کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7940645 1513196 2017 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High quantum efficiency N-structure type-II superlattice mid-wavelength infrared detector with resonant cavity enhanced design
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
High quantum efficiency N-structure type-II superlattice mid-wavelength infrared detector with resonant cavity enhanced design
چکیده انگلیسی
We propose a resonant cavity enhanced (RCE) N-structure type-II superlattice (T2SL) mid-wavelength infrared (MWIR) photodetector which can be used for the detection of methane gas at 3.3 μm. The theoretical analysis of quantum efficiency (QE) shows that the peak QE can be enhanced from 0.45 to 0.80 at 3.3 μm after 12 period AlAs0.09Sb0.91/GaSb DBR is introduced to the N-structure T2SL detector and QE exhibits the narrow bandwidth characteristic near the target wavelength. By analyzing the refractive indices of different materials and the reflectance of different DBRs, we also discuss how to determine the component materials of quarter-wavelength DBR reflectors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Superlattices and Microstructures - Volume 105, May 2017, Pages 28-33
نویسندگان
, , , , , , , , ,