Yield enhancement of elliptical high harmonics driven by bicircular laser pulses

We theoretically investigate the yield enhancement of elliptical high harmonics in the interaction of molecules with bicircular laser pulses by solving the time-dependent Schrödinger equation. It is shown that by adjusting the relative intensity ratio of the two bicircular field components in specif...

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Veröffentlicht in:Chinese physics B 2022-10, Vol.31 (11), p.114209-408
Hauptverfasser: Zhang, Xiaofan, Zhu, Xiaosong
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description We theoretically investigate the yield enhancement of elliptical high harmonics in the interaction of molecules with bicircular laser pulses by solving the time-dependent Schrödinger equation. It is shown that by adjusting the relative intensity ratio of the two bicircular field components in specific ranges the yield of the molecular high harmonics for the plateau and cutoff regions can be respectively enhanced. To analyze this enhancement phenomenon, we calculate the weights of the electron classical trajectories. Additionally, we also study the ellipticity distribution of harmonics for different intensity ratios. We find that these enhanced harmonics are elliptically polarized, which we mainly attribute to the recombination dipole moment of the major weighted trajectories. These enhanced elliptical extreme ultraviolet and soft x-ray radiations may serve as essential tools for exploring the ultrafast dynamics in magnetic materials and chiral media.
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It is shown that by adjusting the relative intensity ratio of the two bicircular field components in specific ranges the yield of the molecular high harmonics for the plateau and cutoff regions can be respectively enhanced. To analyze this enhancement phenomenon, we calculate the weights of the electron classical trajectories. Additionally, we also study the ellipticity distribution of harmonics for different intensity ratios. We find that these enhanced harmonics are elliptically polarized, which we mainly attribute to the recombination dipole moment of the major weighted trajectories. These enhanced elliptical extreme ultraviolet and soft x-ray radiations may serve as essential tools for exploring the ultrafast dynamics in magnetic materials and chiral media.</description><identifier>ISSN: 1674-1056</identifier><identifier>DOI: 10.1088/1674-1056/ac685b</identifier><language>eng</language><publisher>Chinese Physical Society and IOP Publishing Ltd</publisher><subject>bicircular laser pulses ; extreme ultraviolet and soft x-ray ; high harmonics</subject><ispartof>Chinese physics B, 2022-10, Vol.31 (11), p.114209-408</ispartof><rights>2022 Chinese Physical Society and IOP Publishing Ltd</rights><rights>Copyright © Wanfang Data Co. Ltd. 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B</addtitle><description>We theoretically investigate the yield enhancement of elliptical high harmonics in the interaction of molecules with bicircular laser pulses by solving the time-dependent Schrödinger equation. It is shown that by adjusting the relative intensity ratio of the two bicircular field components in specific ranges the yield of the molecular high harmonics for the plateau and cutoff regions can be respectively enhanced. To analyze this enhancement phenomenon, we calculate the weights of the electron classical trajectories. Additionally, we also study the ellipticity distribution of harmonics for different intensity ratios. We find that these enhanced harmonics are elliptically polarized, which we mainly attribute to the recombination dipole moment of the major weighted trajectories. These enhanced elliptical extreme ultraviolet and soft x-ray radiations may serve as essential tools for exploring the ultrafast dynamics in magnetic materials and chiral media.</description><subject>bicircular laser pulses</subject><subject>extreme ultraviolet and soft x-ray</subject><subject>high harmonics</subject><issn>1674-1056</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp1kD1PwzAQhj2ARCnsjN5YCPUl8UdGVPElVYIBBibLcZzEletEdktVfj2ugmBiutPdc-9JD0JXQG6BCLEAxssMCGULpZmg9Qma_Y7O0HmMa0IYkLyYodcPa1yDje-V12Zj_BYPLTbO2XFrtXK4t12PexU2g7c64ibYT-NxfcC11TbonVMBOxVNwOPORRMv0GmrUnP5U-fo_eH-bfmUrV4en5d3q0xDRbcZb4XmLWmMqk1OSoDCNAWroawKLgzRFSOa84JTSKu6EYyJRNNcAFUV1LyYo-spd698q3wn18Mu-PRRfnV7J1NongOQkiaSTKQOQ4zBtHIMdqPCQQKRR1_yKEce5cjJVzq5mU7sMP4F_4t_AxAbbb4</recordid><startdate>20221001</startdate><enddate>20221001</enddate><creator>Zhang, Xiaofan</creator><creator>Zhu, Xiaosong</creator><general>Chinese Physical Society and IOP Publishing Ltd</general><general>Hubei Key Laboratory of Optical Information and Pattern Recognition,Wuhan Institute of Technology,Wuhan 430205,China%Wuhan National Laboratory for Optoelectronics and School of Physics,Huazhong University of Science and Technology,Wuhan 430074,China</general><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20221001</creationdate><title>Yield enhancement of elliptical high harmonics driven by bicircular laser pulses</title><author>Zhang, Xiaofan ; Zhu, Xiaosong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c195t-7f8c7f0deabe204113ed36b149378e0c960c773751113bd8668f0d52815a91b73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>bicircular laser pulses</topic><topic>extreme ultraviolet and soft x-ray</topic><topic>high harmonics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Xiaofan</creatorcontrib><creatorcontrib>Zhu, Xiaosong</creatorcontrib><collection>CrossRef</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Chinese physics B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Xiaofan</au><au>Zhu, Xiaosong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Yield enhancement of elliptical high harmonics driven by bicircular laser pulses</atitle><jtitle>Chinese physics B</jtitle><addtitle>Chin. Phys. B</addtitle><date>2022-10-01</date><risdate>2022</risdate><volume>31</volume><issue>11</issue><spage>114209</spage><epage>408</epage><pages>114209-408</pages><issn>1674-1056</issn><abstract>We theoretically investigate the yield enhancement of elliptical high harmonics in the interaction of molecules with bicircular laser pulses by solving the time-dependent Schrödinger equation. It is shown that by adjusting the relative intensity ratio of the two bicircular field components in specific ranges the yield of the molecular high harmonics for the plateau and cutoff regions can be respectively enhanced. To analyze this enhancement phenomenon, we calculate the weights of the electron classical trajectories. Additionally, we also study the ellipticity distribution of harmonics for different intensity ratios. We find that these enhanced harmonics are elliptically polarized, which we mainly attribute to the recombination dipole moment of the major weighted trajectories. These enhanced elliptical extreme ultraviolet and soft x-ray radiations may serve as essential tools for exploring the ultrafast dynamics in magnetic materials and chiral media.</abstract><pub>Chinese Physical Society and IOP Publishing Ltd</pub><doi>10.1088/1674-1056/ac685b</doi><tpages>6</tpages></addata></record>
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subjects bicircular laser pulses
extreme ultraviolet and soft x-ray
high harmonics
title Yield enhancement of elliptical high harmonics driven by bicircular laser pulses
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