{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T00:43:55Z","timestamp":1773103435659,"version":"3.50.1"},"reference-count":25,"publisher":"AIP Publishing","issue":"10","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2013,10,1]]},"abstract":"<jats:p>We experimentally demonstrate that a column of hydrogen plasma generated by an ultra-short (sub-picosecond), moderate intensity (\u223c1015\u201316 W.cm\u20132) laser, radially expands at a higher velocity when using a circularly polarized laser beam instead of a linearly polarized beam. Interferometry shows that after 1\u2009ns there is a clear shock structure formed, that can be approximated to a cylindrical blast wave. The shock velocity was measured for plasmas created with linearly and circularly polarized laser beams, indicating an approximately 20% higher velocity for plasmas generated with a circularly polarized laser beam, thus implying a higher plasma electron temperature. The heating mechanism was determined to be the Above Threshold Ionization effect. The calculated electrum energy spectrum for a circularly polarized laser beam was broader when compared to the one generated by a linearly polarized laser beam, leading to a higher plasma temperature.<\/jats:p>","DOI":"10.1063\/1.4825228","type":"journal-article","created":{"date-parts":[[2013,10,16]],"date-time":"2013-10-16T22:14:32Z","timestamp":1381961672000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":17,"title":["Effects of laser polarization in the expansion of plasma waveguides"],"prefix":"10.1063","volume":"20","author":[{"given":"N.","family":"Lemos","sequence":"first","affiliation":[{"name":"GoLP\/Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico (IST), Universidade T\u00e9cnica de Lisboa (UTL) , 1049-001 Lisbon, Portugal"}]},{"given":"T.","family":"Grismayer","sequence":"additional","affiliation":[{"name":"GoLP\/Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico (IST), Universidade T\u00e9cnica de Lisboa (UTL) , 1049-001 Lisbon, Portugal"}]},{"given":"L.","family":"Cardoso","sequence":"additional","affiliation":[{"name":"GoLP\/Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico (IST), Universidade T\u00e9cnica de Lisboa (UTL) , 1049-001 Lisbon, Portugal"}]},{"given":"J.","family":"Geada","sequence":"additional","affiliation":[{"name":"GoLP\/Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico (IST), Universidade T\u00e9cnica de Lisboa (UTL) , 1049-001 Lisbon, Portugal"}]},{"given":"G.","family":"Figueira","sequence":"additional","affiliation":[{"name":"GoLP\/Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico (IST), Universidade T\u00e9cnica de Lisboa (UTL) , 1049-001 Lisbon, Portugal"}]},{"given":"J. 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