Optimal spectral phase control of femtosecond laser-induced up-conversion luminescence in Sm^3+:NaYF4 glass  

作　　者：Jian-Ping Li Lian-Zhong Deng Ye Zheng Peng-Peng Ding Tian-Qing Jia Zhen-Rong Sun Jian-Rong Qiu Shi-An Zhang 

机构地区：[1]State Key Laboratory of Precisicm Spectroscopy,School of Physics and Electronic Science,East China Normal University,Shanghai 200062,China [2]State Key Laboratory of Modem Optical Instrumentation,College of Optical Science and Engineering,Zhejiang University,Hangzhou 310027,China [3]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China

出　　处：《Frontiers of physics》2020年第2期63-68,共6页物理学前沿（英文版）

基　　金：the Na-tional Natural Science Foundation of China(Grant Nos.91850202,11774094,11727810,11804097,and 61720106009);the Science and Technology Commission of Shanghai Municipality(Grant No.17ZR146900);the China Postdoctoral Science Foundation(Grant No.2018M641958);ECNU Academic Innovation Promotion Program for Excellent Doctoral Students(Grant No.YBNLTS2019-011).

摘　　要：The spectral phase of the femtosecond laser field is an important parameter that affects the up-conversion(UC)luminescence efficiency of dopant lanthanide ions.In this work,we report an experi-mental study on controlling the UC lmiiinescence efficiency in Sm^3+:NaYF4 glass by 800-nm femtosec-ond laser pulse shaping using spectral phase modulation.The optimal phase control strategy efficiently enhances or suppresses the UC luminescence intensity.Based on the laser-power dependence of the UC luminescence intensity and its comparison with the luminescence spectrum under direct 266-nm fem-tosecond lciser irradiation,we propose herein an excitation model combining non-resonant two-photon absorption with resonance-media ted three-photon absorption to explain the experimental observations.

关 键 词：UP-CONVERSION luminescence rare earth ions quantum control FEMTOSECOND laser SPECTRAL phase 

分 类 号：O437[机械工程—光学工程]