High-Performance Infrared Photodetectors Based on AlInAsSb Digital Alloy Materials System

Dekang Chen
The mid-wave infrared (MWIR) spectrum, typically referring to the wavelength range of 2 - 5 µm, has the potential to enable next-generation breakthroughs in photonics applications. Therefore, high-performance photodetectors that operate in this range are of high interest. However, high signal-to-noise ratio (SNR), a critical figure of merit for photodetectors, is extremely difficult to achieve in the MWIR range. The challenge is twofold, one is the low signal power level, determined by the application scenario...
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