Laser thermal lens measurement based on Newton ring interferometry. (November 2020)

• Record Type: Journal Article
• Authors: Qi, Lei; Huang, Jinzhi; Zhan, Shuyun; Liu, Weici; Zhu, Hongjie; Liu, Yuwang
• Is Part Of: Journal of physics. Volume 1678(2020)
• Publication Date: 2020-11
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1678/1/012048
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Thermal lens technology has attracted much attention because of its high sensitivity, low detection limit and being suitable for the analyses of minute samples. Thermal lens technology has been widely used in many fields, such as chemistry, physics, environmental monitoring, electronics, material science and life science. In this paper, the laser thermal lens measurement is studied based on Newton's ring interferometry, especially for the case of low-power laser. The application of this method in the measurement of small samples is also discussed. It is helpful to study the micro deformation of thin film and lens under low power laser at room temperature. The results are very important for the future research on the micro deformation of optical elements.