Solute migration caused by excited state absorptions
Using the Z -scan technique, we find that migration of chloroaluminum phthalocyanine in liquid ethanol can be induced by the absorption of a 19 ps laser pulse with energy exceeding a threshold but not by that of a 2.8 ns pulse depositing more energy at the solute molecules. Considering each solute m...
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Veröffentlicht in: | The Journal of chemical physics 2009-01, Vol.130 (2), p.024511-024511-10 |
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container_title | The Journal of chemical physics |
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creator | Chang, Che-Kai Li, Yi-Ci Chen, Chen-Wei Lee, Li-Shu Tang, Jaw-Luen Wang, Chi-Chen Leu, Chang-Chi Wei, Tai-Huei Huang, Tzer-Hsiang Song, Yinglin |
description | Using the
Z
-scan technique, we find that migration of chloroaluminum phthalocyanine in liquid ethanol can be induced by the absorption of a
19
ps
laser pulse with energy exceeding a threshold but not by that of a
2.8
ns
pulse depositing more energy at the solute molecules. Considering each solute molecule as an oscillator confined within a potential well, we explain, in accordance with the five-energy-band model, that solute molecules excited by a
19
ps
pulse retain more translational excess energy to overcome the potential well barrier compared with those excited by a
2.8
ns
pulse of equal energy. Therefore, they are more likely to migrate out of the laser beam center, weakening the solution's absorption that we detect in the
Z
-scan measurements. Furthermore, we theoretically infer that the
19
ps
pulse-induced solute migration tends to be nonquasistatic and experimentally verify that it cannot be attributed to the Soret effect, a quasistatic process. |
doi_str_mv | 10.1063/1.3033563 |
format | Article |
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Z
-scan technique, we find that migration of chloroaluminum phthalocyanine in liquid ethanol can be induced by the absorption of a
19
ps
laser pulse with energy exceeding a threshold but not by that of a
2.8
ns
pulse depositing more energy at the solute molecules. Considering each solute molecule as an oscillator confined within a potential well, we explain, in accordance with the five-energy-band model, that solute molecules excited by a
19
ps
pulse retain more translational excess energy to overcome the potential well barrier compared with those excited by a
2.8
ns
pulse of equal energy. Therefore, they are more likely to migrate out of the laser beam center, weakening the solution's absorption that we detect in the
Z
-scan measurements. Furthermore, we theoretically infer that the
19
ps
pulse-induced solute migration tends to be nonquasistatic and experimentally verify that it cannot be attributed to the Soret effect, a quasistatic process.</description><identifier>ISSN: 0021-9606</identifier><identifier>EISSN: 1089-7690</identifier><identifier>DOI: 10.1063/1.3033563</identifier><identifier>PMID: 19154042</identifier><identifier>CODEN: JCPSA6</identifier><language>eng</language><publisher>United States: American Institute of Physics</publisher><ispartof>The Journal of chemical physics, 2009-01, Vol.130 (2), p.024511-024511-10</ispartof><rights>2009 American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c338t-b3f88fc9cc5a35fef18f16cbb21c724b347d3bb55f925198e47d8e6ccf90a5b93</citedby><cites>FETCH-LOGICAL-c338t-b3f88fc9cc5a35fef18f16cbb21c724b347d3bb55f925198e47d8e6ccf90a5b93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,794,1559,4512,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19154042$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chang, Che-Kai</creatorcontrib><creatorcontrib>Li, Yi-Ci</creatorcontrib><creatorcontrib>Chen, Chen-Wei</creatorcontrib><creatorcontrib>Lee, Li-Shu</creatorcontrib><creatorcontrib>Tang, Jaw-Luen</creatorcontrib><creatorcontrib>Wang, Chi-Chen</creatorcontrib><creatorcontrib>Leu, Chang-Chi</creatorcontrib><creatorcontrib>Wei, Tai-Huei</creatorcontrib><creatorcontrib>Huang, Tzer-Hsiang</creatorcontrib><creatorcontrib>Song, Yinglin</creatorcontrib><title>Solute migration caused by excited state absorptions</title><title>The Journal of chemical physics</title><addtitle>J Chem Phys</addtitle><description>Using the
Z
-scan technique, we find that migration of chloroaluminum phthalocyanine in liquid ethanol can be induced by the absorption of a
19
ps
laser pulse with energy exceeding a threshold but not by that of a
2.8
ns
pulse depositing more energy at the solute molecules. Considering each solute molecule as an oscillator confined within a potential well, we explain, in accordance with the five-energy-band model, that solute molecules excited by a
19
ps
pulse retain more translational excess energy to overcome the potential well barrier compared with those excited by a
2.8
ns
pulse of equal energy. Therefore, they are more likely to migrate out of the laser beam center, weakening the solution's absorption that we detect in the
Z
-scan measurements. Furthermore, we theoretically infer that the
19
ps
pulse-induced solute migration tends to be nonquasistatic and experimentally verify that it cannot be attributed to the Soret effect, a quasistatic process.</description><issn>0021-9606</issn><issn>1089-7690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LxDAQhoMo7rp68A9IT4KHrplOk00ugix-wYIH9RySbCKVdrsmLbj_3qwtevI078DDy8xDyDnQOVCO1zBHisg4HpApUCHzBZf0kEwpLSCXnPIJOYnxg1IKi6I8JhOQwEpaFlNSvrR137msqd6D7qp2k1ndR7fOzC5zX7bqUoydToQ2sQ3bPRJPyZHXdXRn45yRt_u71-Vjvnp-eFrernKLKLrcoBfCW2kt08i88yA8cGtMATbdYbBcrNEYxrwsGEjh0i4ct9ZLqpmROCOXQ-82tJ-9i51qqmhdXeuNa_uoOBcoCsAEXg2gDW2MwXm1DVWjw04BVXtFCtSoKLEXY2lvGrf-I0cnCbgZgJje_3Hyf9tgT_3aU8kefgNI-3Y6</recordid><startdate>20090114</startdate><enddate>20090114</enddate><creator>Chang, Che-Kai</creator><creator>Li, Yi-Ci</creator><creator>Chen, Chen-Wei</creator><creator>Lee, Li-Shu</creator><creator>Tang, Jaw-Luen</creator><creator>Wang, Chi-Chen</creator><creator>Leu, Chang-Chi</creator><creator>Wei, Tai-Huei</creator><creator>Huang, Tzer-Hsiang</creator><creator>Song, Yinglin</creator><general>American Institute of Physics</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20090114</creationdate><title>Solute migration caused by excited state absorptions</title><author>Chang, Che-Kai ; Li, Yi-Ci ; Chen, Chen-Wei ; Lee, Li-Shu ; Tang, Jaw-Luen ; Wang, Chi-Chen ; Leu, Chang-Chi ; Wei, Tai-Huei ; Huang, Tzer-Hsiang ; Song, Yinglin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c338t-b3f88fc9cc5a35fef18f16cbb21c724b347d3bb55f925198e47d8e6ccf90a5b93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chang, Che-Kai</creatorcontrib><creatorcontrib>Li, Yi-Ci</creatorcontrib><creatorcontrib>Chen, Chen-Wei</creatorcontrib><creatorcontrib>Lee, Li-Shu</creatorcontrib><creatorcontrib>Tang, Jaw-Luen</creatorcontrib><creatorcontrib>Wang, Chi-Chen</creatorcontrib><creatorcontrib>Leu, Chang-Chi</creatorcontrib><creatorcontrib>Wei, Tai-Huei</creatorcontrib><creatorcontrib>Huang, Tzer-Hsiang</creatorcontrib><creatorcontrib>Song, Yinglin</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The Journal of chemical physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chang, Che-Kai</au><au>Li, Yi-Ci</au><au>Chen, Chen-Wei</au><au>Lee, Li-Shu</au><au>Tang, Jaw-Luen</au><au>Wang, Chi-Chen</au><au>Leu, Chang-Chi</au><au>Wei, Tai-Huei</au><au>Huang, Tzer-Hsiang</au><au>Song, Yinglin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Solute migration caused by excited state absorptions</atitle><jtitle>The Journal of chemical physics</jtitle><addtitle>J Chem Phys</addtitle><date>2009-01-14</date><risdate>2009</risdate><volume>130</volume><issue>2</issue><spage>024511</spage><epage>024511-10</epage><pages>024511-024511-10</pages><issn>0021-9606</issn><eissn>1089-7690</eissn><coden>JCPSA6</coden><abstract>Using the
Z
-scan technique, we find that migration of chloroaluminum phthalocyanine in liquid ethanol can be induced by the absorption of a
19
ps
laser pulse with energy exceeding a threshold but not by that of a
2.8
ns
pulse depositing more energy at the solute molecules. Considering each solute molecule as an oscillator confined within a potential well, we explain, in accordance with the five-energy-band model, that solute molecules excited by a
19
ps
pulse retain more translational excess energy to overcome the potential well barrier compared with those excited by a
2.8
ns
pulse of equal energy. Therefore, they are more likely to migrate out of the laser beam center, weakening the solution's absorption that we detect in the
Z
-scan measurements. Furthermore, we theoretically infer that the
19
ps
pulse-induced solute migration tends to be nonquasistatic and experimentally verify that it cannot be attributed to the Soret effect, a quasistatic process.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><pmid>19154042</pmid><doi>10.1063/1.3033563</doi><tpages>1</tpages></addata></record> |
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language | eng |
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source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
title | Solute migration caused by excited state absorptions |
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