Observation of enhanced two-photon absorption in ZnS quantum dots at an ultraviolet wavelength

Observation of enhanced two-photon absorption in ZnS quantum dots at an ultraviolet wavelength

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摘要 Two-photon absorption （2PA） in zinc sulphide （ZnS） and Mn2＋-doped ZnS quantum dots is reported by the z-scan technique, with nanosecond pulsed laser radiation at 355 nm. The observed values of the 2PA cross section of all the samples are 105 times larger than that of bulk ZnS. Two-photon absorption （2PA） in zinc sulphide （ZnS） and Mn2＋-doped ZnS quantum dots is reported by the z-scan technique, with nanosecond pulsed laser radiation at 355 nm. The observed values of the 2PA cross section of all the samples are 105 times larger than that of bulk ZnS.

作者 P.Kumbhakar M.Chattopadhyay R.Sarkar U.Chatterjee

机构地区 Nanoscience Laboratory Laser Laboratory

出处《Chinese Optics Letters》 SCIE EI CAS CSCD 2011年第10期63-66,共4页 中国光学快报（英文版）

基金 supported by the DST of the Government of India under Grant No. SR/FTP/PS-67/2008

关键词 ZNS QDS

分类号 O431.2 [机械工程—光学工程]

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Observation of enhanced two-photon absorption in ZnS quantum dots at an ultraviolet wavelength

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