{"title":"基于 ZnGeP2 晶体的长波红外上转换探测。","authors":"Pengxiang Liu, Xu Guo, Liyuan Guo, Feng Qi, Zuotao Lei, Qiaoqiao Fu, Wei Li, Weifan Li","doi":"10.1364/OL.555362","DOIUrl":null,"url":null,"abstract":"<p><p>Longwave infrared (LWIR) detection is achieved through nonlinear upconversion with a ZnGeP<sub>2</sub> crystal. The target LWIR light interacts efficiently with a 1.06 μm probe laser, converting into a near-infrared signal. This detection configuration offers the following advantages: a broad response wavelength band of 9.69-12.38 μm and a high optical-to-optical responsivity of 150-200%, attributed to the enhanced properties of a custom-fabricated ZnGeP<sub>2</sub> crystal. Theoretical interpretations of these experimental outcomes are based on coupled-wave equations. At room temperature, the system achieves a minimal detectable energy in the sub-fJ (ns pulses) range. It has the potential for wide-field imaging when designed as noncritical phase matching, owing to its large acceptance angle.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 6","pages":"1861-1864"},"PeriodicalIF":3.1000,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Long-wave infrared upconversion detection based on a ZnGeP<sub>2</sub> crystal.\",\"authors\":\"Pengxiang Liu, Xu Guo, Liyuan Guo, Feng Qi, Zuotao Lei, Qiaoqiao Fu, Wei Li, Weifan Li\",\"doi\":\"10.1364/OL.555362\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Longwave infrared (LWIR) detection is achieved through nonlinear upconversion with a ZnGeP<sub>2</sub> crystal. The target LWIR light interacts efficiently with a 1.06 μm probe laser, converting into a near-infrared signal. This detection configuration offers the following advantages: a broad response wavelength band of 9.69-12.38 μm and a high optical-to-optical responsivity of 150-200%, attributed to the enhanced properties of a custom-fabricated ZnGeP<sub>2</sub> crystal. Theoretical interpretations of these experimental outcomes are based on coupled-wave equations. At room temperature, the system achieves a minimal detectable energy in the sub-fJ (ns pulses) range. It has the potential for wide-field imaging when designed as noncritical phase matching, owing to its large acceptance angle.</p>\",\"PeriodicalId\":19540,\"journal\":{\"name\":\"Optics letters\",\"volume\":\"50 6\",\"pages\":\"1861-1864\"},\"PeriodicalIF\":3.1000,\"publicationDate\":\"2025-03-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Optics letters\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1364/OL.555362\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OL.555362","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
Long-wave infrared upconversion detection based on a ZnGeP2 crystal.
Longwave infrared (LWIR) detection is achieved through nonlinear upconversion with a ZnGeP2 crystal. The target LWIR light interacts efficiently with a 1.06 μm probe laser, converting into a near-infrared signal. This detection configuration offers the following advantages: a broad response wavelength band of 9.69-12.38 μm and a high optical-to-optical responsivity of 150-200%, attributed to the enhanced properties of a custom-fabricated ZnGeP2 crystal. Theoretical interpretations of these experimental outcomes are based on coupled-wave equations. At room temperature, the system achieves a minimal detectable energy in the sub-fJ (ns pulses) range. It has the potential for wide-field imaging when designed as noncritical phase matching, owing to its large acceptance angle.
期刊介绍：
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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