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A new coumarin laser dye 3-(benzothiazol-2-yl)-7-hydroxycoumarin
The electronic absorption, and emission spectra as well as fluorescence quantum yield of 3-(benzothiazol-2-yl)-7-hydroxycoumarin (BTHC) were measured in different solvents and are affected by solvent polarity (Δ f). The deprotonation of BTHC by triethylamine is a reversible process. BTHC is relative...
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| Published in: | Optics and laser technology 2005-04, Vol.37 (3), p.245-249 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c376t-b4d1099eb2e61ead8849ab0cc6347a631d1a1c9d74850946f2729330c1042f373 |
| container_end_page | 249 |
| container_issue | 3 |
| container_start_page | 245 |
| container_title | Optics and laser technology |
| container_volume | 37 |
| creator | Azim, S.A. Al-Hazmy, S.M. Ebeid, E.M. El-Daly, S.A. |
| description | The electronic absorption, and emission spectra as well as fluorescence quantum yield of 3-(benzothiazol-2-yl)-7-hydroxycoumarin (BTHC) were measured in different solvents and are affected by solvent polarity (Δ
f). The deprotonation of BTHC by triethylamine is a reversible process. BTHC is relatively photostable, the quantum yield of photodecomposition (
φ
c) was found to be 2×10
−4 and 2.7×10
−4 in EtOH and DMF, respectively. The fluorescence lifetimes of BTHC were measured in the absence and in the presence of molecular oxygen and were found to be 2.82 and
2.78
ns
, respectively. BTHC acts as good laser dye upon pumping with nitrogen laser
(λ
ex
=337.1
nm)
in ethanol and gives laser emission with maxima at 508 and
522
nm
. |
| doi_str_mv | 10.1016/j.optlastec.2004.04.003 |
| format | article |
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f). The deprotonation of BTHC by triethylamine is a reversible process. BTHC is relatively photostable, the quantum yield of photodecomposition (
φ
c) was found to be 2×10
−4 and 2.7×10
−4 in EtOH and DMF, respectively. The fluorescence lifetimes of BTHC were measured in the absence and in the presence of molecular oxygen and were found to be 2.82 and
2.78
ns
, respectively. BTHC acts as good laser dye upon pumping with nitrogen laser
(λ
ex
=337.1
nm)
in ethanol and gives laser emission with maxima at 508 and
522
nm
.</description><identifier>ISSN: 0030-3992</identifier><identifier>EISSN: 1879-2545</identifier><identifier>DOI: 10.1016/j.optlastec.2004.04.003</identifier><identifier>CODEN: OLTCAS</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>3-(benzothiazol-2-yl)-7-hydroxycoumarin ; Dye lasers ; Exact sciences and technology ; Fundamental areas of phenomenology (including applications) ; Laser dyes ; Lasers ; Lifetime ; Medium effect ; Optical materials ; Optics ; Physics ; Polymers and organics</subject><ispartof>Optics and laser technology, 2005-04, Vol.37 (3), p.245-249</ispartof><rights>2004 Elsevier Ltd</rights><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c376t-b4d1099eb2e61ead8849ab0cc6347a631d1a1c9d74850946f2729330c1042f373</citedby><cites>FETCH-LOGICAL-c376t-b4d1099eb2e61ead8849ab0cc6347a631d1a1c9d74850946f2729330c1042f373</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16455781$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Azim, S.A.</creatorcontrib><creatorcontrib>Al-Hazmy, S.M.</creatorcontrib><creatorcontrib>Ebeid, E.M.</creatorcontrib><creatorcontrib>El-Daly, S.A.</creatorcontrib><title>A new coumarin laser dye 3-(benzothiazol-2-yl)-7-hydroxycoumarin</title><title>Optics and laser technology</title><description>The electronic absorption, and emission spectra as well as fluorescence quantum yield of 3-(benzothiazol-2-yl)-7-hydroxycoumarin (BTHC) were measured in different solvents and are affected by solvent polarity (Δ
f). The deprotonation of BTHC by triethylamine is a reversible process. BTHC is relatively photostable, the quantum yield of photodecomposition (
φ
c) was found to be 2×10
−4 and 2.7×10
−4 in EtOH and DMF, respectively. The fluorescence lifetimes of BTHC were measured in the absence and in the presence of molecular oxygen and were found to be 2.82 and
2.78
ns
, respectively. BTHC acts as good laser dye upon pumping with nitrogen laser
(λ
ex
=337.1
nm)
in ethanol and gives laser emission with maxima at 508 and
522
nm
.</description><subject>3-(benzothiazol-2-yl)-7-hydroxycoumarin</subject><subject>Dye lasers</subject><subject>Exact sciences and technology</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Laser dyes</subject><subject>Lasers</subject><subject>Lifetime</subject><subject>Medium effect</subject><subject>Optical materials</subject><subject>Optics</subject><subject>Physics</subject><subject>Polymers and organics</subject><issn>0030-3992</issn><issn>1879-2545</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LAzEQhoMoWKu_wb0oekjN1yabm6X4BQUveg5pdpamrJuabNXtr3eXVj0KAwPD874z8yJ0TsmEEipvVpOwbmubWnATRoiYDEX4ARrRQmnMcpEfolE_IZhrzY7RSUor0oMy5yN0O80a-Mxc2LzZ6JusN4KYlR1kHF8toNmGduntNtSY4a6-xgovuzKGr-5HcYqOKlsnONv3MXq9v3uZPeL588PTbDrHjivZ4oUoKdEaFgwkBVsWhdB2QZyTXCgrOS2ppU6XShQ50UJWTDHNOXGUCFZxxcfocue7juF9A6k1bz45qGvbQNgkw4pccVkMoNqBLoaUIlRmHX1_amcoMUNiZmV-EzNDYmYownvlxX6FTc7WVbSN8-lPLkWeq4L23HTHQf_vh4dokvPQOCh9BNeaMvh_d30DBDSESA</recordid><startdate>20050401</startdate><enddate>20050401</enddate><creator>Azim, S.A.</creator><creator>Al-Hazmy, S.M.</creator><creator>Ebeid, E.M.</creator><creator>El-Daly, S.A.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>20050401</creationdate><title>A new coumarin laser dye 3-(benzothiazol-2-yl)-7-hydroxycoumarin</title><author>Azim, S.A. ; Al-Hazmy, S.M. ; Ebeid, E.M. ; El-Daly, S.A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c376t-b4d1099eb2e61ead8849ab0cc6347a631d1a1c9d74850946f2729330c1042f373</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>3-(benzothiazol-2-yl)-7-hydroxycoumarin</topic><topic>Dye lasers</topic><topic>Exact sciences and technology</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Laser dyes</topic><topic>Lasers</topic><topic>Lifetime</topic><topic>Medium effect</topic><topic>Optical materials</topic><topic>Optics</topic><topic>Physics</topic><topic>Polymers and organics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Azim, S.A.</creatorcontrib><creatorcontrib>Al-Hazmy, S.M.</creatorcontrib><creatorcontrib>Ebeid, E.M.</creatorcontrib><creatorcontrib>El-Daly, S.A.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>Optics and laser technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Azim, S.A.</au><au>Al-Hazmy, S.M.</au><au>Ebeid, E.M.</au><au>El-Daly, S.A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A new coumarin laser dye 3-(benzothiazol-2-yl)-7-hydroxycoumarin</atitle><jtitle>Optics and laser technology</jtitle><date>2005-04-01</date><risdate>2005</risdate><volume>37</volume><issue>3</issue><spage>245</spage><epage>249</epage><pages>245-249</pages><issn>0030-3992</issn><eissn>1879-2545</eissn><coden>OLTCAS</coden><abstract>The electronic absorption, and emission spectra as well as fluorescence quantum yield of 3-(benzothiazol-2-yl)-7-hydroxycoumarin (BTHC) were measured in different solvents and are affected by solvent polarity (Δ
f). The deprotonation of BTHC by triethylamine is a reversible process. BTHC is relatively photostable, the quantum yield of photodecomposition (
φ
c) was found to be 2×10
−4 and 2.7×10
−4 in EtOH and DMF, respectively. The fluorescence lifetimes of BTHC were measured in the absence and in the presence of molecular oxygen and were found to be 2.82 and
2.78
ns
, respectively. BTHC acts as good laser dye upon pumping with nitrogen laser
(λ
ex
=337.1
nm)
in ethanol and gives laser emission with maxima at 508 and
522
nm
.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.optlastec.2004.04.003</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0030-3992 |
| ispartof | Optics and laser technology, 2005-04, Vol.37 (3), p.245-249 |
| issn | 0030-3992 1879-2545 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_28573687 |
| source | Elsevier |
| subjects | 3-(benzothiazol-2-yl)-7-hydroxycoumarin Dye lasers Exact sciences and technology Fundamental areas of phenomenology (including applications) Laser dyes Lasers Lifetime Medium effect Optical materials Optics Physics Polymers and organics |
| title | A new coumarin laser dye 3-(benzothiazol-2-yl)-7-hydroxycoumarin |
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