Ultrabroadband background-free coherent anti-Stokes Raman scattering microscopy based on a compact Er:fiber laser system | Zendy

Romedi Selm | Zendy; Martin Winterhalder | Zendy; Andreas Zumbusch | Zendy; Günther Krauss | Zendy; Tobias Hanke | Zendy; Alexander Sell | Zendy; Alfred Leitenstorfer | Zendy

Open Access

Ultrabroadband background-free coherent anti-Stokes Raman scattering microscopy based on a compact Er:fiber laser system

Author(s) -

Romedi Selm,

Martin Winterhalder,

Andreas Zumbusch,

Günther Krauss,

Tobias Hanke,

Alexander Sell,

Alfred Leitenstorfer

Publication year - 2010

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.35.003282

Subject(s) - raman scattering , optics , coherent anti stokes raman spectroscopy , laser , narrowband , fiber laser , microscopy , raman spectroscopy , materials science , photonic crystal fiber , physics , optoelectronics , optical fiber

We demonstrate a scheme for efficient coherent anti-Stokes Raman scattering (CARS) microscopy free of nonresonant background. Our method is based on a compact Er:fiber laser source. Impulsive excitation of molecular resonances is achieved by an 11 fs pulse at 1210 nm. Broadband excitation gives access to molecular resonances from 0 cm(-1) up to 4000 cm(-1). Time-delayed narrowband probing at 775 nm enables sensitive and high-speed spectral detection of the CARS signal free of nonresonant background with a resolution of 10 cm(-1).

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