Open AccessLaser thermal lens measurement based on Newton ring interferometry
Author(s) -
Lei Qi,
Jinzhi Huang,
Shuyun Zhan,
Weici Liu,
Hongjie Zhu,
Yuwang Liu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1678/1/012048
Subject(s) - lens (geology) , interferometry , laser , optics , thermal , materials science , sensitivity (control systems) , electronics , ring (chemistry) , deformation (meteorology) , limit (mathematics) , physics , engineering , electronic engineering , electrical engineering , chemistry , composite material , meteorology , mathematical analysis , mathematics , organic chemistry
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.