Two-photon pumped lasing in a single CdS microwire

被引：23

作者：

Zhang, Lichao ^{[1
,2
]}

Wang, Kai ^{[1
,2
,3
]}

Liu, Zhe ^{[1
,2
]}

Yang, Guang ^{[1
,2
]}

Shen, Guozhen ^{[1
,2
]}

Lu, Peixiang ^{[1
,2
,3
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China

[3] Minist Educ, Key Lab Fundamental Phys Quant Measurement, Wuhan 430074, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 21期

关键词：

ROOM-TEMPERATURE; QUANTUM DOTS; NANORIBBONS; MODES;

D O I：

10.1063/1.4809537

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the two-photon absorption induced lasing performance in a single CdS microwire under the excitation of a femtosecond pulse laser with a wavelength of 800 nm. Sharp lasing peaks are centered at 523 nm with an average linewidth of 0.4 nm, indicating a high quality factor of 1300. The lasing emission is highly dependent on the polarization direction of the excitation light and the optimized lasing threshold is estimated to be 3.3 mJ/cm(2) as the polarization direction is parallel to the microwire axis. Furthermore, the polarization-dependent lasing effect is confirmed by performing the finite-difference time-domain method. (C) 2013 AIP Publishing LLC.

引用

页数：4

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