Optical-based spectral modeling of infrared focal plane arrays
详细信息 查看全文
- 作者：Salima Mouzali ; salima.mouzali@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Sidonie Lefebvre ; Sylvain Rommeluè ; re ; Yann Ferrec ; Jé ; rô ; me Primot
- 关键词：Infrared detectors ; Quantum detectors ; HgCdTe ; Spectral response ; Optical modeling ; Cut-off wavelength ; Optical properties ; Nonuniformities
- 刊名：Infrared Physics & Technology
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：77
- 期：Complete
- 页码：351-359
- 全文大小：1967 K
文摘
We adopt an optical approach in order to model and predict the spectral signature of an infrared focal plane array. The modeling is based on a multilayer description of the structure and considers a one-dimensional propagation. It provides a better understanding of the physical phenomena occurring within the pixels, which is useful to perform radiometric measurements, as well as to reliably predict the spectral sensitivity of the detector. An exhaustive model is presented, covering the total spectral range of the pixel response. A heuristic model is also described, depicting a complementary approach that separates the different optical phenomena inside the pixel structure. Promising results are presented, validating the models through comparison with experimental results. Finally, advantages and limitations of this approach are discussed.