Generation of doughnutlike vortex beam with tunable orbital angular momentum from lasers with controlled Hermite-Gaussian modes

Shu Chun Chu, Takayuki Ohtomo, Kenju Otsuka

研究成果: Article同行評審

35 引文 斯高帕斯(Scopus)

摘要

This study demonstrates successive higher-order Hermite-Gaussian (HG 0,m) mode operations in a microchip solid-state laser with a controlled off-axis laser diode (LD) pumping and generation of the corresponding doughnutlike laser beam of tunable ring diameter and orbital angular momentum, by experimentally focusing a Hermite-Gaussian mode (HGM) lasing beam into an astigmatic mode converter (AMC) with a mode-matching lens. Based on the successful generation of stable doughnutlike vortex beams by combining the LD off-axis pumping of microchip lasers and an AMC, this study proposes a design for a compact, solid doughnutlike vortex laser beam generator that combines three elements (i.e., laser cavity, mode-matching lens, and AMC) into one practical device. The desired doughnutlike vortex beam with different orbital angular momentum is easily generated by simply controlling the lateral off-axis pump position and pump beam shape on the laser crystal by numerical simulation.

原文English
頁(從 - 到)2583-2591
頁數9
期刊Applied optics
47
發行號14
DOIs
出版狀態Published - 2008 5月 10

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學
  • 工程(雜項)
  • 電氣與電子工程

指紋

深入研究「Generation of doughnutlike vortex beam with tunable orbital angular momentum from lasers with controlled Hermite-Gaussian modes」主題。共同形成了獨特的指紋。

引用此