Concrete suggestion of producing neutrons using laser light is put forward. Also described are the reasons for selecting LiD as preferential target, and dependence of neutron yield N on the incident light energy E and the focus range. In addition, preparation of LiD targete, the experimental demonstration of neutron and X-ray together with some issues of quantitative measurement are discussed. To make the facility compact, the author proposed that chemicals might be used instead of capacitors.

A two-dimensional theoretical model for predicting the diffusional CW oxygen-iodine laser performances is presetted. The parallel mixing at constant lateral pressure between a pair of primary and secondary streams is assumed. A set of parabolic partial differential equations are solved using the finite-difference techniques. The change of specific power with flow direction and the effect of the concentration of O2(1) on specific power are studied.

In a large volum UV preionized TEA CO2 laser partial replacement of He with industrial-grade Ar is possible. The effects of Ar contents on the discharge stability and the output pulse energy are studied. When CO2-N2-He-Ar is doped with tripropylamine, the discharge stability can be improved.

The design of a pulsed single-mode dye laser pumped by a copper vapour laser 13 presented. The experimental results using Rh6G, BhB and Kiten Bed S are given. The dye laser produces up to 200mW single-mode average power at an efficiency of over 4.5%. The linewidth. of the single-mode laser is 100MHz and its wavelength range is 563-642 nm.

The effect of change in scale and rotation of the signals in a lenslesa intensity correlator using Fresnel holographic filter has been considered both theoretically and experimentally. The experimental results show that it ia not sensitive to scale change and rotation. Thus it offers convenience in the application of certain pattern recognition.

The dipole moments of eighteen benzene derivative molecules were calculated theoretically, and the frequency doubling properties of their crystals were predicted. These molecular crystals have been synthesized and their frequency doubling effects and molecular dipole moments have also been measured. The theoretically predicted frequency doubling properties were in fair agreement with the measured values. This provides us new evidence that there is a correlation between the frequency doubling effects and the molecular dipole moments which was put forward by the authors some time ago. Four benzene derivatives that may become promising frequecy doubling materials have been selected. Among them the intensities of second harmonic efficiency of 3-MNA and 3-NBA is 7 and 2 respectively, with that of ADP taken as unity.

A projection-type holographic microscope with double projection-objectives and a holographic screen used for integrated circuits assembly and quality control is described. The optical principle of PHM, recording scheme of holographic dispersion of screen and relative parameters of PHM are discussed.

The shock wave in SiH4 laser plasma chemical vapour deposition (LPCVD) are measured byoptoacoustic laser deflection (OLD) technique. The result shows that the shock wars induced by laser gas breakdown is the basic gaa kinetic process in LPGVD. Also discussed is its influence on thin film growth.

Optical properties of superficial layers on bulk metal surface are determined by ATB technique with the Otto configuration. The measured ATE spectra are fitted with the theoretical calculations and their optical constants and thickness of the superficial layers are determined.

The optical field at the exit end of multi-mode fiber is treated as a quasi-homogeneous source, while that of single-mode fiber is treated as homogeneous partial coherence source. The second-order statistical correlation function and angular correlation function are used to analyze the correlation properties of the exit end and the near and far field of optical fibers. The transverse and angular coherent lengths and the optical intensity distribution parameters have been obtained. The theoretical results are compared to those of experiments.

An ultrasonic modulated solid laser as light source has been developed on the basis of analysing the shortcomings of free-running laser applied universally to laser micro-probe spectrophotometer presently. A new design of time-delay voltage supply of auxiliary electrodes is put forward. Combining the two techniques, an ultrasonic modulated laser micro-probe spectrophotometer with high stability, high sensitivity and low background of spectrum has been developed.

A newly designed thyristor full wave rectifier is introduced here. Differing from the traditional synchronizing and triggering mode, the rectifier adopts the opto-electric coupler as isolator and the couter-EPROM set as pulse allotter. Though both the analogue and digital mode are involved in the processing of signal transmission, the main process which included the series-phase-shifting and the parallel-triggering is formed by the digital circuit. So apart from the merits of simplicity and reliability, the outstanding advantage is the high anti-disturbance ability. It can be the first choice as laser power supply.

Experimental results on the SE8 of CH4 pumped by 0.532μm laser are reported. The pulse width of the first-order Stokes light is 1/2 shorter than that of the pumping one.

CARS spectra of N2 in a premised coal gas/air flat flame have been measured. By comparing the experimental spectra with the theoretically calculated one, the temperature of the flame has been determined.

The contour lines of the coupling efficiency of hemispherical mierolenses determined by parameters of single-mode laser and single-mode fiber are calculated. The method for etched and fused fabrication on the single-mode fiber end is described. Experimental results for hemispherical lenses are in good agreement with the theory, and 70% of the optimum theoretical value has been obtained.

The concentration profile of dopants in optical fiber preforms has been measured with Eaman spectra and the results agree quite well with those from scanning electron microscope equipped with energy spectroscope.