期刊
SCIENTIFIC REPORTS
卷 11, 期 1, 页码 -出版社
NATURE RESEARCH
DOI: 10.1038/s41598-021-87355-z
关键词
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资金
- Academy of Finland [298463, 318082, PREIN 320165]
- French Agence Nationale de la Recherche [ANR-15-IDEX-0003, ANR-17-EURE-0002]
Computational spectral-domain ghost imaging is demonstrated by encoding complementary Fourier patterns onto the spectrum of a superluminescent laser diode, increasing signal-to-noise ratio and reducing parasitic light effects. This method has broad applications in remote broadband spectral measurements.
We demonstrate computational spectral-domain ghost imaging by encoding complementary Fourier patterns directly onto the spectrum of a superluminescent laser diode using a programmable spectral filter. Spectral encoding before the object enables uniform spectral illumination across the beam profile, removing the need for light collection optics and yielding increased signal-to-noise ratio. In addition, the use of complementary Fourier patterns allows reduction of deleterious of parasitic light effects. As a proof-of-concept, we measure the wavelength-dependent transmission of a Michelson interferometer and a wavelength-division multiplexer. Our results open new perspectives for remote broadband spectral measurements.
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