Temporal evolution study of the plasma induced by CO2 pulsed laser on targets of titanium oxides
This paper reports studies on time-resolved laser induced breakdown spectroscopy (LIBS) of plasmas induced by IR nanosecond laser pulses on the titanium oxides TiO and TiO2 (anatase). LIBS excitation was performed using a CO2 laser. The laser-induced plasma was found strongly ionized yielding Ti+, O...
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| Veröffentlicht in: | Spectrochimica acta. Part B: Atomic spectroscopy 2013-08, Vol.86, p.88-93 |
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| creator | Diaz, L. Camacho, J.J. Sanz, M. Hernández, M. Jandova, V. Castillejo, M. |
| description | This paper reports studies on time-resolved laser induced breakdown spectroscopy (LIBS) of plasmas induced by IR nanosecond laser pulses on the titanium oxides TiO and TiO2 (anatase). LIBS excitation was performed using a CO2 laser. The laser-induced plasma was found strongly ionized yielding Ti+, O+, Ti2+, O2+, Ti3+, and Ti4+ species and rich in neutral titanium and oxygen atoms. The temporal behavior of specific emission lines of Ti, Ti+, Ti2+ and Ti3+ was characterized. The results show a faster decay of Ti3+ and Ti2+ ionic species than that of Ti+ and neutral Ti atoms. Spectroscopic diagnostics were used to determine the time-resolved electron density and excitation temperatures. Laser irradiation of TiO2-anatase induces on the surface sample the polymorphic transformation to TiO2-rutile. The dependence on fluence and number of irradiation pulses of this transformation was studied by micro-Raman spectroscopy.
•Plasma plumes of Titanium oxides have been characterized by high resolution LIBS.•Emissions are due to relaxation of excited Ti+, O+, Ti2+, O2+, Ti3+, and Ti4+.•Plasma temperature is measured at different delays, the maximum is around 23,000K.•The electron density value after 0.1μs is nearly constant around 6×1016cm−3.•Above ablation threshold, anatase–rutile transformation shows an incubation effect. |
| doi_str_mv | 10.1016/j.sab.2013.06.002 |
| format | Article |
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•Plasma plumes of Titanium oxides have been characterized by high resolution LIBS.•Emissions are due to relaxation of excited Ti+, O+, Ti2+, O2+, Ti3+, and Ti4+.•Plasma temperature is measured at different delays, the maximum is around 23,000K.•The electron density value after 0.1μs is nearly constant around 6×1016cm−3.•Above ablation threshold, anatase–rutile transformation shows an incubation effect.</description><identifier>ISSN: 0584-8547</identifier><identifier>EISSN: 1873-3565</identifier><identifier>DOI: 10.1016/j.sab.2013.06.002</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Excitation ; High-power IR CO2 pulsed laser ; Irradiation ; Laser induced breakdown spectroscopy ; Lasers ; Spectroscopy ; Time of flight measurement ; Time-resolved optical emission spectroscopy ; Titanium ; Titanium dioxide ; Titanium oxides ; Transformations</subject><ispartof>Spectrochimica acta. Part B: Atomic spectroscopy, 2013-08, Vol.86, p.88-93</ispartof><rights>2013 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c363t-6c0310408efc17ae327279d3a1f472882b35bab8ed11c9de5691fcaede43b303</citedby><cites>FETCH-LOGICAL-c363t-6c0310408efc17ae327279d3a1f472882b35bab8ed11c9de5691fcaede43b303</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.sab.2013.06.002$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids></links><search><creatorcontrib>Diaz, L.</creatorcontrib><creatorcontrib>Camacho, J.J.</creatorcontrib><creatorcontrib>Sanz, M.</creatorcontrib><creatorcontrib>Hernández, M.</creatorcontrib><creatorcontrib>Jandova, V.</creatorcontrib><creatorcontrib>Castillejo, M.</creatorcontrib><title>Temporal evolution study of the plasma induced by CO2 pulsed laser on targets of titanium oxides</title><title>Spectrochimica acta. Part B: Atomic spectroscopy</title><description>This paper reports studies on time-resolved laser induced breakdown spectroscopy (LIBS) of plasmas induced by IR nanosecond laser pulses on the titanium oxides TiO and TiO2 (anatase). LIBS excitation was performed using a CO2 laser. The laser-induced plasma was found strongly ionized yielding Ti+, O+, Ti2+, O2+, Ti3+, and Ti4+ species and rich in neutral titanium and oxygen atoms. The temporal behavior of specific emission lines of Ti, Ti+, Ti2+ and Ti3+ was characterized. The results show a faster decay of Ti3+ and Ti2+ ionic species than that of Ti+ and neutral Ti atoms. Spectroscopic diagnostics were used to determine the time-resolved electron density and excitation temperatures. Laser irradiation of TiO2-anatase induces on the surface sample the polymorphic transformation to TiO2-rutile. The dependence on fluence and number of irradiation pulses of this transformation was studied by micro-Raman spectroscopy.
•Plasma plumes of Titanium oxides have been characterized by high resolution LIBS.•Emissions are due to relaxation of excited Ti+, O+, Ti2+, O2+, Ti3+, and Ti4+.•Plasma temperature is measured at different delays, the maximum is around 23,000K.•The electron density value after 0.1μs is nearly constant around 6×1016cm−3.•Above ablation threshold, anatase–rutile transformation shows an incubation effect.</description><subject>Excitation</subject><subject>High-power IR CO2 pulsed laser</subject><subject>Irradiation</subject><subject>Laser induced breakdown spectroscopy</subject><subject>Lasers</subject><subject>Spectroscopy</subject><subject>Time of flight measurement</subject><subject>Time-resolved optical emission spectroscopy</subject><subject>Titanium</subject><subject>Titanium dioxide</subject><subject>Titanium oxides</subject><subject>Transformations</subject><issn>0584-8547</issn><issn>1873-3565</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqNkE1v3CAQQFGVSN18_IDeOOZidwCDvcopWrVppUi57J1gGKesbOMAjrL_viTbc5UTQrw3Ix4h3xjUDJj6fqiT6WsOTNSgagD-hWxY14pKSCXPyAZk11SdbNqv5CKlAxRCcrkhT3uclhDNSPE1jGv2YaYpr-5Iw0DzH6TLaNJkqJ_datHR_kh3j5wu65jKrbxhpEXJJj5jTh-Sz2b260TDm3eYrsj5YAp8_e-8JPufP_a7X9XD4_3v3d1DZYUSuVIWBIMGOhwsaw0K3vJ264RhQ9PyruO9kL3pO3SM2a1DqbZssAYdNqIXIC7JzWnsEsPLiinrySeL42hmDGvSTCmAIrXNJ9CyueUKZEHZCbUxpBRx0Ev0k4lHzUC_d9cHXbrr9-4alC5Vi3N7crD89tVj1Ml6nEs8H9Fm7YL_j_0XSqqLHg</recordid><startdate>20130801</startdate><enddate>20130801</enddate><creator>Diaz, L.</creator><creator>Camacho, J.J.</creator><creator>Sanz, M.</creator><creator>Hernández, M.</creator><creator>Jandova, V.</creator><creator>Castillejo, M.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20130801</creationdate><title>Temporal evolution study of the plasma induced by CO2 pulsed laser on targets of titanium oxides</title><author>Diaz, L. ; Camacho, J.J. ; Sanz, M. ; Hernández, M. ; Jandova, V. ; Castillejo, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c363t-6c0310408efc17ae327279d3a1f472882b35bab8ed11c9de5691fcaede43b303</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Excitation</topic><topic>High-power IR CO2 pulsed laser</topic><topic>Irradiation</topic><topic>Laser induced breakdown spectroscopy</topic><topic>Lasers</topic><topic>Spectroscopy</topic><topic>Time of flight measurement</topic><topic>Time-resolved optical emission spectroscopy</topic><topic>Titanium</topic><topic>Titanium dioxide</topic><topic>Titanium oxides</topic><topic>Transformations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Diaz, L.</creatorcontrib><creatorcontrib>Camacho, J.J.</creatorcontrib><creatorcontrib>Sanz, M.</creatorcontrib><creatorcontrib>Hernández, M.</creatorcontrib><creatorcontrib>Jandova, V.</creatorcontrib><creatorcontrib>Castillejo, M.</creatorcontrib><collection>CrossRef</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Spectrochimica acta. Part B: Atomic spectroscopy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Diaz, L.</au><au>Camacho, J.J.</au><au>Sanz, M.</au><au>Hernández, M.</au><au>Jandova, V.</au><au>Castillejo, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Temporal evolution study of the plasma induced by CO2 pulsed laser on targets of titanium oxides</atitle><jtitle>Spectrochimica acta. Part B: Atomic spectroscopy</jtitle><date>2013-08-01</date><risdate>2013</risdate><volume>86</volume><spage>88</spage><epage>93</epage><pages>88-93</pages><issn>0584-8547</issn><eissn>1873-3565</eissn><abstract>This paper reports studies on time-resolved laser induced breakdown spectroscopy (LIBS) of plasmas induced by IR nanosecond laser pulses on the titanium oxides TiO and TiO2 (anatase). LIBS excitation was performed using a CO2 laser. The laser-induced plasma was found strongly ionized yielding Ti+, O+, Ti2+, O2+, Ti3+, and Ti4+ species and rich in neutral titanium and oxygen atoms. The temporal behavior of specific emission lines of Ti, Ti+, Ti2+ and Ti3+ was characterized. The results show a faster decay of Ti3+ and Ti2+ ionic species than that of Ti+ and neutral Ti atoms. Spectroscopic diagnostics were used to determine the time-resolved electron density and excitation temperatures. Laser irradiation of TiO2-anatase induces on the surface sample the polymorphic transformation to TiO2-rutile. The dependence on fluence and number of irradiation pulses of this transformation was studied by micro-Raman spectroscopy.
•Plasma plumes of Titanium oxides have been characterized by high resolution LIBS.•Emissions are due to relaxation of excited Ti+, O+, Ti2+, O2+, Ti3+, and Ti4+.•Plasma temperature is measured at different delays, the maximum is around 23,000K.•The electron density value after 0.1μs is nearly constant around 6×1016cm−3.•Above ablation threshold, anatase–rutile transformation shows an incubation effect.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.sab.2013.06.002</doi><tpages>6</tpages></addata></record> |
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| subjects | Excitation High-power IR CO2 pulsed laser Irradiation Laser induced breakdown spectroscopy Lasers Spectroscopy Time of flight measurement Time-resolved optical emission spectroscopy Titanium Titanium dioxide Titanium oxides Transformations |
| title | Temporal evolution study of the plasma induced by CO2 pulsed laser on targets of titanium oxides |
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