journal article·2023-06-13

Vertical Emitting Nanowire Vector Beam Lasers

Xutao Zhang, Ruixuan Yi, Bijun Zhao, Chen Li, Li Li, Ziyuan Li, Fanlu Zhang, Naiyin Wang, Mingwen Zhang, Liang Fang, Jianlin Zhao, Pingping Chen, Wei Lu, Lan Fu, Hark Hoe Tan, Chennupati Jagadish, Xuetao Gan

ACS Nano· Volume 17· Issue 11
Publisher page

Abstract

Due to the peculiar structured light field with spatially variant polarizations on the same wavefront, vector beams (VBs) have sparked research enthusiasm in developing advanced super-resolution imaging and optical communications techniques. A compact VB nanolaser is intriguing for VB applications in miniaturized photonic integrated circuits. However, determined by the diffraction limit of light, it is a challenge to realize a VB nanolaser in the subwavelength scale because the VB lasing modes should have laterally structured distributions. Here, we demonstrate a VB nanolaser made from a 300 nm thick InGaAs/GaAs nanowire (NW). To select the high-order VB lasing mode, a standing NW as-grown from the selective-area-epitaxial (SAE) growth process is utilized, which has a bottom donut-shaped interface with the silicon oxide growth substrate. With this donut-shaped interface as one of the reflective mirrors of the nanolaser cavity, the VB lasing mode has the lowest threshold. Experimentally, a single-mode VB lasing mode with a donut-shaped amplitude and azimuthally cylindrical polarization distribution is obtained. Together with the high yield and uniformity of the SAE-grown NWs, our work provides a straightforward and scalable path toward cost-effective co-integration of VB nanolasers on potential photonic integrated circuits.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Photonic and Optical Devices · Orbital Angular Momentum in Optics · Optical Coatings and Gratings

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE), and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi’an 710072, China

Key Laboratory of Light Field Manipulation and Information Acquisition, Ministry of Industry and Information Technology, and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an 710129, China

Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2601, Australia

State Key Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yutian Road, Shanghai 200083, China

University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China

School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong District, Shanghai 201210, China

ARC Centre of Excellence for Transformative Meta-Optical Systems, Research School of Physics, The Australian National University, Canberra, ACT 2601, Australia

Funding

National Key Research and Development Program of China · Australian Research Council · Science and Technology Commission of Shanghai Municipality · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Northwestern Polytechnical University · Key Research and Development Projects of Shaanxi Province

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