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Chakrabarti M, Jakobsen ML, Hanson SG. Speckle-based spectrometer. Opt Lett. 2015;40(14):3264-7doi: 10.1364/OL.40.003264.
Chakrabarti, M., Jakobsen, M. L., & Hanson, S. G. (2015). Speckle-based spectrometer. Optics letters, 40(14), 3264-7. https://doi.org/10.1364/OL.40.003264
Chakrabarti, Maumita, et al. "Speckle-based spectrometer." Optics letters vol. 40,14 (2015): 3264-7. doi: https://doi.org/10.1364/OL.40.003264
Chakrabarti M, Jakobsen ML, Hanson SG. Speckle-based spectrometer. Opt Lett. 2015 Jul 15;40(14):3264-7. doi: 10.1364/OL.40.003264. PMID: 26176445.
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Opt Lett. 2015 Jul 15;40(14):3264-7. doi: 10.1364/OL.40.003264.

Speckle-based spectrometer.

Optics letters

Maumita Chakrabarti, Michael Linde Jakobsen, Steen G Hanson

PMID: 26176445 DOI: 10.1364/OL.40.003264

Abstract

A novel spectrometer concept is analyzed and experimentally verified. The method relies on probing the speckle displacement due to a change in the incident wavelength. A rough surface is illuminated at an oblique angle, and the peak position of the covariance between the speckle patterns observed in the far field with the two wavelengths reveals the wavelength change. A spectral resolution of 100 Mhz is argued to be achievable.

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