With a goal of mimicking the mechanisms of the biological effect of low intensity laser radiation, we have measured the rates of oxygenation of chemical traps of singlet oxygen in air-saturated organic solvents and deuterium oxide

Photonic crystal based nanophotonic devices have been studied for various applications. One important type of devices are optical add-drop multiplexers (OADMs) that consist of photonic crystal cavities and waveguides. We show some

The result of experimental investigation of continuous-wave (CW) diode-pumped microchip and mini lasers with an intracavity Raman conversion in a set of crystals is presented. Self-frequency Raman conversion effect in Nd:KGW, Yb:K

The morphology of self-organized InP islands on GaInP buffer layers were probed by the whole island energy and surface energy. The island morphology was affected by Mismatch between GaxIn_(1-x)P buffer layer and InP island (MBI).

We briefly outline a modelling strategy, combining quantum chemistry and molecular dynamics simulations, for obtaining macroscopic nonlinear optical coeffcients in guest-host systems like chromophores in solutions or in polymer ma

The studies of third-order nonlinear optical properties of organometallic compounds containing ruthenium and 'pi'-conjugated organic segments (phenylene, ethenylene, and ethynylene) is described. Our special interest has been in t

The mechanical properties of fluorescent microtubules (MTs) are probed with dual-optical tweezers system. The results indicate that the fluorescent MTs are much easier to be extended compared with those without fluorescence. Such

Nonlinear optical materials adopting optoelectronics elements are required to have a third-order nonlinear optical susceptibility of 10^(-9) order [esu]. However, the relationship between nonlinear optical characteristics and the

The passively quenched operation of avalanche photodiode (APD) has been used to characterizing InGaAs/InP APD including punch through voltage, avalanche voltage and break down voltage that are all important in the design of APD fo

The excited state absorption and optical limiting of a series of platinum(II) 4'-arylterpyridyl acetylide complexes have been investigated. These complexes possess relatively long triplet excited state lifetime that varies from te

The surface acoustic waves generated by a pulsed laser in pipes are studied by using the finite element method. The time domain waveforms of guided waves in three different thickness pipes are obtained in the near field. The numer

Red shift of green-emission band has been observed for fac tris(2-phenylpyridine) iridium (Ir(ppy)3) doped in polycarbonate at 8 K during time evolution after 355-nm laser of 1-ns pulse width. We explain the peak shift and vibroni

Numerical calculation has been undertaken on the temperature dependence of photoluminescence (PL) intensity and PL lifetime offac tris(2-phenylpyridine) iridium (Ir(ppy)3) phosphorescent material doped in 4,4'-bis[N-(p-tolyl)-N-ph

Slow and superluminal light propagation in temporal nonlocal response Kerr media has been investigated. The group velocity, as low as tens of few centimeters per second, can be easily obtained by tuning the wavelength of a continu

A novel organic chromophore (A1) is designed and synthesized with a fine structure for two-photon absorption (TPA). The single-photon induced fluorescence spectra and the fluorescence lifetime have been studied for A1, excited res

A series of diarylethene derivatives with two-photon absorption was designed and synthesized. The nonlinear properties of two-photon induced fluorescence of the compounds were examined. A strategy for the design of molecules with

A real-coded genetic algorithm (RGA) for fiber Bragg grating (FBG) distributed sensing is presented. The distributed strain fields along the fiber Bragg grating sensor (FBGS) are real coded into genes, and the concept of elitism a

Dammann grating is one kind of binary optical elements. We fabricated Dammann gratings in silica glass using femtosecond laser pulses at the wavelength of 800 nm with the repetition rate of 1 kHz. By using two-dimensional (2D) sca

We report a new method for second harmonic generation (SHG) by using centro-symmetric dielectric, of which 'chi'(2) is zero, rather than common nonlinear material. By designing the unique structure of centro-symmetric dielectric,

Dark-current-voltage curves and photon-current-voltage curves were measured by a passive quenched circuit so that the voltage applied to the avalanche photodiode can be much higher than breakdown voltage in study on the depth of p

The influence of the different phase functions on the spatially resolved reflectance measurements is studied with Monte Carlo simulations. We show that the spatially resolved reflectance from a homogenous semi-infinite medium is m

The Langmuir-Blodgett (LB) films of hemicyanine dyes were prepared by LB technique. The films showed pyroelectric effect. The pyroelectric coefficient measured by the method of integrated charges was 12 'mu'C/(m2K) at room tempera

Optical trapping is an increasingly important technique for manipulating and probing matter ranging from nanometers to millimeters. In this paper, the theories of optical trapping to date are reviewed briefly. The typical conventi

The terahertz (THz) transmission properties of a single sub-wavelength circular hole in the free-standing metal foil are experimentally investigated. A THz time-domain spectroscopy (THz-TDS) is utilized to measure the transmission

The second-order nonlinear optical characteristics of a novel organic crystal, urea L-malic acid (ULMA), were studied. Both type I and type II phase-matching angles of the biaxial crystal ULMA were calculated, whose loci are in th

Inductively coupled plasma (ICP) technology is a new advanced version of dry-etching technology compared with the widely used method of reactive ion etching (RIE). Plasma processing of the ICP technology is complicated due to the

This paper summarized the recent research results of Changhe Zhou's group of Information Optics Lab in Shanghai Institute of Optics and Fine Mechanics (SIOM). The first is about the Talbot self-imaging research. We have found the

This paper describes a photoelectric device that is intended to serve as a replacement for degenerated photoreceptor cells in the retina. The device is a kind of silicon based micro-photodiode arrays. The final implant devices wer

We experimentally demonstrate a wideband double-pass discrete Raman amplifier using a gold-film. In this Raman amplifier (RA), by using a one-end gilded fiber as the broadband reflector, signals and multi-pump are simultaneously r

The ethanol-water mixtures can emit fluorescence when excited by the ultraviolet (UV) light, which is different from pure ethanol and water. There are three emission bands of the mixtures and the center bands are located at 290, 3

A possible correlation between second-order dispersion and glucose concentration is presented for the first time. The second-order dispersions of three different glucose concentrations: hypoglycemia, normal level, and hyperglycemi

We have successfully fabricated microstructured polymer optical fiber (MPOF) preforms by polymerization method of monomer and thermo-melting-extrusion of PMMA grains in home-made mould. Monomer-based fabrication of MPOF preform of

We have studied the influence of degenerate four wave mixing (FWM) on the performance of the multiwavelength continuous-wave (CW) optical source based on supercontinuum (SC). By suppressing degenerate FWM, a 100-channel SC CW opti

Two models to calculate the irradiance threshold for laser-induced breakdown for water have been introduced. Both of the models have been incorporated into a computer code and code results compared to experimentally measured irrad

A numerical study of the expansion of a laser-induced plasma is given by using of techniques of computational fluid dynamics. According to the experiment results reported, the density of electrons is assembled on the surface of th

Patterning of self-assembled monolayer (SAM) was demonstrated by area-selective deposition of SAMs on a pattern made by synchrotron radiation (SR) stimulated etching SiO2 thin films. The etching was conducted by exposing the SiO2

We present the switching equations for the nonlinear optical loop mirror (NOLM), for two NOLM loops in series, for two NOLM loops in parallel, for the nonlinear amplifying loop mirror (NALM), for two NALM loops in series, and for

The interference patterns produced by Gaussian-shaped broad-bandwidth femtosecond pulsed laser sources are derived. The interference pattern contains both spatial and temporal properties of laser beam. Interference intensity depen

We studied terahertz spectra of hexanitrohexaazaisowurtzitane ('varepsilon'-HNIW and 'gamma'-HNIW), a kind of explosive materials, using terahertz time-domain spectroscopy (THz-TDS) in the 0.2-2.5 THz region. The experimental resu

A novel interrogation system for fiber Bragg grating (FBG) sensors with a tunable fiber Fabry-Perot (FFP) wavelength filter is proposed. The system combines a feedback loop arrangement and micro control unit (MCU), which integrate

Experimental investigation of Talbot self-imaging effect of an amplitude grating under illumination of femtosecond laser pulse -- the FemtoTalbot effect is reported. Theoretical analyzed results show that Talbot images under illum

Hyper-Rayleigh scattering (HRS) technique has been used to study second-order nonlinear optical (NLO) properties of some centrosymmetric metal and semiconductor nanoparticles. All the samples display big "per particle" first hyper

The first hyperpolarizabilities ('beta') of four azobenzene derivatives are measured via hyper-Rayleigh scattering (HRS) technique at 1064 nm. These compounds show weak absorbance at 532 nm and neglectable two-photon fluorescence

Broadband parametric amplification is applied for the femtosecond ultrafast fluorescence research. The time resolution depends on duration of pump pulse, which works both as pump source and gate. For spectrum application, a specia

The exclusive carrier of photonics is photon, which is a kind of microscopic particles so that obeys the generalized Schrodinger equation, namely the motion equation for a photon. A novel state-vector function that satisfies the e

Two-photon excited stimulated emission at ~617 nm has been achieved in an organic chromophore solution pumped at 1064 nm. The stimulated emission can be observed only in the forward and backward directions and is characterized by

A new class of fiber grating with only cladding index modulation is presented and analyzed theoretically. The calculation of the modes involved in this paper is based on a model of three-layer step-index fiber geometry. The transm

We describe high-efficiency diffraction gratings fabricated in fused silica at the wavelength of 632.8 nm by rigorous coupled-wave analysis (RCWA). High-density holographic gratings, if the groove density falls within the range of

Visualization of the protein secretory pathway in the high secreting trichoderma reesei (T. reesei) hyphae using confocal microscopy will lead to better understanding of the cellular mechanisms involved in protein secretion and co

Currently, lasers are widely used in biomedical field for both diagnoses and treatment. At the same time, new laser techniques are investigated to improve the application efficiency. Due to its ultrashort pulse duration and high p

Yin-yang concepts of traditional Chinese medicine (TCM) for TCM objects such as whole body, five zangs or six fus are widely used to discuss cellular processes. In this paper, the concept of the degree of difficulty (DD) of a proc

In this paper, laser induced human serum Raman spectra of liver cancer are measured. The differences in serum spectra between normal people and liver cancer patients are analyzed. For the typical spectrum of normal serum, there ar

Optical coherence tomography (OCT) is a noninvasive cross-sectional imaging modality capable of measuring tissue morphology and function with high spatial resolution. Both the amplitude and the phase of the interometric heterodyne

If the radiation intensity is so low that the photodynamic effects of endogenous photosensitizers can not damage membrane or cell compartments, there would be photobiomodulation on delayed onset muscle soreness (DOMS) at the radia

High signal-to-noise surface enhanced Raman scattering (SERS) signal of rat serum was obtained in this article. Two methods were presented to enhance the intensity of rat serum SERS signal. The novel colloid silver was synthesized

The dysphotopia that is connected to the reflection of light from the intraocular lens (IOL) edge is analyzed. A new IOL with 'Sigma' edge is investigated, and other three IOLs are also studied for comparison. The interaction of r

A specific designed steady-state fiber spectrometer system was applied to measure the optical parameters in rat brain tissue. The reduced scattering coefficient spectrum was obtained from the responding empirical formula, while th

With improvements in infrared camera technology and the promise of reduced costs and noninvasive character, infrared thermal imaging resurges in medicine. The skin temperature distribution of a healthy human body exhibits a contra

Development of a compact fluorescence point-of-care system (POCS) is challenging. A prototype of compact fluorescence detection system and disposable microfluidic chip reported in this letter used a blue LED, 600-micron fiber, CCD

In this paper, we present a three-parametric model using Raman and fluorescence spectroscopy for detection and analysis of esophagus dysphasia and esophagus cancer. The model was set up from more than 1000 samples. And 56 samples

Near-infrared spectroscopy (NIRS) was used to measure changes of total hemoglobin concentration, 'Delta'(Hb)_(total), and relative vascular oxygenation 'Delta'(HbO2) in rat mammary and prostate tumors in response to hyperoxic gas

The effects of laser irradiation on erythrocyte deformability and related mechanism were investigated. Membrane attached hemoglobin (Hbm) is the determinant factor of erythrocyte deformability. After irradiation of 532 nm (30 mW,

The photophysical and photochemical properties of electronically excited states of thymine and its water complexes are studied using resonantly enhanced multiphoton ionization spectroscopy. After initial excitation by a nanosecond

Light-induced delayed luminescence (DL) of living organisms contains information on the quality of the living state of these organisms. Employing a LS-55 Luminescence Spectrometer, the changes of DL spectra of rice with Aspergillu

Intravascular low intensity laser therapy (ILILT) was popular in Russia in 1980s and in China in 1990s, respectively. There is photobiomodulation on blood cells and blood in vitro if the radiation intensity is so low that the phot

The stimulated emission in the quasi-periodic photonic crystals is investigated in this paper. It was found that there are some interesting phenomenons in that structure. The lasing is more abundant and stronger compared with that

An optical power splitter with one input and three output ports is proposed and demonstrated for near infrared applications in the wavelength range from 2.3 to 2.5 microns. The device operates on the principle of directional coupl

The fundamental resolution limit and depth of focus of immersion lithography are described. The image contrasts for TE polarization, TM polarization, and unpolarized condition are explored in detail. There are complications associ

Micro-optic elements have been fabricated in silica and soda-lime glass with femtosecond laser pulses. The dependence of refractive index change on pulse duration, pulse energy and scan passes is investigated and a Fresnel zone pl

We report direct measurements of both magnitude and spectral dispersion of two-photon absorption in organic-capped CdSe quantum dots and three-photon absorption in organic-capped ZnO quantum dots by the use of open-aperture Z-scan

A finite-difference time-domain (FDTD) scheme in Cartesian coordinate system is developed to analyze the guided-wave properties of a class of two-dimensional (2D) photonic crystals formed by square or triangular arrays of metal po

Hydrophilic photo luminescent semiconductor quantum dots (QDs) are novel nanometer-size probes, which may have potential using in bio-imaging for biological objects. In this work, the photo-stability of these QDs in two kinds of l

Anti-resonant reflecting photonic crystal structure in vertical-cavity surface-emitting lasers (VCSELs) to achieve photon confinement in lateral direction is introduced. This kind of design is proposed to support large aperture si

The third-order susceptibility of multiwalled carbon nanotubes (MWCNTs) grown on Si substrate were measured using reflective Z-scan (RZ-scan) technique with femto-second laser pulses at 790 nm. The nonlinear absorption coefficient

Water-soluble CdTe quantum dots (QD600) were synthesized by hydrothermal route. The uptake of QD600 in living cells of euglena gracilis was studied. The luminescence spectra show that the QD600 were bound in cells after incubation

Defect is built as that in the semiconductor when some metal posts are withdrawn regularly from the two-dimensional (2D) photonic crystal (PC) formed by triangular arrays of metal posts. Such defect can be used to design cavity. T

Electroporation is a physical process that transiently permeabilizes prokaryotic and eukaryotic cell membranes with an electrical pulse, permitting cell uptake of a variety of biological molecules. Because of the advantages of hig

Atom lithography suffers from serious practical limitations, which have limited the application of this technique in practice. Double deposition method, manipulation of atoms with a linear polarization gradient laser field and mov

Finite element analysis is used to study the near infrared light distribution in brain tissue. The diameter of the light beam varies from 100 microns to 1 mm. The researching results indicate that the near infrared light distribut

Monte-Carlo simulation was used to study photon distribution in brain tissue, look ahead distance (LAD) empirical formula and theoretical model of near-infrared (NIR) neurosurgical manipulation microwound probe were obtained from

The formula <n&gtd=d/2, which describes bio-electromagnetic athermal effect, is deduced employing quantum theory. This law shows that the bio-electromagnetic athermal effect has no relation to the irradiation power, but to the str

Based on the experimental researches on the fluorescence spectra of 1% erythrocyte solution with various concentration of alcohol excited by violet light-emitting diode LED light at 407 nm, the mechanism of alcohol on the fluoresc

The principle of the algorithm for stability near infrared (NIR) optical Tomography (CT) is introduced. The forward problem of optical CT is how to solve the Boltzmann transmitting equation based on finite rlement method (FEM). Th

Varietal purity is the most important quality parameter of maize seeds, which has direct and prominent influence on the output and quality of maize. For the first time, to our knowledge, we present a new kind of terahertz (THz) sc

ZnO is an n-type semiconductor having a hexagonal wurtzite structure. By X-ray diffraction (XRD) and scanning electron microscope (SEM), the influences of substrate temperature, the ratio of Ar to O2 and thermal temperature on ZnO

We systematically investigate a strain of self-assembled InAs/GaAs quantum dots (QDs) for the case of growth on a (001) substrate. The dependence of the biaxial and hydrostatic components of the strain on the quantum dot aspect ra

In this paper, the p-i-n multiple-layer Al_(x)Ga~~(1-x)N sample with high Al (x&gt0.45) content was measured by the triple-axis X-ray diffraction measurement. The strain state and screw dislocation density of each layer in Al~~(x

The third-order nonlinearities of PbS nano-belts have been investigated using the Z-scan technique with nanosecond laser pulses at 532 nm. The effect of the PbS semiconductor nano-belt size on the third-order optical nonlinearitie

Using numerical simulation method based on finite-difference time-domain (FDTD), we study the characteristics of the multiple-core photonic crystal fibers (PCFs) in which square-nested compound lattices (SNCLs) with several defect

The optical properties of carbon nanotubes are studied. Align carbon nanotubes films were synthesized by chemical vapour deposition method in our lab. The diameter of carbon nanotube is about 20-30 nm. The amorphous carbon impurit

In single-particle tracking (SPT), fluorescence video microscopy is used to record the motion images of single particle or single molecule. Here, by using a total-internal-reflection microscope equipped with an argon ion laser and

The nanoparticles ZnO had been prepared on the surface of ZnS:Cu by homogeneous precipitate method. The urea was used as precipitator in the process of hydrolysis reaction. X-ray diffraction (XRD) and infrared (IR) spectra indicat

The surface morphology is one of the important factors to determine the optical properties of colloidal quantum dots. Colloidal CdSe dots were synthesized by the injection of precursor molecules in a hot surfactant, and a series o

We investigate the dynamics of photonic crystal (PC) molecules with Kerr nonlinearity by numerical simulations in a pump-probe scheme based on the finite-difference time-domain technique. The constitutional PC atoms of the nonline

Bandgap and defect mode are important properties of two-dimensional (2D) photonic crystal, which determine the application of photonic crystal. At present, researchers have done a large amount of studying on point defect and line

A scheme is proposed to implement quantum state transfer between two distant atoms through sending the atoms across two distant cavities connected via an optical fiber. The field state, which preserves the information of the first

The probe absorption spectrum of a four-level atom embedded in a double-band photonic crystal is discussed in this paper. The double V-type transitions from the two upper levels to the two lower levels interact with the free vacuu

We present two novel 1*N dynamic optical couplers that are based on Dammann gratings to achieve dynamic optical coupled technology. One is presented by employing a specially designed Dammann grating that consists of the Dammann-gr

Research of the first-order Raman fiber laser pumped by a continuous wave (CW) fiber laser is presented using domestic Bragg gratings with corning SMF-28TM silica fiber as the gain material. Formation process of Raman laser is stu

We investigate the coupling characteristics in dual-core photonic crystal fibers (PCFs) with elliptical air holes and their applications in the construction of polarization splitters by use of a full-vector beam propagation method

A model of a structure consisting of nonperiodic closely spaced metal nanoparticles array, in which electromagnetic energy can be transported and splitted below the diffraction limit, is founded. Based on finite difference time do

We propose a protocol where one can realize quantum cloning of an unknown two-particle entangled state and its orthogonal complement state with assistance offered by a state preparer. The first stage of the protocol requires usual

Polymer films thickness is one of the critical factors for the operation performance of the integrated optical devices (IODs) based on polymer planar waveguides and it is difficult to real-time determine it during corresponding fa

A triple-layer light-emitting diode based on an organic salt ASPT (trans-4-[p-[N-methyl-N-(hydroxyethyl)amino]styryl]-N-methylpyridinium tetraphenylborate), in which TPD and Alq3 were employed as hole and electron transporting mat

Two-color holographic recording was performed in near-stoichiometric LiNbO3 crystals doped with 50-ppm Mn, where the crystals were thermally annealed in different oxidation/reduction atmospheres. Two-color recording properties inc

The free photoelectron signals of spectral sensitized AgCl emulsion with different sensitization concentrations are obtained from microwave absorption dielectric spectrum experiment. It is found that when sensitization concentrati

The polyimide-silica nonlinear optical (NLO) hybrid materials with covalent links between the inorganic and the organic networks were synthesized by the sol-gel method. The prepared hybrids were characterized by IR, TGA, XRD, SEM,

Two-photon absorption (TPA) cross sections of an organic dye, trans-4-[p-(N-hydroxyethyl-N-methylamino)styryl]-N-methylpyridinium iodide (abbreviated as ASPI), from 810 to 1100 nm have been measured in two solvents (benzyl alcohol

The new chromophore molecules with nonlinear optical (NLO) properties were prepared by Knoevenagel condensation from diformyl calix[4]arene and isophorone derivatives in the presence of piperidine and acetic acid, respectively. In

Laser ultrasound is a technique based on lasers to generate and detect ultrasound remotely. The thermal expansion arising from the optical absorption of a short laser pulse generates ultrasonic wave. By using finite element method

Microwave absorption and dielectric spectral detection technology with high time resolution (1 ns) is used for contactless measurement of electron property in solid materials. In this paper, the free photoelectron time-resolved sp

A new nano-meter scale resolution optical imaging mode and functional prototype of photon scanning tunneling microscope (PSTM) combined with atomic force microscope (AFM) named as AF/PSTM are introduced, and the advantages of AF/P

AF/RSNOM is a new kind of scanning probe microscope developed in our lab, which is a combination of atomic force microscope and reflection scanning near field optical microscopy (AF/RSNOM) working in equi-amplitude tapping mode. T

The imaging technology of stimulated emission depletion (STED) utilizes the nonlinearity relationship between the fluorescence saturation and the excited state stimulated depletion. It implements three-dimensional (3D) imaging and

A novel measurement system for the gas density based on spectrum absorption is studied in details. Based on the theory of Beer-Lambert, the technology of nonlinear laser diode (LD) spectrum is used to perform the polluting gases m

Optical coherence tomography (OCT) suffers from random noises which degrade contrast of image, these noises can not effectively be wiped off by filtering technique. Characteristics of random noises were discussed and analyzed, noi

Steady-state diffuse reflectance based on P3 approximation is studied at short source-detector separations. In many practical applications, we can only measure the diffuse reflectance light close to the source, and attempt to deri

In the field of nondestructive evaluation, laser generation and detection of the surface acoustic waves (SAWs) are potentially useful for investigating material surfaces. SAW generated by laser line source is carried out on a kind

In order to further confirm the relations between the size of internal defect and the measured ultrasonic signals and understand the interaction mechanism between the ultrasonic wave and inside defect, this paper has constructed t

The improvement of the generation efficiency has attracted much attention, confronted with the little amplitude of acoustic wave generated by pulsed laser in the thermoelastic regime. This paper constructed the finite element mode

Frequency resolved optical gating (FROG), is an effective technique for characterizing the ultrafast laser pulses. The multi-shot second harmonic generation (SHG) FROG is the most sensitive one in different FROGs. In this paper we

To achieve detection, monitoring, and automation of starch graft copolymerzation at any time, the investigation is being made according to luminescence of free radicals produced in the reaction. The investigations on the fluoresce

The electro-optic modulator with the novel structure combining ridge structure and T-type electrode is given. Integrating T-type electrode structure and ridge wave guide structure should realize phase velocity matching, reduce eff

Infinitely narrow photon beams have been used in the former Monte Carlo modelling about the signal of optical coherence tomography (OCT). However, the focused spot size is finite and determined by the center wavelength of the opti

The mode coupling in multimode fiber Bragg gratings (MMFBGs) is analyzed by using the coupled-mode theory. The reflection spectra of MMFBGs excited by one mode and two modes are simulated. The results of the calculation show that

The diffractive field distributions of the dark edge on the negative, the edge of the knife and the single edge of the wire were investigated using photo-multiplier system. The results show that the new diffractive formula with th

The solution of the diffusion equation in multiple-scattering media with photon density wave is investigated and expanded in the theoretical aspect. A second-order analytical solution of diffusion equation in semi-infinite cube sp

We have observed a hole in the absorption profile of the homogeneously broadened absorption band of an Alexandrite crystal. With the spectral hole-burning technique that resulting from the periodic modulation of the ground state p

Because of high efficiencies, compact structure, and excellent heat dissipation, high-power fiber lasers are extremely useful for applications such as cutting, welding, precision drilling, trimming, sensing, optical transmitter, m

Talbot effect of a grating with different flaws is analyzed with the finite-difference time-domain (FDTD) method. The FDTD method can show the exact near-field distribution of different flaws in a high-density grating, which is im

The gas content is one of the important bubble parameters. In this article, the gas content effect on the bubble motion is investigated by numerical simulation based on the spherical bubble model. The dependence of the bubble radi

Laser generated ultrasonic waves is numerically simulated by mass spring lattice model by considering the laser illumination as a vertical force, which is valid in the ablation regime. Few surface acoustic wave modes including sur

To study characteristics of acoustic wave generated by Q-switched laser on dermal pigmented lesions, pieces of derma peeled from a cavy's body are plucked their hair. The pieces of derma are radiated by Q-switched laser with diffe

In this paper, by means of a high-sensitive optical beam deflection technique combined with electrical delay technique, shock wave and cavitation effects by laser ablation of a metal in water are investigated in detail. The system

By means of an optical fiber sensor based on beam deflection technique, the laser-induced plasma shock waves propagating in transparent organic glass are systemically investigated in experiments. Under the condition of free attenu

According to the geometry optical principles, a high intensity infrared radiation system for medical application is designed. In this system, the infrared optical fiber's output energy density can reach 17 kW/cm2 after being focus