M. M. Nazarov, T. A. Semenov, P. A. Shcheglov, M. V. Chashchin, A. A. Tausenev, D. A. Sidorov-Biryukov, A. V. Mitrofanov, A. V. Lazarev, V. M. Gordienko
{"title":"高能太赫兹辐射在气团靶中激光电子加速的相对论性条件下的产生","authors":"M. M. Nazarov, T. A. Semenov, P. A. Shcheglov, M. V. Chashchin, A. A. Tausenev, D. A. Sidorov-Biryukov, A. V. Mitrofanov, A. V. Lazarev, V. M. Gordienko","doi":"10.3103/S1068335625602948","DOIUrl":null,"url":null,"abstract":"<p>We report efficient (∼10<sup>–4</sup>) generation of terahertz (THz) radiation under relativistic laser irradiation of nitrogen and oxygen gas-cluster targets. The relationship between the THz radiation yield and the process of laser-plasma generation of a megaelectronvolt electron beam, the divergence of which depends on the target density, has been studied. For a femtosecond laser beam intensity of ∼10<sup>19</sup> W/cm<sup>2</sup>, an energy of 20 μJ is recorded in the frequency range from 0.1 to 3 THz at an accelerated electron bunch charge of nanocoulomb units. Directionality and polarization of the THz pulse, as well as the dependence of its energy on the gas type, pressure, power, and duration of the pump pulse, are measured.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"52 4 supplement","pages":"S364 - S376"},"PeriodicalIF":0.7000,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Generation of High-Power Terahertz Radiation in the Relativistic Regime of Laser-Electron Acceleration in a Gas-Cluster Target\",\"authors\":\"M. M. Nazarov, T. A. Semenov, P. A. Shcheglov, M. V. Chashchin, A. A. Tausenev, D. A. Sidorov-Biryukov, A. V. Mitrofanov, A. V. Lazarev, V. M. Gordienko\",\"doi\":\"10.3103/S1068335625602948\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>We report efficient (∼10<sup>–4</sup>) generation of terahertz (THz) radiation under relativistic laser irradiation of nitrogen and oxygen gas-cluster targets. The relationship between the THz radiation yield and the process of laser-plasma generation of a megaelectronvolt electron beam, the divergence of which depends on the target density, has been studied. For a femtosecond laser beam intensity of ∼10<sup>19</sup> W/cm<sup>2</sup>, an energy of 20 μJ is recorded in the frequency range from 0.1 to 3 THz at an accelerated electron bunch charge of nanocoulomb units. Directionality and polarization of the THz pulse, as well as the dependence of its energy on the gas type, pressure, power, and duration of the pump pulse, are measured.</p>\",\"PeriodicalId\":503,\"journal\":{\"name\":\"Bulletin of the Lebedev Physics Institute\",\"volume\":\"52 4 supplement\",\"pages\":\"S364 - S376\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2025-09-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of the Lebedev Physics Institute\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.3103/S1068335625602948\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of the Lebedev Physics Institute","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.3103/S1068335625602948","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
Generation of High-Power Terahertz Radiation in the Relativistic Regime of Laser-Electron Acceleration in a Gas-Cluster Target
We report efficient (∼10–4) generation of terahertz (THz) radiation under relativistic laser irradiation of nitrogen and oxygen gas-cluster targets. The relationship between the THz radiation yield and the process of laser-plasma generation of a megaelectronvolt electron beam, the divergence of which depends on the target density, has been studied. For a femtosecond laser beam intensity of ∼1019 W/cm2, an energy of 20 μJ is recorded in the frequency range from 0.1 to 3 THz at an accelerated electron bunch charge of nanocoulomb units. Directionality and polarization of the THz pulse, as well as the dependence of its energy on the gas type, pressure, power, and duration of the pump pulse, are measured.
期刊介绍：
Bulletin of the Lebedev Physics Institute is an international peer reviewed journal that publishes results of new original experimental and theoretical studies on all topics of physics: theoretical physics; atomic and molecular physics; nuclear physics; optics; lasers; condensed matter; physics of solids; biophysics, and others.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
