The outstanding issue to overcoming atmospheric turbulence on distant imaging is a fundamental interest and technological challenge.We propose a novel scenario and technique to restore the optical image in turbulent e...The outstanding issue to overcoming atmospheric turbulence on distant imaging is a fundamental interest and technological challenge.We propose a novel scenario and technique to restore the optical image in turbulent environmental by referring to Cyclopean image with binocular vision.With human visual intelligence,image distortion resulting from the turbulence is shown to be substantially suppressed.Numerical simulation results taking into account of the atmospheric turbulence,optical image system,image sensors,display and binocular vision perception are presented to demonstrate the robustness of the image restoration,which is compared with a single channel planar optical imaging and sensing.Experiment involving binocular telescope,image recording and the stereo-image display is conducted and good agreement is obtained between the simulation with perceptive experience.A natural extension of the scenario is to enhance the capability of anti-vibration or anti-shaking for general optical imaging with Cyclopean image.展开更多
Splitting white light into its constituent spectral components has been of interest ever since Newton first discovered the phenomenon of color separation.Many devices have since been conceived to achieve efficient wav...Splitting white light into its constituent spectral components has been of interest ever since Newton first discovered the phenomenon of color separation.Many devices have since been conceived to achieve efficient wavelength separation,yet a large number of applications,e.g.,in display technology,still use simple color absorption or rejection filters that absorb or reflect unwanted wavelengths,thus wasting luminous energy.Here,we demonstrate a novel microsized device concept that enables efficient color routing.The device operation is based on differential material dispersion in a waveguide array,which causes different wavelength signals to couple selectively into appropriate waveguides.A theoretical power delivery of greater than 50%for a tricolor wavelength router is obtained,compared to 33%expected from geometry alone.The principle of operation is demonstrated experimentally for a dual-color light field,where we achieve a higher than 70%routing efficiency(compared to 50%from geometry),thus highlighting the feasibility of this novel and promising approach.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.61991452)Guangdong Key Project(Grant No.2020B0301030009)the National Key Research and Development Program of China(Grant No.2021YFB2802204).
文摘The outstanding issue to overcoming atmospheric turbulence on distant imaging is a fundamental interest and technological challenge.We propose a novel scenario and technique to restore the optical image in turbulent environmental by referring to Cyclopean image with binocular vision.With human visual intelligence,image distortion resulting from the turbulence is shown to be substantially suppressed.Numerical simulation results taking into account of the atmospheric turbulence,optical image system,image sensors,display and binocular vision perception are presented to demonstrate the robustness of the image restoration,which is compared with a single channel planar optical imaging and sensing.Experiment involving binocular telescope,image recording and the stereo-image display is conducted and good agreement is obtained between the simulation with perceptive experience.A natural extension of the scenario is to enhance the capability of anti-vibration or anti-shaking for general optical imaging with Cyclopean image.
基金This work is supported by The National Key Basic Research Special Foundation(G2010CB923204)Chinese Nation Natural Science Foundation(10934011,11104083)Research Grants Council of Hong Kong(HKUST2/CRF/11G).
文摘Splitting white light into its constituent spectral components has been of interest ever since Newton first discovered the phenomenon of color separation.Many devices have since been conceived to achieve efficient wavelength separation,yet a large number of applications,e.g.,in display technology,still use simple color absorption or rejection filters that absorb or reflect unwanted wavelengths,thus wasting luminous energy.Here,we demonstrate a novel microsized device concept that enables efficient color routing.The device operation is based on differential material dispersion in a waveguide array,which causes different wavelength signals to couple selectively into appropriate waveguides.A theoretical power delivery of greater than 50%for a tricolor wavelength router is obtained,compared to 33%expected from geometry alone.The principle of operation is demonstrated experimentally for a dual-color light field,where we achieve a higher than 70%routing efficiency(compared to 50%from geometry),thus highlighting the feasibility of this novel and promising approach.
