Toward the generation of broadband optical vortices: extending the spectral range of a q-plate by polarization-selective filtering

被引：23

作者：

Gecevicius, Mindaugas ^{[1
,3
]}

Ivanov, Maksym ^{[2
]}

Beresna, Martynas ^{[1
]}

Matijosius, Aidas ^{[2
]}

Tamuliene, Viktorija ^{[2
]}

Gertus, Titas ^{[4
]}

Cerkauskaite, Ausra ^{[1
]}

Redeckas, Kipras ^{[2
]}

Vengris, Mikas ^{[2
]}

Smilgevicius, Valerijus ^{[2
]}

Kazansky, Peter G. ^{[1
]}

机构：

[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

[2] Vilnius Univ, Laser Res Ctr, 10 Sauletekio Ave, LT-10223 Vilnius, Lithuania

[3] South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China

[4] Altech R&D Ltd, Mokslininku St 6A, LT-08412 Vilnius, Lithuania

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2018年 / 35卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

ORBITAL-ANGULAR-MOMENTUM; UNIAXIAL CRYSTALS; VORTEX; VECTOR; BEAMS; GLASS; SUPERCONTINUUM; DIFFRACTION; ELEMENTS;

D O I：

10.1364/JOSAB.35.000190

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical vortex beams in the visible and near-infrared spectrum over a wide spectral region are generated by a single S-waveplate polarization converter using polarization-selective filtering. A spectral coverage of 600 nm is demonstrated, with maximum efficiency at a wavelength of 530 nm. The broadband coverage is obtained using polarization filtering, which is applicable for any component based on geometric phase retardation. The efficiency of the filtering varies from 50% to 95% depending on the wavelength. This technique has potential application in stimulated emission microscopy and lithography. (C) 2017 Optical Society of America

引用

页码：190 / 196

页数：7

共 46 条

[1]

Altechna R& D, DAM THRESH

[2] Holographic optical element to generate achromatic vortices [J].