A GaN/AlN quantum cascade detector with a broad response from the mid-infrared (4.1μm) to the visible (550nm) spectral range
A GaN/AlN quantum cascade detector with a broad response from the mid-infrared (4.1μm) to the visible (550nm) spectral range
复制标题
GaN/AlN 量子级联探测器，具有从中红外 (4.1-μm) 到可见光 (550-nm) 光谱范围的广泛响应
DOI：
10.1063/5.0003615
复制
发表时间：
2020-04-27
影响因子：
4
通讯作者：
Wang, X. Q.
中科院分区：
文献类型：
--
作者：
Quach, P.;Liu, S. F.;Wang, X. Q.
We report on a GaN/AlN quantum cascade detector operating in an extended spectral range going from the mid-infrared to visible wavelengths. This broadband detection is achieved thanks to the design of active quantum wells supporting five bound-to-bound intersubband transitions. The photodetector exhibits a broad signal between 4.1 μm and 550 nm. The photocurrent persists up to room temperature. The calibrated responsivity at 77 K under irradiation through a 45° angle polished facet amounts to 7 μA/W at a wavelength of 633 nm and is peaked at 14 μA/W at a wavelength of 720 nm.
