Abstract

In this paper we suggest a new optical technique, moire deflectometry, for V-T relaxation rate studies in gases. By using this technique we map the thermal lens induced by absorption of an infrared laser radiation. We have shown that the thermal lens is significantly broader compared to the pump beam profile. We also show that measurement far from the beam axis provides a better bound to the relaxation time than an on-axis measurement.

© 1984 Optical Society of America

Analysis of 3-D phase objects by moire deflectometry

Josef Stricker
Appl. Opt. 23(20) 3657-3659 (1984)

Thermal lensing analysis of alexandrite laser rods by moire deflectometry

L. Horowitz, Yehuda B. Band, Oded Kafri, and D. F. Heller
Appl. Opt. 23(14) 2229-2231 (1984)

Temperature mapping in flames by moire deflectometry

E. Bar-Ziv, S. Sgulim, O. Kafri, and E. Keren
Appl. Opt. 22(5) 698-705 (1983)

Experimental investigation of thermal effects in laser-nanofluid interaction by moiré technique

Shahrzad Shahrabi Farahani, Khosro Madanipour, and Ata Koohian
Appl. Opt. 56(31) 8664-8668 (2017)

Measurements of temperature distribution of flames by moire deflectometry

E. Keren, E. Bar-Ziv, I. Glatt, and O. Kafri
Appl. Opt. 20(24) 4263-4266 (1981)