In this paper, a series of effects of CCD interaction with laser are taken together in consideration. These effects divide the light intensity axis into three sections named respectively as ‘normal’, ‘dazzle’ and ‘damage’, along the positive direction. For the effects on first two sections, a general model is proposed to describe them, which reflect the performance jump charateristics of CCD under laser irradiation. In fact, the model contains the jump functions of three performance parameters, which are response efficiency, charge transfer inefficiency and leakage current. Thereinto, the first is used to describe the pixel itself, and the remaining two are used to describe the influence between pixels. The leakage current parameters include a variety of situations, such as the leakage current between pixels, the leakage current between channels and even the leakage current between subarrays in a large array. When all three kinds of parameters don’t jump, the CCD works normal. When anyone of them jumps, the CCD is dazzled by light. Of course, the parameter jump in a dazzled CCD can return to normal when light intensity decreases. However, the damage section on light intensity axis is temporarily not described in this paper. After all, the damaged CCD is not a CCD again.

Date Published: 29 March 2019
PDF: 7 pages
Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 110462R (29 March 2019); doi: 10.1117/12.2524253

Published in SPIE Proceedings Vol. 11046:
Fifth International Symposium on Laser Interaction with Matter
YiJun Zhao, Editor(s)