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Phase-sensitive detection in Raman tweezers
- Source :
- Applied Physics Letters. 89:261116
- Publication Year :
- 2006
- Publisher :
- AIP Publishing, 2006.
-
Abstract
- The authors discuss on a method to acquire the Raman spectrum of a single optically trapped particle. The method makes use of two laser beams: the first laser traps the particle and moves it back and forth in a plane perpendicular to the laser beam propagation; a second laser acts as Raman probe and it is fixed in space. The Raman spectrum is obtained by phase detecting the backscattered Raman photons using a lock-in amplifier. Within this approach, the background due to the scattering of the environment is completely removed. The authors apply this method to 4.25μm diameter polystyrene beads in aqueous solution.
- Subjects :
- Materials science
Physics and Astronomy (miscellaneous)
business.industry
Physics::Optics
Laser
law.invention
symbols.namesake
X-ray Raman scattering
Optics
Raman cooling
law
Tweezers
symbols
Optoelectronics
Physics::Atomic Physics
Coherent anti-Stokes Raman spectroscopy
Laser power scaling
business
Raman spectroscopy
Raman scattering
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 89
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi.dedup.....24b11f7133ed4c28b0bf35f4566876ab
- Full Text :
- https://doi.org/10.1063/1.2424674