We describe a proof-of-concept of a method for measurement of both real (refraction) and imaginary (absorption) part of
the refractive index in the infrared (IR) range by measuring an interference pattern in the visible range without the need
for any spectral and spatial selection. The concept is based on nonlinear interference of entangled photons, generated via
Spontaneous Parametric Down Conversion (SPDC). In our interferometer, the phase of the signal photon in the visible
range depends on the phase of an entangled IR photon. When the IR photon is traveling through the media of interest, its
properties can be found from the observations of the visible photon.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
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.