Featured Experimental Platform #3 Single Photon Microscopy Temperature Measurement

Release date: 2025-05-16
Visits: 28
Source: 山东高等技术研究院
Single Photon Microscopy Temperature Measurement
The accuracy and reliability of temperature measurements are important in extremely low-temperature environments. However, traditional temperature sensors face limitations in nano- and micro-scale applications due to self-heating effects and potential material damage caused by contact-based measurements. This makes the development of high-precision, non-contact temperature measurement technologies an essential advancement for such specialized applications. The single-photon temperature measurement platform is a significant advancement in single-photon technologies. It performs critical functions, such as noise temperature measurement across various ranges, precise calibration of resistance temperature detectors, and thermal imaging in cryogenic environments. Utilizing photon entanglement, it minimizes shot noise, enabling highly sensitive temperature measurements under low-temperature conditions. 


The platform utilizes optical interferometers to detect changes in the mechanical vibration of nanofilms, which are used to calculate temperature variations. As temperature changes, the vibrational frequency shifts correspondingly, and the system's optomechanical sensors efficiently capture these subtle deviations. The ability to perform wide-area, non-contact measurements improves stability and reduces external interference. Furthermore, the single-photon counting method maintains a high signal-to-noise ratio, even in ultra-low light conditions, ensuring superior measurement accuracy. By integrating single-photon imaging with optomechanical sensing, this platform overcomes the limitations of traditional techniques, achieving exceptional precision in temperature measurement and thermometer calibration in cryogenic environments.