연속발진 레이저에 의한 CCD 영상센서의 손상 분석Damage Analysis of CCD Image Sensor Irradiated by Continuous Wave Laser
- Other Titles
- Damage Analysis of CCD Image Sensor Irradiated by Continuous Wave Laser
- Authors
- 윤성희; 장경영; 신완순
- Issue Date
- Dec-2016
- Publisher
- 한국군사과학기술학회
- Keywords
- CCD Image Sensor; Laser-Induced Damage; CW Laser; CCD 영상센서; 레이저에 의한 손상; 연속발진 레이저
- Citation
- 한국군사과학기술학회지, v.19, no.6, pp.690 - 697
- Indexed
- KCI
- Journal Title
- 한국군사과학기술학회지
- Volume
- 19
- Number
- 6
- Start Page
- 690
- End Page
- 697
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/2788
- DOI
- 10.9766/KIMST.2016.19.6.690
- ISSN
- 1598-9127
- Abstract
- EOIS(electro-optical imaging system) is the main target of the laser weapon. Specially, the image sensor will be vulnerable because EOIS focuses the incident laser beam onto the image sensor. Accordingly, the laser-induced damage of the image sensor needs to be identified for the counter-measure against the laser attack. In this study, the laser-induced damage of the CCD image sensor irradiated by the CW(continuous wave) NIR(near infrared) laser was experimentally investigated and mechanisms of those damage occurrences were analyzed. In the experiment, the near infrared CW fiber laser was used as a laser source. As the fluence, which is the product of the irradiance and the irradiation time, increased, the permanent damages such as discoloration and breakdown appeared sequentially. The discoloration occurred when the color filter was damaged and then the breakdown occurred when the photodiode and substrate were damaged. From the experimental results, LIDTs(laser-induced damage thresholds) of damages were roughly determined.
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