期刊
ADVANCED PHOTONICS
卷 3, 期 3, 页码 -出版社
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.AP.3.3.036002
关键词
metasurfaces; nonlinear optical processes; infrared photonics; imaging
类别
资金
- Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico
- EU Marie-Curie RISE program NOCTURNO
- UK Research and Innovation Future Leaders Fellowship [MR/T040513/1]
- Australian Research Council [CE20010001, DP190101559]
- UKRI [MR/T040513/1] Funding Source: UKRI
The study demonstrates a compact all-optical alternative for infrared imaging using GaAs semiconductor nanoantennas in a metasurface. It shows the upconversion of short-wave infrared wavelengths and translation to visible light, opening up new opportunities for compact infrared imaging devices with applications in infrared vision and life sciences.
Infrared imaging is a crucial technique in a multitude of applications, including night vision, autonomous vehicle navigation, optical tomography, and food quality control. Conventional infrared imaging technologies, however, require the use of materials such as narrow bandgap semiconductors, which are sensitive to thermal noise and often require cryogenic cooling. We demonstrate a compact all-optical alternative to perform infrared imaging in a metasurface composed of GaAs semiconductor nanoantennas, using a nonlinear wave-mixing process. We experimentally show the upconversion of short-wave infrared wavelengths via the coherent parametric process of sum-frequency generation. In this process, an infrared image of a target is mixed inside the metasurface with a strong pump beam, translating the image from the infrared to the visible in a nanoscale ultrathin imaging device. Our results open up new opportunities for the development of compact infrared imaging devices with applications in infrared vision and life sciences.
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