Cooled Detector is a type of sensor or instrument used in different fields, including spectroscopy, astronomy, and infrared imaging. It is equipped with a cooling mechanism, such as a thermoelectric cooler or cryogenic system, for reducing the temperature of the detector element. Cooling enhances the detector's sensitivity and reduces noise, which allows it to detect faint signals or radiation with higher accuracy. Cooled Detector is commonly employed in scientific research and industrial applications where precise and low- noise measurements are important to capture and analyze data from weak or distant sources, hence contributing to advancements in different scientific disciplines and technology development.