A. A. Razova, V. V. Rumyantsev, K. A. Mazhukina, V. V. Utochkin, M. A. Fadeev, A. A. Dubinov, V. Ya. Aleshkin, N. N. Mikhailov, S. A. Dvoretsky, D. V. Shengurov, N. S. Gusev, E. E. Morozova, V. I. Gavrilenko, S. V. Morozov
{"title":"Microdisk HgCdTe lasers operating at 22–25 μm under optical pumping","authors":"A. A. Razova, V. V. Rumyantsev, K. A. Mazhukina, V. V. Utochkin, M. A. Fadeev, A. A. Dubinov, V. Ya. Aleshkin, N. N. Mikhailov, S. A. Dvoretsky, D. V. Shengurov, N. S. Gusev, E. E. Morozova, V. I. Gavrilenko, S. V. Morozov","doi":"10.1063/5.0253661","DOIUrl":null,"url":null,"abstract":"Lasing from HgCdTe microdisk cavities is demonstrated at wavelengths as long as 20–25 μm. The optical threshold and operation temperature are mainly limited by nonradiative Shockley–Read–Hall type recombination. The employed ion etching technology appears to introduce additional defects in the vicinity of the microdisks, degrading figures of merit as the height of the cavity increases. However, a watt-level mid-infrared pumping source should suffice for lasing in microdisks with a height of ∼3 and ∼100 μm diameter.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"57 1","pages":""},"PeriodicalIF":3.6000,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics Letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1063/5.0253661","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
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Abstract
Lasing from HgCdTe microdisk cavities is demonstrated at wavelengths as long as 20–25 μm. The optical threshold and operation temperature are mainly limited by nonradiative Shockley–Read–Hall type recombination. The employed ion etching technology appears to introduce additional defects in the vicinity of the microdisks, degrading figures of merit as the height of the cavity increases. However, a watt-level mid-infrared pumping source should suffice for lasing in microdisks with a height of ∼3 and ∼100 μm diameter.
期刊介绍：
Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology.
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