Optical nonlinearity engineering of a bismuth telluride saturable absorber and application of a pulsed solid state laser therein
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Using a spin coating–coreduction approach, a Bi2Te3 saturable absorber with a high purity and a controllable thickness was successfully prepared. The clear thickness-dependent optical nonlinearity of a topological insulator is observed and discussed for the first time.
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2014 ◽
Vol 11
(8)
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pp. 085801
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2020 ◽
Vol 125
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pp. 105960
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