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Tunable Vector Vortex Beam Vertical Cavity Surface Emitting Laser
DOI:10.1002/adfm.202425931.png)
摘要
En 中文
具有轨道角动量(Orbital Angular Momentum)的激光光源对未来光通信和光操控领域至关重要。然而,矢量涡旋光束激光光源在小型化、不可调谐以及制备工艺复杂性方面面临挑战。本研究提出了一种超紧凑的、可调谐的矢量涡旋垂直腔面发射激光器方案,该方案在极化方向和拓扑电荷方面均可调谐。胆甾醇液晶(cholesteric liquid crystals)和球晶(spherulites)被集成到垂直腔面发射激光器中以产生矢量涡旋光束。胆甾醇液晶首先加载自旋角动量(spin angular momentum),随后由球晶将其转换为轨道角动量(Orbital Angular Momentum),最终实现矢量涡旋光束的发射。通过引入分子马达(molecular motors),在紫外光(UV)照射下,光学涡旋的拓扑电荷数可在-1和+1之间自由切换。基于液晶(liquid crystals)独特的光学活性,制备的激光器还可被调控为发射厄米-高斯(Hermite-Gaussian)模式光束,其极化角度范围从-44度到+44度。这种芯片级可调谐矢量涡旋光束激光器在光操控、量子加密和光通信领域具有应用价值。
Keyword:
light modulation
liquid crystals
vector vortex beams
vertical cavity surface emitting lasers
期刊
IF:
19
论文数:
3.5W
被引数:
32.1W
机构
引用论文
6-Endo- and 5-exo-digonal cyclizations of o-hydroxyphenyl ethynyl ketones: A key step for highly selective benzopyranone formation
Tetrahedron
IF0
Metasurface Enabled On-Chip Generation and Manipulation of Vector Beams from Vertical Cavity Surface-Emitting Lasers超表面实现了垂直腔表面发射激光器的矢量光束的片上生成和操纵
ADVANCED MATERIALS
IF26.8
Nanoprinted Diffractive Layer Integrated Vertical-Cavity Surface-Emitting Vortex Lasers with Scalable Topological Charge
NANO LETTERS
IF9.1
Optical Vector Vortex Generation by Spherulites with Cylindrical Anisotropy具有圆柱各向异性的球晶产生光学矢量涡旋
NANO LETTERS
IF9.1
Using Optical Vortex To Control the Chirality of Twisted Metal Nanostructures利用光学涡旋控制扭曲金属纳米结构的手性
NANO LETTERS
IF9.1
Multichannel Generations of Orbital Angular Momentum Modes with On-Demand Characteristics on a Chip在芯片上具有按需特性的轨道角动量模式的多通道生成
Vortex Laser based on III-V semiconductor metasurface: direct generation of coherent Laguerre-Gauss modes carrying controlled orbital angular momentum
SCIENTIFIC REPORTS
IF3.9

