The image shows the application of multifunctional and multitype metasurfaces in biochemical sensing. In the middle of the image, it is shown that metasurfaces with different functions generate different chiral light fields under the excitation of incident THz waves so that various biomolecules on the surface can be detected.
Silica coated gold nanoparticles exhibit improved photothermal stability and nonlinearity, and enable to achieve super-resolution imaging with dual beam scattering suppression imaging (SUSI) microscopes.
The incident light on the left side of the cover sequentially passes through a linear polarizer, a microlens array, and a vortex retarder, and then enters a single-pixel detector to perform polarization centroid positioning. The emitted light on the right side is the logo for the 70th anniversary of the National University of Defense Technology.
The image depicts the spatiotemporal intensity and phase profile of a wavepacket with multiple spiral phases embedded in different space-time domains. Such a spatiotemporal phase structure allows a full-vectorial control over the orbital angular momentum carried by the wavepacket.
An unknown vectorial optical field pumps the NV center in single crystal diamond from the upside. The spontaneous emission from NV centers with different symmetry axes then carries the polarization and intensity information of the optical field. The spatial distribution of the optical field vector will be reconstructed through fluorescence from multiple NV centers.
A photonic integrated chip for option pricing achieves precise market capturing and computational speedup through generative adversarial learning and quantum amplitude estimation algorithm. It is a step forward in specialized photonic processors to improve the efficiency and quality of financial applications.
Deformed shape microcavity lasers based on transformation optics are demonstrated for the first time, which exploit whispering gallery modes (WGMs) free from Q-degradation. Q spoiling caused by the boundary shape deformation is recovered by spatially varying nanohole density distribution.
By harnessing evanescent scattering waves of epsilon-near-zero particles, second-harmonic generation quenching effect was unveiled. This breaks the traditional conception that epsilon-near-zero media are always responsible for second-harmonic generation enhancement and creates pathways for applications in dynamically controllable nonlinear optical metasurfaces.