Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Refractive index and geometrical thickness measurement of a transparent pellicle in air by Gaussian beam defocusing

Not Accessible

Your library or personal account may give you access

Abstract

We demonstrate that it is possible to measure the local geometrical thickness and the refractive index of a transparent pellicle in air by combining the diffractive properties of a Gaussian beam with the analytical equations of the light that propagates through a thin layer. We show that our measurement technique is immune to inherent piston-like vibrations present in the pellicle. As our measurements are based on characterizing properly the Gaussian beam in a plane of detection, a homodyne technique for this purpose is devised and described. The feasibility of our proposal is confirmed by measuring local geometrical thicknesses and the refractive index of a commercially available stretch film.

© 2014 Optical Society of America

Full Article  |  PDF Article
More Like This
Refractive index and geometrical thickness measurement of thin optical samples by a transmitted Gaussian beam

Octavio Olvera-R, Moisés Cywiak, Joel Cervantes-L, and David Cywiak
Appl. Opt. 53(30) 6993-6998 (2014)

Air etalon facilitated simultaneous measurement of group refractive index and thickness using spectral interferometry

Ke Zhang, Li Tao, Wenkai Cheng, Jianhua Liu, and Zhongping Chen
Appl. Opt. 53(31) 7483-7486 (2014)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (16)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved