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http://dx.doi.org/10.9766/KIMST.2016.19.6.690

Damage Analysis of CCD Image Sensor Irradiated by Continuous Wave Laser  

Yoon, Sunghee (Department of Mechanical Convergence Engineering, Hanyang University)
Jhang, Kyung-Young (School of Mechanical Engineering, Hanyang University)
Shin, Wan-Soon (Advanced Technology Agile Development Center, Agency for Defense Development)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.19, no.6, 2016 , pp. 690-697 More about this Journal
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.
Keywords
CCD Image Sensor; Laser-Induced Damage; CW Laser;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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