Narrow-bandwidth picosecond pulses by spectral compression of femtosecond pulses in second-order nonlinear crystals.
Narrow-bandwidth picosecond pulses by spectral compression of femtosecond pulses in second-order nonlinear crystals.
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通过对二阶非线性晶体中的飞秒脉冲进行光谱压缩来获得窄带宽皮秒脉冲。
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
G. Cerullo
中科院分区：
文献类型：
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作者：
M. Marangoni;D. Brida;M. Quintavalle;G. Cirmi;F. Pigozzo;C. Manzoni;F. Baronio;A. Capobianco;G. Cerullo
我们介绍了一种简单的方法，有效地产生可调谐窄带宽皮秒脉冲同步到宽带飞秒的。在相互作用脉冲之间存在大的群速度失配的情况下，二次谐波产生将宽带基频脉冲的大部分能量转移到窄带二次谐波脉冲中。利用周期极化的化学计量比钽酸锂晶体耦合到红外光学参量放大器，我们产生了200 nJ的脉冲，光谱宽度低于8.5 cm-1和可调谐范围为720至890 nm。能量缩放和调谐范围的扩展是直接的。
We introduce a simple approach for the efficient generation of tunable narrow-bandwidth picosecond pulses synchronized to broadband femtosecond ones. Second harmonic generation in the presence of large group velocity mismatch between the interacting pulses transfers a large fraction of the energy of a broadband fundamental frequency pulse into a narrowband second harmonic one. Using a periodically poled stoichiometric lithium tantalate crystal coupled to an infrared optical parametric amplifier, we generated 200-nJ pulses with spectral width lower than 8.5 cm-1 and tunability from 720 to 890 nm. Energy scaling and extension of the tuning range are straightforward.
影响因子：
1.6
作者：
McCamant, DW;Kukura, P;Mathies, RA
通讯作者：
Mathies, RA