Topological insulator as an optical modulator for pulsed solid‐state lasers
2013; Wiley; Volume: 7; Issue: 6 Linguagem: Inglês
10.1002/lpor.201300084
ISSN1863-8899
AutoresHaohai Yu, Han Zhang, Yicheng Wang, Chujun Zhao, Baolin Wang, Shuangchun Wen, Huaijin Zhang, Jing Wang,
Tópico(s)Photorefractive and Nonlinear Optics
ResumoAbstract Topological insulators are states of quantum matter that have narrow topological nontrivial energy gaps and a large third‐order nonlinear optical response. The optical absorption of topological insulators can become saturated under strong excitation. In this work, with Bi 2 Se 3 as an example, it was demonstrated that a topological insulator can modulate the operation of a bulk solid‐state laser by taking advantage of its saturable absorption. The result suggests that topological insulators are potentially attractive as broadband pulsed modulators for the generation of short and ultrashort pulses in bulk solid‐state lasers, in addition to other promising applications in physics and computing.
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