Enhancement of coherent anti-Stokes Raman signal via tailored probing in spectral focusing

被引：19

作者：

Brueckner, Lukas ^{[1
]}

Buckup, Tiago ^{[1
]}

Motzkus, Marcus ^{[1
]}

机构：

[1] Inst Phys Chem, D-69120 Heidelberg, Germany

来源：

OPTICS LETTERS | 2015年 / 40卷 / 22期

关键词：

SCATTERING MICROSCOPY; RESOLUTION SPECTROSCOPY; NONLINEAR SPECTROSCOPY; CHIRPED PULSES; LASER-PULSES; MICROSPECTROSCOPY; SETUP; TIME;

D O I：

10.1364/OL.40.005204

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel approach for spectral focusing using a single-beam coherent anti-Stokes Raman scattering setup with a pulse shaper controlling the phase and amplitude is presented. By identifying the frequencies acting as the pump, Stokes, and probe, the high degree of control can be exploited in order to specifically and independently tailor the spectral region to act only as probe to achieve the highest signal intensity. While maintaining the optimal excitation of the vibrational coherence, a signal increase by a factor of six in comparison with usual spectral focusing schemes is readily obtained. The signal improvement and contrast is demonstrated on human skin tissue. (C) 2015 Optical Society of America

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收藏

页码：5204 / 5207

页数：4

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