Real-time OAM cross-correlator based on a single-pixel detector HOBBIT system

被引：4
作者：
Dai, Kunjian [1 ]
Miller, J. Keith [1 ]
Johnson, Eric G. [1 ]
机构：
[1] Clemson Univ, Microphoton Lab, Holcombe Dept Elect & Comp Engn, Ctr Opt Mat Sci & Engn Technol COMSET, Clemson, SC 29634 USA
来源：
OPTICS EXPRESS | 2020年 / 28卷 / 26期
关键词：
ORBITAL ANGULAR-MOMENTUM; SPECTRUM; LIGHT; BEAMS;
D O I：
10.1364/OE.413143
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The creation and detection of spatial modes of light with transient orbital angular momentum (OAM) properties is of critical importance in a number of applications in sensing and light matter interactions. Most methods are limited in their frequency response as a result of their modulation techniques. In this paper, a new method is introduced for the coherent detection of transient properties of OAM using a single pixel detector system for the creation of an OAM spectrogram. This technique is based on the ideas utilized in acousto-optic based optical correlators with log-polar optical elements for the creation and detection of higher order bessel beams integrated in time (HOBBIT) at MHz data rates. Results are provided for beams with time varying OAM, coherent combinations, and transient scattering by phase objects. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：39277 / 39287
页数：11
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