室温 (RT) 扩展短波红外线 (e-SWIR) 雪崩光二极管 (APD) 具有2.6微米的切断波长
Michael Benker1, Guiru Gu2, Alexander Z Senckowski3
1Department of Electrical and Computer Engineering, University of Massachusetts Dartmouth, North Dartmouth, MA 02747, USA.
Micromachines
|August 29, 2024
概括
我们开发了高灵敏度的扩展短波红外 (e-SWIR) 雪崩光二极管 (APD),在室温下工作. 这些e-SWIR APD实现了2.6微米的检测波长,从而实现了先进的传感应用.
科学领域:
- 光电学是指光电子产品.
- 半导体物理 半导体物理
- 材料科学 材料科学 材料科学
背景情况:
- 高灵敏的红外光探测器对于各种传感和成像应用至关重要.
- 现有的技术往往需要冷制冷,这限制了它们的实际使用.
研究的目的:
- 开发扩展短波红外 (e-SWIR) 雪崩光二极管 (APD),在室温 (RT) 上有效工作.
- 扩展APD的检测波长,以增强红外传感能力.
主要方法:
- 在0.3Ga0.7As0.25Sb0.75/GaSb中使用具有较高成分的异构结构,用于延长波长检测.
- 在GaSb基板上采用网格匹配的异构结构,以确保高质量的材料.
- 设备性能特征包括检测频谱,噪声电流,乘法增益和RT时的光响应性.
主要成果:
- 成功地将检测切断波长延长到RT的2.6μm,通过FTIR测量进行验证.
- 使用2.3微米DFB激光,在低偏差 (-2.5V) 时获得了高倍增效益 (M~190) .
- 在RT和低偏差下显示出高光响应性 (R>140 A/W).
- 标识噪声电流为射击噪声,在RT时受到限制.
结论:
- 开发了使用In0.3Ga0.7As0.25Sb0.75/GaSb异构的室温操作的e-SWIR APD.
- 高内部增益和RT操作为e-SWIR传感和成像提供了启用技术.
- 这些APD在红外应用中显著降低了尺寸,重量和功耗 (SWaP).
相关概念视频
01:26Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
200
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
200
01:25IR Spectrometers
1.1K
There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
1.1K