In-situ low-temperature high-pressure Brillouin spectral measurement system

• Main Authors: ZHANG YONGJIAN, ZHOU QIANG, ZHANG XUE, TAO QIANYU, LI FANGFEI, LI XINYANG, JIA SHUFAN, LI LIANG
• Format: Patent
• Language: Chinese; English
• Published: 14.05.2024
• Subjects: COLORIMETRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; PHYSICS; RADIATION PYROMETRY; TESTING

The invention discloses an in-situ low-temperature high-pressure Brillouin spectral measurement system, and belongs to the technical field of optical equipment. The system structurally comprises a laser (1), a Brillouin light path system (2), a vacuum high-pressure sample accommodating system (3) and a signal acquiring and processing system (4) according to a light path sequence, and the vacuum high-pressure sample accommodating system (3) is connected with the cooling system (5). The invention provides a high-pressure Brillouin measurement system capable of reaching the lowest temperature of about 10K, and accurate low-temperature and high-pressure Brillouin spectral measurement can be carried out on a sample to be measured. According to the optical path, stray light can be simply suppressed by controlling the reflection angle to be the acute angle, and the signal-to-noise ratio is ensured. According to the low-temperature and high-pressure Brillouin spectrum system researched and developed by the invention,