Method for measuring small optical absorption coefficients with use of a Shack–Hartmann wave-front detector - Archive ouverte HAL Access content directly
Journal Articles Applied optics Year : 2003

Method for measuring small optical absorption coefficients with use of a Shack–Hartmann wave-front detector

Abstract

We present a method for measuring absorption at the 1x10^(-5) cm^(-1) level in high-quality opticalmaterials. Using a Shack–Hartmann wave-front detector, thermal lensing in these materials may bemeasured. Then, the absorption coefficient may be estimated by fitting the observed deformation to athermal lensing model based on the temperature dependences of the refractive index and the thermalexpansion coefficient. For a particular sample of fused silica, the absorption coefficient was determinedto be 1.8±0.4x10^(-5) cm^(-1). Obtaining this result requires a resolution in the optical path length betterthan ±0.1 nm.
Fichier principal
Vignette du fichier
fsi_resubmit.pdf (185.25 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-01092277 , version 1 (08-12-2014)

Identifiers

  • HAL Id : hal-01092277 , version 1

Cite

Sanichiro Yoshida, David H. Reitze, David B. Tanner, Justin D. Mansell. Method for measuring small optical absorption coefficients with use of a Shack–Hartmann wave-front detector. Applied optics, 2003, 42 (24), pp.4835-4840. ⟨hal-01092277⟩
37 View
388 Download

Share

Gmail Facebook X LinkedIn More