A Femtosecond Stimulated Raman Loss (fSRL) microscope for highly sensitive bond-selective imaging

  • Delong Zhang
  • , Mikhail N. Slipchenko
  • , Shuhua Yue
  • , Junjie Li
  • , Ji Xin Cheng*
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We demonstrate nonlinear vibrational imaging of isolated Raman bands by detecting femtosecond pulse stimulated Raman loss. Femtosecond pulse excitation produces a stimulated Raman loss signal that is 12 times larger than what picosecond pulse excitation produces. The strong signal allowed real-time, bond-selective imaging of deuterated palmitic acid-d31 inside live cells, and 3D sectioning of fat storage in live C. elegans. With the high peak power provided by femtosecond pulses, this system is highly compatible with other nonlinear optical modalities such as two-photon excited fluorescence. With most of the excitation power contributed by the Stokes beam in the 1.0 - 1.2 μm wavelength range, photodamage of biological samples was not observed.

Original languageEnglish
Title of host publicationMultiphoton Microscopy in the Biomedical Sciences XI
DOIs
StatePublished - 2011
Externally publishedYes
EventMultiphoton Microscopy in the Biomedical Sciences XI - San Francisco, CA, United States
Duration: 23 Jan 201125 Jan 2011

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7903
ISSN (Print)1605-7422

Conference

ConferenceMultiphoton Microscopy in the Biomedical Sciences XI
Country/TerritoryUnited States
CitySan Francisco, CA
Period23/01/1125/01/11

Keywords

  • Coherent Raman scattering
  • Femtosecond laser
  • Lipid
  • Multimodal imaging
  • Nonlinear microscopy
  • Stimulated Raman scattering (SRS)

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