All-optical switching in 3,3-dlethyl-2,2-thiatricarbocyanine Iodide dye molecules-中国期刊网

摘要 All-opticalswitchinghasbeentheoreticallyanalyzedinthe3,3'-diethyl-2,2'-thiatricarbocyanineiodide(DTTCI)carbocyaninedyethatexhibitslargeexcited-stateabsorptiontoachievehighcontrastandfastswitching.Switchinghasbeenanalyzedbothnsandpspumppulsewidths.Itisshownthatthereisanoptimumvalueofconcentrationforgivenpeakpumpintensityatwhichmaximummodulationcanbeachieved.Wecanget93.84%modulationoftransmissionofaCWprobelaserbeamat532nmatpeakpumpingintensityof500kW/cm2at763nm,with?t=1nsandconcentrationof80μMinalcohol,resultinginswitch-offandontimeof2nsand8ns,respectively.Theresultshavebeenalsousedtodesignall-opticalNOTandtheuniversalNORandNANDlogicgateswithmultiplepumplaserpulses.

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All-optical switching in 3,3-dlethyl-2,2-thiatricarbocyanine Iodide dye molecules

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All-optical switching in 3,3-dlethyl-2,2-thiatricarbocyanine Iodide dye molecules

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