Three designs of micro-optic structures have been analyzed by two-dimensional simulation. Compared with traditional spherical microlenses, the micro-optic structures have the same ability to collect radiation and do not have the disadvantages of traditional microlenses. In our analysis the micro-optic structures are simple grooved notches above the space between two adjacent mesas. We also investigate the characteristics of InSb focal-plane arrays with both spherical microlenses and micro-optic structures under oblique incident radiation. Empirical formulas were derived to describe the response and crosstalk as a function of incident radiation angle. Our results show that the micro-optic structures can be effectively used in radiation collection for InSb infrared focal-plane arrays. © 2013 TMS.
Guo, N., Hu, W., Chen, X., Lei, W., Lv, Y., Zhang, X., Si, J., & Lu, W. (2013). Investigation of radiation collection by InSb infrared focal-plane arrays with micro-optic structures. Journal of Electronic Materials, 42(11), 3181-3185. https://doi.org/10.1007/s11664-013-2712-y