Interferometric system with resolution better than coherence length for determination of geometrical thickness and refractive index of a layer object

Dmitry V. Lyakin; Mickail I. Lobachev; Vladimir P. Ryabukho; Valery V. Tuchin

doi:10.1117/12.477798

8 July 2003 Interferometric system with resolution better than coherence length for determination of geometrical thickness and refractive index of a layer object

Dmitry V. Lyakin, Mickail I. Lobachev, Vladimir P. Ryabukho, Valery V. Tuchin

Author Affiliations +

Proceedings Volume 4956, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VII; (2003) https://doi.org/10.1117/12.477798
Event: Biomedical Optics, 2003, San Jose, CA, United States

Abstract

The idea of a new low coherence interferometric system with axial resolution better than coherence length providing simultaneous measurement of the geometrical thickness and refractive index of transparent layers by sharp focusing of light on the measured object is considered. The presented interferometric system consists of two parts -- the so-called Wave Front Matching Interferometer (WFMI) and a low coherence Michelson interferometer (LCMI) as a light source for the first. The WFMI provides high separation of interference signal peaks from demarcations in layer object at high numerical aperture focusing of light on the object. The tandem optical scheme of these interferometers allows to make this system very compact and mobile.

Citation Download Citation

Dmitry V. Lyakin, Mickail I. Lobachev, Vladimir P. Ryabukho, and Valery V. Tuchin "Interferometric system with resolution better than coherence length for determination of geometrical thickness and refractive index of a layer object", Proc. SPIE 4956, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VII, (8 July 2003); https://doi.org/10.1117/12.477798

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available