Diffractive Optical Element for Noise-reduced Beam Shaping of Multi-array Point Light SourceDiffractive Optical Element for Noise-reduced Beam Shaping of Multi-array Point Light Source
- Other Titles
- Diffractive Optical Element for Noise-reduced Beam Shaping of Multi-array Point Light Source
- Authors
- 이종현; 한준구; 김휘
- Issue Date
- 2021
- Publisher
- 한국광학회
- Keywords
- Diffractive optical element; Incoherent beam shaping; Noise management
- Citation
- Current Optics and Photonics, v.5, no.5, pp.506 - 513
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Current Optics and Photonics
- Volume
- 5
- Number
- 5
- Start Page
- 506
- End Page
- 513
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/137929
- ISSN
- 2508-7266
- Abstract
- An arrayed diffractive optical element design for the beam-shaping of a multi-array light source is proposed. This is an essential device for recent optical security and face recognition applications. In practice, we devise a DC noise reduction technique featuring high fabrication error tolerance regarding the multi-array light source diffractive optical elements, as a necessary part of the proposed design method. The spherical diverging illumination leads to DC-conjugate noise spreading. The main idea is tested experimentally, and the multi-array light source diffraction pattern is investigated numerically.
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Collections - Graduate School > Department of Electronics and Information Engineering > 1. Journal Articles
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