Ultrafast control of vortex microlasers

被引：676

作者：

Huang, Can ^{[1
]}

Zhang, Chen ^{[1
]}

Xiao, Shumin ^{[1
,2
]}

Wang, Yuhan ^{[1
]}

Fan, Yubin ^{[1
]}

Liu, Yilin ^{[1
]}

Zhang, Nan ^{[1
]}

Qu, Geyang ^{[1
]}

Ji, Hongjun ^{[1
]}

Han, Jiecai ^{[2
]}

Ge, Li ^{[3
,4
]}

Kivshar, Yuri ^{[5
]}

Song, Qinghai ^{[1
,6
]}

机构：

[1] Harbin Inst Technol, Key Lab MicroNano Optoelect Informat Syst, Minist Ind & Informat Technol, Shenzhen Grad Sch,State Key Lab Tunable Laser Tec, Shenzhen 518055, Peoples R China

[2] Harbin Inst Technol, Natl Key Lab Sci & Technol Adv Composites Special, Harbin 150080, Peoples R China

[3] CUNY, Grad Ctr, New York, NY 10016 USA

[4] CUNY, Coll Staten Isl, Dept Phys & Astron, Staten Isl, NY 10314 USA

[5] Australian Natl Univ, Res Sch Phys, Nonlinear Phys Ctr, Canberra, ACT 2601, Australia

[6] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China

来源：

SCIENCE | 2020年 / 367卷 / 6481期

基金：

澳大利亚研究理事会; 美国国家科学基金会;

关键词：

ORBITAL ANGULAR-MOMENTUM; BOUND-STATES; LIGHT; LASER; GENERATION;

D O I：

10.1126/science.aba4597

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The development of classical and quantum information-processing technology calls for on-chip integrated sources of structured light. Although integrated vortex microlasers have been previously demonstrated, they remain static and possess relatively high lasing thresholds, making them unsuitable for high-speed optical communication and computing. We introduce perovskite-based vortex microlasers and demonstrate their application to ultrafast all-optical switching at room temperature. By exploiting both mode symmetry and far-field properties, we reveal that the vortex beam lasing can be switched to linearly polarized beam lasing, or vice versa, with switching times of 1 to 1.5 picoseconds and energy consumption that is orders of magnitude lower than in previously demonstrated all-optical switching. Our results provide an approach that breaks the long-standing trade-off between low energy consumption and high-speed nanophotonics, introducing vortex microlasers that are switchable at terahertz frequencies.

引用

页码：1018 / +

页数：27

共 35 条

[1] ORBITAL ANGULAR-MOMENTUM OF LIGHT AND THE TRANSFORMATION OF LAGUERRE-GAUSSIAN LASER MODES [J].