Self induced focusing and defocusing of femtosecond pulses in Raman-active media
The results of analytical and numerical investigation of the propagation of space-limited ultrashort (pulse duration is shorter than all the relaxation times and the time scale of the medium response) light pulse in Raman-active media are represented. This process shown reveals a number of novel spe...
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| creator | Isakov, Vladimir A Kanavin, Andrei P Smetanin, Igor V |
| description | The results of analytical and numerical investigation of the propagation of space-limited ultrashort (pulse duration is shorter than all the relaxation times and the time scale of the medium response) light pulse in Raman-active media are represented. This process shown reveals a number of novel specific features. It is found that at definite pulse energy the self- induced focusing is replaced by the self-induced defocusing which is again followed by the selffocusing. As a result a light channel which consists of a train of moving focuses occurs on the light beam axis. The rate of self-induced focusing and defocusing processes for this propagation regime is inversely proportional to the pulse field intensity, which is contrary to the conventional selffocusing theory. |
| doi_str_mv | 10.1117/12.239801 |
| format | Conference Proceeding |
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This process shown reveals a number of novel specific features. It is found that at definite pulse energy the self- induced focusing is replaced by the self-induced defocusing which is again followed by the selffocusing. As a result a light channel which consists of a train of moving focuses occurs on the light beam axis. 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This process shown reveals a number of novel specific features. It is found that at definite pulse energy the self- induced focusing is replaced by the self-induced defocusing which is again followed by the selffocusing. As a result a light channel which consists of a train of moving focuses occurs on the light beam axis. The rate of self-induced focusing and defocusing processes for this propagation regime is inversely proportional to the pulse field intensity, which is contrary to the conventional selffocusing theory.</description><subject>Amorphous materials</subject><subject>Delay effects</subject><subject>Laser excitation</subject><subject>Optical pulses</subject><subject>Optical scattering</subject><subject>Probes</subject><subject>Pulse amplifiers</subject><subject>Pulse measurements</subject><subject>Pump lasers</subject><subject>Ultrafast optics</subject><issn>0277-786X</issn><isbn>9781557524447</isbn><isbn>1557524440</isbn><isbn>9780819421852</isbn><isbn>0819421855</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1996</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNpVkE1LAzEQhgMqWGoPXj3t1cPWTDbJbI5StRYKFqvgbUmTSYl0d0u3Ffz3pq4ozmE-eOeZgZexS-BjAMAbEGNRmJLDCRsZLEEpVEJKiadswAVijqV-O2ejrnvnKaQseAEDtljSJmSx8QdHPgutO3SxWWe28Zmn37ENWaB633bk2qRsD5uOukRlz7a2TW7dPn5QVpOP9oKdBZvk0U8dsteH-5fJYz5_ms4mt_M8gpaQg1AYCC1qveKy8BIQwQgF4JwryWmvgkWBRrhgSq-tJeRGkV9ZpZzBYsiu-7vdNlK13bWO0vtm3VXAq6MjFYiqdyTtin-7sba7z2qxnC3vpjyZY_BoCYfvVPZ9gq56KBL9QaVWSuviC1SSaI4</recordid><startdate>1996</startdate><enddate>1996</enddate><creator>Isakov, Vladimir A</creator><creator>Kanavin, Andrei P</creator><creator>Smetanin, Igor V</creator><general>IEEE</general><general>SPIE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>1996</creationdate><title>Self induced focusing and defocusing of femtosecond pulses in Raman-active media</title><author>Isakov, Vladimir A ; Kanavin, Andrei P ; Smetanin, Igor V</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i1641-1257fe7a766b043d4177192511ccc8ec6d5fa72792cf98d6aae7095edba55c973</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Amorphous materials</topic><topic>Delay effects</topic><topic>Laser excitation</topic><topic>Optical pulses</topic><topic>Optical scattering</topic><topic>Probes</topic><topic>Pulse amplifiers</topic><topic>Pulse measurements</topic><topic>Pump lasers</topic><topic>Ultrafast optics</topic><toplevel>online_resources</toplevel><creatorcontrib>Isakov, Vladimir A</creatorcontrib><creatorcontrib>Kanavin, Andrei P</creatorcontrib><creatorcontrib>Smetanin, Igor V</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Isakov, Vladimir A</au><au>Kanavin, Andrei P</au><au>Smetanin, Igor V</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Self induced focusing and defocusing of femtosecond pulses in Raman-active media</atitle><btitle>Proceedings of SPIE</btitle><stitle>QELS</stitle><date>1996</date><risdate>1996</risdate><volume>2797</volume><issue>1</issue><spage>56</spage><epage>57</epage><pages>56-57</pages><issn>0277-786X</issn><isbn>9781557524447</isbn><isbn>1557524440</isbn><isbn>9780819421852</isbn><isbn>0819421855</isbn><coden>PSISDG</coden><abstract>The results of analytical and numerical investigation of the propagation of space-limited ultrashort (pulse duration is shorter than all the relaxation times and the time scale of the medium response) light pulse in Raman-active media are represented. This process shown reveals a number of novel specific features. It is found that at definite pulse energy the self- induced focusing is replaced by the self-induced defocusing which is again followed by the selffocusing. As a result a light channel which consists of a train of moving focuses occurs on the light beam axis. The rate of self-induced focusing and defocusing processes for this propagation regime is inversely proportional to the pulse field intensity, which is contrary to the conventional selffocusing theory.</abstract><pub>IEEE</pub><doi>10.1117/12.239801</doi><tpages>2</tpages></addata></record> |
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| identifier | ISSN: 0277-786X |
| ispartof | Proceedings of SPIE, 1996, Vol.2797 (1), p.56-57 |
| issn | 0277-786X |
| language | eng |
| recordid | cdi_ieee_primary_865566 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Amorphous materials Delay effects Laser excitation Optical pulses Optical scattering Probes Pulse amplifiers Pulse measurements Pump lasers Ultrafast optics |
| title | Self induced focusing and defocusing of femtosecond pulses in Raman-active media |
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