Optomechanical detection of light with orbital angular momentum

被引：15

作者：

Kaviani, Hamidreza ^{[1
]}

Ghobadi, Roohollah ^{[1
]}

Behera, Bishnupada ^{[1
]}

Wu, Marcelo ^{[3
]}

Hryciw, Aaron ^{[2
]}

Vo, Sonny ^{[4
]}

Fattal, David ^{[4
]}

Barclay, Paul ^{[1
]}

机构：

[1] Univ Calgary, Inst Quantum Sci & Technol, Calgary, AB T2N 1N4, Canada

[2] Univ Alberta, NanoFAB Ctr, Edmonton, AB T6G 2V4, Canada

[3] NIST, Phys Measurement Lab, Gaithersburg, MD 20899 USA

[4] Leia Inc, 2440 Sand Hill Rd,STE 303, Menlo Pk, CA 94025 USA

来源：

OPTICS EXPRESS | 2020年 / 28卷 / 10期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会;

关键词：

NANOMECHANICAL RESONATORS; VORTEX BEAM; INTERFERENCE; ENTANGLEMENT; REFLECTORS; LENSES; NOISE;

D O I：

10.1364/OE.389170

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the design of an optomechanical device that allows sensitive transduction of the orbital angular momentum of light. An optically induced twist imparted on the device is detected using a photonic crystal cavity optomechanical system. This device allows the measurement of the orbital angular momentum of light when photons are absorbed by the mechanical element or the detection of the presence of photons when they are scattered into new orbital angular momentum states by a sub-wavelength grating patterned on the device. Such a system allows the detection of optical pulses with an l = 1 orbital angular momentum field that have an average photon number of 3.9 x 10(3) at a 5 MHz repetition rate, assuming that detector noise is not limiting measurement sensitivity. This scheme can be extended to higher order orbital angular momentum states. (c) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：15482 / 15496

页数：15

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