How exactly do infrared optical sensors work?
Best insight from top research papers
Infrared optical sensors work by detecting and measuring infrared radiation. These sensors use various techniques to achieve this. One approach involves using transition metal dichalcogenides in the channel layer and optical absorption structures of the sensor . Another method involves using bolometric membranes suspended above reflectors, with different dielectric layers covering the reflectors to vary their optical properties . Additionally, sensors can utilize transistors, photoelectric detectors, and reference resistors to solve issues of high dark current and low photocurrent, resulting in increased switching ratio . Another approach involves using an infrared transmitting unit, an infrared receiving unit, and an MCU module to control the transmission and collection of signals, reducing interference from light sources and preventing misoperation . Finally, an infrared sensor can detect molecular species in a liquid by generating IR light from a source, receiving it in an optical fiber with a selective ion-exchange medium, and detecting changes in the evanescent field caused by the ion species .
Answers from top 4 papers
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| Papers (4) | Insight |
|---|---|
| The provided paper does not explain how infrared optical sensors work. It focuses on an infrared sensing device and method that reduces interference from light sources. | |
| The provided paper does not explain how infrared optical sensors work. It focuses on the design and structure of a specific type of sensor using inorganic semiconductor nanowires. | |
| The provided paper is about an image sensor that includes pixels designed to detect infrared radiation. However, it does not provide specific details on how infrared optical sensors work. | |
| The provided paper does not explain how infrared optical sensors work. It only provides information about the structure and manufacturing method of an infrared optical sensor using transition metal dichalcogenides. |
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