Chen Chen
Harbin Institute of Technology
20 Papers
3 Citations
Chen Chen is an academic researcher from Harbin Institute of Technology. The author has contributed to research in topics: Interferometry & Computer science. The author has an hindex of 4, co-authored 9 publications. Previous affiliations of Chen Chen include Chinese Academy of Sciences.
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Papers
Transversely polarized sub-diffraction optical needle with ultra-long depth of focus
TL;DR: In this article, a purely transversely polarized sub-diffraction optical needle with ultra-long depth of focus (DOF) was generated by focusing azimuthally polarized (AP) beams that were modulated by a vortex 0-2π phase plate and binary phase diffraction optical elements (DOEs).
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Multi-point spectroscopic gas sensing based on coherent FMCW interferometry.
TL;DR: An innovative spectroscopic method based on coherent optical frequency-modulated continuous-wave (FMCW) interferometry that can realize multi-point gas detection with high spatial resolution, high sensitivity, and high selectivity is presented.
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Simultaneous measurement of gas absorption spectra and optical path lengths in a multipass cell by FMCW interferometry
TL;DR: A novel method based on optical frequency-modulated continuous-wave interferometry that can realize simultaneous measurement of gas absorption spectra and optical path lengths (OPLs) in the widely used multipass cells (MPCs) is presented.
20
Simulation for multiwavelength large-aperture all-silicon metalenses in long-wave infrared
TL;DR: In this article , the authors proposed a simulation method for designing a large-aperture metalens, which combines the finite-difference time-domain algorithm and diffraction integration.
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Sub-diffraction focusing by a meta spiral zone plate
TL;DR: In this article , a meta spiral zone plate (MSZP) is proposed to realize sub-diffraction focusing, which combines the modulation functions of radial polarization converter and binary phase spiral plate into one planar element and investigates the effects of the incident beam's incident angle and polarization orientation on the focal spot.
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