A broadband configuration for static Fourier transform spectroscopy with bandpass sampling

In this work a newbroadband staticFourier transform spectrometer  (static-FTS) configuration based on the division of thespectrum into multiple narrow-bands is proposed. This configuration not only decreases thespectrometer size but also allows operation in the traditionalspectrometer wavelength range, namely, 400 nm –1100 nm with 1 cm−1 or better resolution. This technique solves the Nyquist sampling rate issue and enables us to record high resolutionspectrums with regularCCDs. An algorithm is developed to process the signal and calculate theFourier transform of the recorded interferograms on theCCD camera.

Source: Review of Scientific Instruments - October 11, 2016 Category: Physics Authors: Behzad Sardari, Federico Davoli and Meri ç Özcan Source Type: research