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Fiber-dispersive Raman spectrometer with single-photon sensitivity

Sidorova, Mariia and Pavlov, Sergey and Semenov, Alexey and Gensch, Michael and Hübers, Heinz-Wilhelm (2021) Fiber-dispersive Raman spectrometer with single-photon sensitivity. Optics Express, 29 (13/21), pp. 20941-20951. Optical Society of America. doi: 10.1364/OE.425492. ISSN 1094-4087.

Full text not available from this repository.

Official URL: https://doi.org/10.1088/1361-6668/abef7d

Abstract

The two major challenges in Raman spectroscopy are the low intensity of spontaneous Raman scattering and often accompanying fluorescence. We overcome these two issues with a novel fiber-dispersive Raman spectrometer utilizing a superconducting nanowire single-photon detector (SNSPD). By exploiting chromatic dispersion in the fiber material, we temporally stretched Raman scattered light pulses and performed correlated measurements in the time domain, where the two emission processes, Raman scattering and fluorescence, can be effectively separated. The spectrometer greatly benefits from SNSPD metrics due to its broad spectral sensitivity (from UV to near-IR wavelength range) on a single-photon level and high temporal resolution (timing jitter) that outperform those of competing avalanche single-photon detectors. The spectral resolution achievable with a fiber-dispersive spectrometer for the best trade-off between its components is estimated to be as good as 2.6 - 10 cm−1 over the Stokes shifted range up to 4400 cm−1 with an excitation wavelength of 785 nm and 4.8 - 5.2 cm−1 covering the same range with an excitation wavelength of 532 nm.

Item URL in elib:https://elib.dlr.de/146607/
Document Type:Article
Title:Fiber-dispersive Raman spectrometer with single-photon sensitivity
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Sidorova, MariiaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pavlov, SergeyUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Semenov, AlexeyUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gensch, MichaelUNSPECIFIEDhttps://orcid.org/0000-0001-7755-1618UNSPECIFIED
Hübers, Heinz-WilhelmUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:18 June 2021
Journal or Publication Title:Optics Express
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:29
DOI:10.1364/OE.425492
Page Range:pp. 20941-20951
Publisher:Optical Society of America
ISSN:1094-4087
Status:Published
Keywords:Raman effect, spectrometer, single-photon detector
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Detectors for optical instruments
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Semenov, Prof.Dr. Alexey
Deposited On:02 Dec 2021 10:18
Last Modified:24 May 2022 23:47

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