Towards quantum-enhanced Raman spectroscopy for bioimaging applications

Mikael Lassen, Oleksii Ilchenko, Ulrik Andersen, Michael Fritzsche, Maria Chekhova, Mark Kriegsmann, Aleksander Rebane

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Abstract

In the QuantERA project QURAMAN (Quantum Raman) are we aiming for a combination of breakthroughs and improvements of existing components and already existing setups for building a commercial quantum Raman microscope. By combining the project partners’ expertise and skills in quantum optics, nonlinear optics, Raman spectroscopy and medical device design we will develop the next-generation Raman microscope for bio-imaging with quantum-enhanced sensitivity. The background knowledge and idea behind the QuRAMAN project is described in our recent publications (Optica 7, 470-475 (2020)). Where we have demonstrated that the use of continuous wave (CW) squeezed light can improve the SNR of weak Raman signals. However, to beat the performance of state-of-the-art SRS microscopes by means of squeezed light, one must employ amplitude squeezed picosecond pulses in a strongly focusing configuration (using an objective with a numerical aperture above unity). This will enable the imaging of weak Raman features and will push the Raman technology beyond the state of the art by applying pulsed amplitude squeezed light for signal enhancement.
Original languageEnglish
Title of host publicationQuantum Sensing, Imaging, and Precision Metrology : Proceedings of SPIE
EditorsJacob Scheuer, Selim M. Shahriar
Number of pages6
Volume12447
PublisherSPIE - International Society for Optical Engineering
Publication date2023
Article number124471E
DOIs
Publication statusPublished - 2023
EventSPIE Quantum West 2023 - Moscone center San Francisco, San Francisco, United States
Duration: 28 Jan 20233 Feb 2023

Conference

ConferenceSPIE Quantum West 2023
LocationMoscone center San Francisco
Country/TerritoryUnited States
CitySan Francisco
Period28/01/202303/02/2023
SponsorSPIE
SeriesProceedings of SPIE - The International Society for Optical Engineering
ISSN0277-786X

Keywords

  • Quantum sensing
  • Raman spectroscopy
  • Bioimaging
  • Squeezed light

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