A new stationary imaging interferometer: first results

Alessandro Barducci; Andrea Casini; Francesco Castagnoli; Paolo Marcoionni; Ivan Pippi; Maria Sgavetti

doi:10.1117/12.504755

7 January 2004 A new stationary imaging interferometer: first results

Alessandro Barducci, Andrea Casini, Francesco Castagnoli, Paolo Marcoionni, Ivan Pippi, Maria Sgavetti

Proceedings Volume 5159, Imaging Spectrometry IX; (2004) https://doi.org/10.1117/12.504755
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

In this paper we present some laboratory measurements obtained by a new imaging interferometer. This instrument has been derived from the so called “stationary interferometers,” which do not employ any moving part to optically scan the instrument field-of-view. The device acquires the image of an object superimposed to a fixed (stationary) pattern of autocorrelation functions of the energy coming from each pixel. The interference pattern, constituted by a system of vertical fringes, is scanned by moving the observed target with respect to the imaging device. In order to calibrate the optical-path-difference axis of the raw interferograms, we have executed a set of measurements employing a He-Ne laser source spread by a pair of planar diffusers. The dependence of the optical-path-difference values on the source spectral content has been addressed performing a set of measurements after filtering a 600W halogen lamp with interference filters of 10nm bandwidth. We have described the procedure of pre-processing of the acquired data to retrieve the spectrum of at-sensor radiance (dark signal subtraction, spectral instrument response compensation, effects of vignetting and Fourier transform algorithm). Some hints are given about the use of this instrument from airborne platforms for remote sensing of the Earth.

Citation Download Citation

Alessandro Barducci, Andrea Casini, Francesco Castagnoli, Paolo Marcoionni, Ivan Pippi, and Maria Sgavetti "A new stationary imaging interferometer: first results", Proc. SPIE 5159, Imaging Spectrometry IX, (7 January 2004); https://doi.org/10.1117/12.504755

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