中国物理B ›› 2016, Vol. 25 ›› Issue (2): 23201-023201.doi: 10.1088/1674-1056/25/2/023201

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Up-conversion luminescence polarization control in Er3+-doped NaYF4 nanocrystals

Hui Zhang(张晖), Yun-Hua Yao(姚云华), Shi-An Zhang(张诗按), Chen-Hui Lu(卢晨晖), Zhen-Rong Sun(孙真荣)   

  1. 1. Institute of Science, Information Engineering University, Zhengzhou 450001, China;
    2. State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China;
    3. College of Mechanical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
  • 收稿日期:2015-08-08 修回日期:2015-10-09 出版日期:2016-02-05 发布日期:2016-02-05
  • 通讯作者: Shi-An Zhang E-mail:sazhang@phy.ecnu.edu.cn
  • 基金资助:
    Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 11304396), the National Natural Science Foundation of China (Grant Nos. 11474096 and 51132004), and the Shanghai Municipal Science and Technology Commission, China (Grant No. 14JC1401500).

Up-conversion luminescence polarization control in Er3+-doped NaYF4 nanocrystals

Hui Zhang(张晖)1, Yun-Hua Yao(姚云华)2, Shi-An Zhang(张诗按)2, Chen-Hui Lu(卢晨晖)3, Zhen-Rong Sun(孙真荣)2   

  1. 1. Institute of Science, Information Engineering University, Zhengzhou 450001, China;
    2. State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China;
    3. College of Mechanical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
  • Received:2015-08-08 Revised:2015-10-09 Online:2016-02-05 Published:2016-02-05
  • Contact: Shi-An Zhang E-mail:sazhang@phy.ecnu.edu.cn
  • Supported by:
    Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 11304396), the National Natural Science Foundation of China (Grant Nos. 11474096 and 51132004), and the Shanghai Municipal Science and Technology Commission, China (Grant No. 14JC1401500).

摘要: We propose a femtosecond laser polarization modulation scheme to control the up-conversion (UC) luminescence in Er3+-doped NaYF4 nanocrystals dispersed in the silicate glass. We show that the UC luminescence can be suppressed when the laser polarization is changed from linear through elliptical to circular, and the higher repetition rate will yield the lower control efficiency. We theoretically analyze the physical control mechanism of the UC luminescence polarization modulation by considering on- and near-resonant two-photon absorption, energy transfer up-conversion, and excited state absorption, and show that the polarization control mainly comes from the contribution of near-resonant two-photon absorption. Furthermore, we propose a method to improve the polarization control efficiency of UC luminescence in rare-earth ions by applying a two-color femtosecond laser field.

关键词: up-conversion luminescence, laser polarization, nanocrystal

Abstract: We propose a femtosecond laser polarization modulation scheme to control the up-conversion (UC) luminescence in Er3+-doped NaYF4 nanocrystals dispersed in the silicate glass. We show that the UC luminescence can be suppressed when the laser polarization is changed from linear through elliptical to circular, and the higher repetition rate will yield the lower control efficiency. We theoretically analyze the physical control mechanism of the UC luminescence polarization modulation by considering on- and near-resonant two-photon absorption, energy transfer up-conversion, and excited state absorption, and show that the polarization control mainly comes from the contribution of near-resonant two-photon absorption. Furthermore, we propose a method to improve the polarization control efficiency of UC luminescence in rare-earth ions by applying a two-color femtosecond laser field.

Key words: up-conversion luminescence, laser polarization, nanocrystal

中图分类号:  (Coherent control of atomic interactions with photons)

  • 32.80.Qk
33.80.-b (Photon interactions with molecules) 61.46.Hk (Nanocrystals)