第二周碩博專討演講公告(02/24)
2022.02.22
碩博專討演講公告
題目:
Metasurfaces and Flat Optics for Imaging, Sensing, and Lasing Applications
主講人:黃耀緯 助理教授
現職:國立陽明交通大學 光電工程學系 助理教授
內容摘要:
Metasurfaces composed of sub-wavelength artificial structures enable spatial modulations of phase, polarization, dispersion on demand, leading to a plethora of flat optics. Due to the flat-profile nature of metasurfaces, they demonstrate some potential in replacing the bulky three-dimensional optical elements in the optical systems. In this talk, I will report the developments and applications of metasurfaces in endoscopic imaging, imaging in augmented reality and virtual reality (AR/VR) system, depth sensor, and super-chiral laser. In biomedical imaging application, we integrated a metalens into the design of an endoscopic optical coherence tomography catheter to achieve near diffraction-limited imaging and maintain high-resolution. We developed an achromatic flat lens to resolve the bottleneck of current AR/VR technologies. In the sensing application, we developed a compact depth sensor that is inspired by the jumping spider. It combines metalens optics with efficient computations to measure depth from image defocus. In the lasing application, we reveal a metasurface-enhanced laser that produces high-purity and high quantum number of non-symmetric vortex beams that lase simultaneously. These state-of-the-art metasurfaces open a path to a new type of platform for today’s optical devices and lay promising groundwork of metasurface systems in the future decades toward advanced nanophotonics and technologies.
時間:民國111年02月24日 星期四
地點:moodle上觀看線上影片及成功大學成功校區三系館鋼構區(3F)共同教室 A1302演講廳
題目:
Metasurfaces and Flat Optics for Imaging, Sensing, and Lasing Applications
主講人:黃耀緯 助理教授
現職:國立陽明交通大學 光電工程學系 助理教授
內容摘要:
Metasurfaces composed of sub-wavelength artificial structures enable spatial modulations of phase, polarization, dispersion on demand, leading to a plethora of flat optics. Due to the flat-profile nature of metasurfaces, they demonstrate some potential in replacing the bulky three-dimensional optical elements in the optical systems. In this talk, I will report the developments and applications of metasurfaces in endoscopic imaging, imaging in augmented reality and virtual reality (AR/VR) system, depth sensor, and super-chiral laser. In biomedical imaging application, we integrated a metalens into the design of an endoscopic optical coherence tomography catheter to achieve near diffraction-limited imaging and maintain high-resolution. We developed an achromatic flat lens to resolve the bottleneck of current AR/VR technologies. In the sensing application, we developed a compact depth sensor that is inspired by the jumping spider. It combines metalens optics with efficient computations to measure depth from image defocus. In the lasing application, we reveal a metasurface-enhanced laser that produces high-purity and high quantum number of non-symmetric vortex beams that lase simultaneously. These state-of-the-art metasurfaces open a path to a new type of platform for today’s optical devices and lay promising groundwork of metasurface systems in the future decades toward advanced nanophotonics and technologies.
時間:民國111年02月24日 星期四
地點:moodle上觀看線上影片及成功大學成功校區三系館鋼構區(3F)共同教室 A1302演講廳