Infrared achromatic phase shifters using modulated total internal reflection

Dimitri Mawet; Cédric Lenaerts; Pierre Riaud; Denis Vandormael; Jérome Loicq; David Verstraeten; Karl Fleury; Serge Habraken; Jean Surdej

doi:10.1117/12.671572

28 June 2006 Infrared achromatic phase shifters using modulated total internal reflection

Dimitri Mawet, Cédric Lenaerts, Pierre Riaud, Denis Vandormael, Jérome Loicq, David Verstraeten, Karl Fleury, Serge Habraken, Jean Surdej

Author Affiliations +

Proceedings Volume 6268, Advances in Stellar Interferometry; 62682J (2006) https://doi.org/10.1117/12.671572
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

We propose a new family of achromatic phase shifters that uses the modulated total internal reflection (TIR) phenomenon. These components can be seen as enhanced Fresnel rhombs for infrared applications like nulling interferometry and polarimetry. The TIR phenomenon comes with a differential phase shift between the polarization components of the incident light. Modulating the index transition at the TIR interface allows compensating for the intrinsic material dispersion in order to make the subsequent phase shift achromatic over broad bands. The modulation can be induced by a thin film of a well-chosen medium or a subwavelength grating whose parameters are specially optimized. We present results from theoretical simulations together with preliminary fabrication outcomes.

Citation Download Citation

Dimitri Mawet, Cédric Lenaerts, Pierre Riaud, Denis Vandormael, Jérome Loicq, David Verstraeten, Karl Fleury, Serge Habraken, and Jean Surdej "Infrared achromatic phase shifters using modulated total internal reflection", Proc. SPIE 6268, Advances in Stellar Interferometry, 62682J (28 June 2006); https://doi.org/10.1117/12.671572

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