Broadband Coherent Anti-Stokes Raman Scattering Spectroscopy Using Pulse-Shaper-Controlled Variable-Wavelength Soliton Pulses from a Photonic Crystal Fiber
Broadband Coherent Anti-Stokes Raman Scattering Spectroscopy Using Pulse-Shaper-Controlled Variable-Wavelength Soliton Pulses from a Photonic Crystal Fiber
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使用来自光子晶体光纤的脉冲整形器控制的可变波长孤子脉冲进行宽带相干反斯托克斯拉曼散射光谱
DOI：
10.1143/jjap.47.8825
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发表时间：
2008
影响因子：
1.5
通讯作者：
N. Karasawa
中科院分区：
文献类型：
--
作者：
K. Tada;N. Karasawa
来自光子晶体光纤（PCF）的基波孤子脉冲被用作相干反斯托克斯拉曼散射（CARS）光谱中的可变波长光脉冲，在显微镜装置中使用单个未放大的激光振荡器。通过使用脉冲整形器整形 PCF 的输入脉冲，同时控制孤子脉冲的中心波长和延迟时间，并且这些参数在测量中自动切换。该方法测量了聚合物样品500~3100 cm-1之间的宽带CARS信号，并清晰地观察到了该频率范围内样品的大部分拉曼峰。
Fundamental soliton pulses from a photonic crystal fiber (PCF) were used as variable-wavelength optical pulses in coherent anti-Stokes Raman scattering (CARS) spectroscopy using a single un-amplified laser oscillator in a microscopy setup. Both the center wavelengths and the delay times of soliton pulses were controlled simultaneously by shaping the input pulse of a PCF by the use of a pulse shaper and these parameters were switched automatically in measurement. Broadband CARS signals between 500 and 3100 cm-1 of polymer samples have been measured and the most of the Raman peaks in this frequency range of samples were observed clearly by this method.