Journal
OPTICS EXPRESS
Volume 19, Issue 2, Pages 770-778Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.000770
Keywords
-
Categories
Funding
- Academy of Finland [129155, 128420]
- National Basic Research Program of China [2007CB935303]
- Academy of Finland (AKA) [128420, 129155, 129155, 128420] Funding Source: Academy of Finland (AKA)
Ask authors/readers for more resources
The performance of infrared (IR) dual-band detector can be substantially improved by simultaneously increasing IR absorptions for both sensor bands. Currently available methods only provide absorption enhancement for single spectral band, but not for the dual-band. The Fabry-Perot (FP) cavity generates a series of resonances in multispectral bands. With this flexibility, we introduced a novel type of dual-band detector structure containing a multilayer FP cavity with two absorbing layers and a subwavelength-period grating mirror, which is capable of simultaneously enhancing the middle wave infrared (MWIR) and the long wave infrared (LWIR) detection. Compared with the bare-absorption-layer detector (common dual-band detector), the optimized FP cavity can provide about 13 times and 17 times absorption enhancement in LWIR and MWIR bands respectively. (C)2011 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available