Measurements of material refractive index with a circular heterodyne interferometer

Zhi-Cheng Jian; Jiun-You Lin; Po-Jen Hsieh; Der-Chin Su

doi:10.1117/12.612480

13 June 2005 Measurements of material refractive index with a circular heterodyne interferometer

Zhi-Cheng Jian, Jiun-You Lin, Po-Jen Hsieh, Der-Chin Su

Proceedings Volume 5856, Optical Measurement Systems for Industrial Inspection IV; (2005) https://doi.org/10.1117/12.612480
Event: Optical Metrology, 2005, Munich, Germany

Abstract

When a light coming from a circularly polarized heterodyne light source incidents on an optical material, a phase difference between s- and p- polarization components of the reflected light occurs. This phase difference can be measured accurately with the heterodyne interferometry. The measured data are substituted into the special equations derived from Fresnel equations, the refractive index can be estimated. This method bears both merits of a common-path interferometer and a heterodyne interferometer. The refractive indices of three optical glasses and two birefringent crystals were measured to show the validity of this method.

Citation Download Citation

Zhi-Cheng Jian, Jiun-You Lin, Po-Jen Hsieh, and Der-Chin Su "Measurements of material refractive index with a circular heterodyne interferometer", Proc. SPIE 5856, Optical Measurement Systems for Industrial Inspection IV, (13 June 2005); https://doi.org/10.1117/12.612480

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