Generation of backward terahertz waves in GaSe crystals.
Generation of backward terahertz waves in GaSe crystals.
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DOI:
10.1364/ol.30.001861
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发表时间:
2005-07
期刊:
影响因子:
3.6
通讯作者:
W. Shi;Yujie J. Ding
中科院分区:
文献类型:
--
作者:
W. Shi;Yujie J. Ding
We have observed a backward-propagating terahertz wave by mixing two coherent infrared beams in two GaSe crystals. For the 47 mm long crystal, the output wavelength can be tuned in the wide range of 167.6 to 2060 microm (0.146 to 1.79 THz), whereas the output peak power reaches 217 W. The corresponding power conversion efficiency is approximately 0.03%.