{"id":951,"date":"2024-12-05T02:10:41","date_gmt":"2024-12-05T02:10:41","guid":{"rendered":"https:\/\/sites.gtiit.edu.cn\/physicsprogram\/?post_type=mec-events&p=951"},"modified":"2024-12-05T02:10:41","modified_gmt":"2024-12-05T02:10:41","slug":"gtiit-stu-optics-seminar-6","status":"publish","type":"mec-events","link":"https:\/\/sites.gtiit.edu.cn\/physicsprogram\/events\/gtiit-stu-optics-seminar-6\/","title":{"rendered":"GTIIT-STU optics seminar"},"content":{"rendered":"

Title: Perturbative and non-perturbative light-matter interaction involving spatially structured light beams<\/strong><\/h3>\n

Speaker: <\/strong>Bikash Kumar Das (GTIIT)<\/strong><\/h3>\n

Abstract<\/u><\/strong><\/h3>\n

In this talk, I will present our recent works on both nonlinear perturbative [1] (specifically on second harmonic generation) and non-perturbative processes driven by spatially structured light beams. In particular, I will discuss how the utilization of the perfect optical vortex (POV) beams as a pump can remove some of the constraints imposed on the gas-phase high harmonic generation (HHG) driven by Laguerre-Gaussian (LG) vortex beams [2]. Later, I will discuss how we extended our theoretical model from the gas-phase HHG to the solid-state HHG realm to describe the formation of high harmonic vortices from ZnO [3], and the possibility of generating a twisted attosecond pulse train [4].<\/p>\n

    \n
  1. Kumar Das, M. Kr\u00fcger, and M. F. Ciappina, \u201cSecond Harmonic Generation in KTP Crystal Driven by Vortex Beams with Integer Topological Charges,\u201d SPIE Proceedings (2024) (in press<\/strong>).<\/li>\n
  2. Das, B. K., <\/strong> Granados, M. Kr\u00fcger and M. F. Ciappina, \u201cHigh-Order Harmonic Generation Driven by Perfect Optical Vortex Beams: Exploring the Orbital Angular Momentum Upscaling Law,\u201d Phys. Rev. Res. (2024) (in press<\/strong>), arXiv preprint arXiv:2409.19591, 2024<\/u><\/li>\n
  3. Granados, B. Kumar Das and M.F. Ciappina. \u201cOrbital Angular Momentum Beam assisted <\/a>High-Order Harmonic Generation in Semiconductor<\/a> Materials<\/a>,\u201d Submitted to Optics Express (under review) arXiv preprint arXiv:2404.10293, 2024<\/u><\/li>\n
  4. Granados, B. Kumar Das, C. Heide, S.Ghimire and M. F. Ciappina, \u201cAttosecond vortices in semiconductor materials,\u201d Communications Physics (under review) arXiv preprint arXiv:2410.14385, 2024<\/u><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    Title: Perturbative and non-perturbative light-matter interaction involving spatially structured light beams Speaker: Bikash Kumar Das (GTIIT) Abstract In this talk, I will present our recent works on both nonlinear perturbative [1] (specifically on second harmonic generation) and non-perturbative processes driven… Read More<\/a><\/p>\n","protected":false},"author":360,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","tags":[12],"mec_category":[],"_links":{"self":[{"href":"https:\/\/sites.gtiit.edu.cn\/physicsprogram\/wp-json\/wp\/v2\/mec-events\/951"}],"collection":[{"href":"https:\/\/sites.gtiit.edu.cn\/physicsprogram\/wp-json\/wp\/v2\/mec-events"}],"about":[{"href":"https:\/\/sites.gtiit.edu.cn\/physicsprogram\/wp-json\/wp\/v2\/types\/mec-events"}],"author":[{"embeddable":true,"href":"https:\/\/sites.gtiit.edu.cn\/physicsprogram\/wp-json\/wp\/v2\/users\/360"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.gtiit.edu.cn\/physicsprogram\/wp-json\/wp\/v2\/comments?post=951"}],"wp:attachment":[{"href":"https:\/\/sites.gtiit.edu.cn\/physicsprogram\/wp-json\/wp\/v2\/media?parent=951"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.gtiit.edu.cn\/physicsprogram\/wp-json\/wp\/v2\/tags?post=951"},{"taxonomy":"mec_category","embeddable":true,"href":"https:\/\/sites.gtiit.edu.cn\/physicsprogram\/wp-json\/wp\/v2\/mec_category?post=951"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}