Species-dependent tunneling ionization of weakly bound atoms in the short-wave infrared regime
We investigate the intensity- and species-dependent strong-field ionization of alkali metal atoms; sodium, potassium, rubidium and caesium; by intense, few-cycle laser pulses in the short-wave infrared (sw-IR) regime at 1800 nm. The low ionization potential, Ip, of these atoms allows us to scale the...
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description | We investigate the intensity- and species-dependent strong-field ionization of alkali metal atoms; sodium, potassium, rubidium and caesium; by intense, few-cycle laser pulses in the short-wave infrared (sw-IR) regime at 1800 nm. The low ionization potential, Ip, of these atoms allows us to scale the interaction and study the tunneling regime at sw-IR wavelengths using low intensities and pulse energies. Measurements of above-threshold ionization spectra in the alkali species exhibit distinct differences to rare gas spectra at 800 and 1800 nm. However, pairing the low ionization potential of these atoms with longer wavelengths results in the reemergence of some well-know features of nobel gas spectra in the visible, e.g., the plateau. Our focus lies on the comparison of high-energy rescattered electron yield among the different alkali species. The highly unfavorable plateau scaling known from rare gases at longer wavelengths is successfully circumvented by switching to low-Ip targets. In the investigated parameter range, we identify potassium as the most efficient rescatterer. In addition, this paves the way to a carrier-envelope phasemeter operating in the sw-IR/mid-wave IR regime, employing alkali metal atoms as a target. |
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The low ionization potential, Ip, of these atoms allows us to scale the interaction and study the tunneling regime at sw-IR wavelengths using low intensities and pulse energies. Measurements of above-threshold ionization spectra in the alkali species exhibit distinct differences to rare gas spectra at 800 and 1800 nm. However, pairing the low ionization potential of these atoms with longer wavelengths results in the reemergence of some well-know features of nobel gas spectra in the visible, e.g., the plateau. Our focus lies on the comparison of high-energy rescattered electron yield among the different alkali species. The highly unfavorable plateau scaling known from rare gases at longer wavelengths is successfully circumvented by switching to low-Ip targets. In the investigated parameter range, we identify potassium as the most efficient rescatterer. In addition, this paves the way to a carrier-envelope phasemeter operating in the sw-IR/mid-wave IR regime, employing alkali metal atoms as a target.</description><identifier>ISSN: 1367-2630</identifier><identifier>EISSN: 1367-2630</identifier><identifier>DOI: 10.1088/1367-2630/aba024</identifier><identifier>CODEN: NJOPFM</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>above-threshold ionization ; alkali metal atoms ; Alkali metals ; Atomic properties ; carrier-envelope phasemeter ; Cesium ; few-cycle pulses ; Field ionization ; Ionization potentials ; Parameter identification ; Physics ; Potassium ; Rare gases ; Rubidium ; Short wave radiation ; short-wave infrared regime ; Spectra ; strong-field ionization ; Wavelengths</subject><ispartof>New journal of physics, 2020-08, Vol.22 (8), p.83021</ispartof><rights>2020 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft</rights><rights>2020. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c448t-f6a327b8c9dd91618d256cd5830ccdeb031e4557a6cb42106637e220184cd6613</citedby><cites>FETCH-LOGICAL-c448t-f6a327b8c9dd91618d256cd5830ccdeb031e4557a6cb42106637e220184cd6613</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/1367-2630/aba024/pdf$$EPDF$$P50$$Giop$$Hfree_for_read</linktopdf><link.rule.ids>314,780,784,864,2102,27924,27925,38868,38890,53840,53867</link.rule.ids></links><search><creatorcontrib>Zille, D</creatorcontrib><creatorcontrib>Adolph, D</creatorcontrib><creatorcontrib>Skruszewicz, S</creatorcontrib><creatorcontrib>Sayler, A M</creatorcontrib><creatorcontrib>Paulus, G G</creatorcontrib><title>Species-dependent tunneling ionization of weakly bound atoms in the short-wave infrared regime</title><title>New journal of physics</title><addtitle>NJP</addtitle><addtitle>New J. Phys</addtitle><description>We investigate the intensity- and species-dependent strong-field ionization of alkali metal atoms; sodium, potassium, rubidium and caesium; by intense, few-cycle laser pulses in the short-wave infrared (sw-IR) regime at 1800 nm. The low ionization potential, Ip, of these atoms allows us to scale the interaction and study the tunneling regime at sw-IR wavelengths using low intensities and pulse energies. Measurements of above-threshold ionization spectra in the alkali species exhibit distinct differences to rare gas spectra at 800 and 1800 nm. However, pairing the low ionization potential of these atoms with longer wavelengths results in the reemergence of some well-know features of nobel gas spectra in the visible, e.g., the plateau. Our focus lies on the comparison of high-energy rescattered electron yield among the different alkali species. The highly unfavorable plateau scaling known from rare gases at longer wavelengths is successfully circumvented by switching to low-Ip targets. In the investigated parameter range, we identify potassium as the most efficient rescatterer. In addition, this paves the way to a carrier-envelope phasemeter operating in the sw-IR/mid-wave IR regime, employing alkali metal atoms as a target.</description><subject>above-threshold ionization</subject><subject>alkali metal atoms</subject><subject>Alkali metals</subject><subject>Atomic properties</subject><subject>carrier-envelope phasemeter</subject><subject>Cesium</subject><subject>few-cycle pulses</subject><subject>Field ionization</subject><subject>Ionization potentials</subject><subject>Parameter identification</subject><subject>Physics</subject><subject>Potassium</subject><subject>Rare gases</subject><subject>Rubidium</subject><subject>Short wave radiation</subject><subject>short-wave infrared regime</subject><subject>Spectra</subject><subject>strong-field ionization</subject><subject>Wavelengths</subject><issn>1367-2630</issn><issn>1367-2630</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>DOA</sourceid><recordid>eNp1kU1v1DAQhiMEEqVw52iJAxfS2mPHcY6o4qNSJQ7AFWtiT7Zedu1ge1uVX0-2QYUDnGb06p1nvprmpeBnghtzLqTuW9CSn-OIHNSj5uRBevxX_rR5VsqWcyEMwEnz7fNMLlBpPc0UPcXK6iFG2oW4YSHF8BPrElia2C3h990dG9MheoY17QsLkdVrYuU65dre4g0typQxk2eZNmFPz5snE-4KvfgdT5uv7999ufjYXn36cHnx9qp1SpnaThol9KNxg_eD0MJ46LTznZHcOU8jl4JU1_Wo3ahAcK1lTwBcGOW81kKeNpcr1yfc2jmHPeY7mzDYeyHljcVcg9uR1X7oJulg0D0qcHpEhcMgzGDIaG7GhfVqZc05_ThQqXabDjku41tQEroOlDp25KvL5VRKpumhq-D2-BF7PLk9ntyuH1lKXq8lIc1_mHE7WwBrLF-2BWFnPy3ON_9w_hf8C_dkmPo</recordid><startdate>20200801</startdate><enddate>20200801</enddate><creator>Zille, D</creator><creator>Adolph, D</creator><creator>Skruszewicz, S</creator><creator>Sayler, A M</creator><creator>Paulus, G G</creator><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>L7M</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>DOA</scope></search><sort><creationdate>20200801</creationdate><title>Species-dependent tunneling ionization of weakly bound atoms in the short-wave infrared regime</title><author>Zille, D ; Adolph, D ; Skruszewicz, S ; Sayler, A M ; Paulus, G G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c448t-f6a327b8c9dd91618d256cd5830ccdeb031e4557a6cb42106637e220184cd6613</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>above-threshold ionization</topic><topic>alkali metal atoms</topic><topic>Alkali metals</topic><topic>Atomic properties</topic><topic>carrier-envelope phasemeter</topic><topic>Cesium</topic><topic>few-cycle pulses</topic><topic>Field ionization</topic><topic>Ionization potentials</topic><topic>Parameter identification</topic><topic>Physics</topic><topic>Potassium</topic><topic>Rare gases</topic><topic>Rubidium</topic><topic>Short wave radiation</topic><topic>short-wave infrared regime</topic><topic>Spectra</topic><topic>strong-field ionization</topic><topic>Wavelengths</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zille, D</creatorcontrib><creatorcontrib>Adolph, D</creatorcontrib><creatorcontrib>Skruszewicz, S</creatorcontrib><creatorcontrib>Sayler, A M</creatorcontrib><creatorcontrib>Paulus, G G</creatorcontrib><collection>IOP Publishing</collection><collection>IOPscience (Open Access)</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ProQuest Publicly Available Content database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Directory of Open Access Journals</collection><jtitle>New journal of physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zille, D</au><au>Adolph, D</au><au>Skruszewicz, S</au><au>Sayler, A M</au><au>Paulus, G G</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Species-dependent tunneling ionization of weakly bound atoms in the short-wave infrared regime</atitle><jtitle>New journal of physics</jtitle><stitle>NJP</stitle><addtitle>New J. Phys</addtitle><date>2020-08-01</date><risdate>2020</risdate><volume>22</volume><issue>8</issue><spage>83021</spage><pages>83021-</pages><issn>1367-2630</issn><eissn>1367-2630</eissn><coden>NJOPFM</coden><abstract>We investigate the intensity- and species-dependent strong-field ionization of alkali metal atoms; sodium, potassium, rubidium and caesium; by intense, few-cycle laser pulses in the short-wave infrared (sw-IR) regime at 1800 nm. The low ionization potential, Ip, of these atoms allows us to scale the interaction and study the tunneling regime at sw-IR wavelengths using low intensities and pulse energies. Measurements of above-threshold ionization spectra in the alkali species exhibit distinct differences to rare gas spectra at 800 and 1800 nm. However, pairing the low ionization potential of these atoms with longer wavelengths results in the reemergence of some well-know features of nobel gas spectra in the visible, e.g., the plateau. Our focus lies on the comparison of high-energy rescattered electron yield among the different alkali species. The highly unfavorable plateau scaling known from rare gases at longer wavelengths is successfully circumvented by switching to low-Ip targets. In the investigated parameter range, we identify potassium as the most efficient rescatterer. In addition, this paves the way to a carrier-envelope phasemeter operating in the sw-IR/mid-wave IR regime, employing alkali metal atoms as a target.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/1367-2630/aba024</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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subjects | above-threshold ionization alkali metal atoms Alkali metals Atomic properties carrier-envelope phasemeter Cesium few-cycle pulses Field ionization Ionization potentials Parameter identification Physics Potassium Rare gases Rubidium Short wave radiation short-wave infrared regime Spectra strong-field ionization Wavelengths |
title | Species-dependent tunneling ionization of weakly bound atoms in the short-wave infrared regime |
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