Intense terahertz generation in two-color laser filamentation: energy scaling with terawatt laser systems
We investigate high-power terahertz (THz) generation in two-color laser filamentation using terawatt (TW) lasers including a 0.5 TW, 1 kHz system, as well as 2 and 30 TW systems both operating at 10 Hz. With these lasers, we study the macroscopic effect in filamentation that governs THz output energ...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2013-01-01
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| Series: | New Journal of Physics |
| Online Access: | https://doi.org/10.1088/1367-2630/15/7/075002 |
| _version_ | 1797751436087394304 |
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| author | T I Oh Y S You N Jhajj E W Rosenthal H M Milchberg K Y Kim |
| author_facet | T I Oh Y S You N Jhajj E W Rosenthal H M Milchberg K Y Kim |
| author_sort | T I Oh |
| collection | DOAJ |
| description | We investigate high-power terahertz (THz) generation in two-color laser filamentation using terawatt (TW) lasers including a 0.5 TW, 1 kHz system, as well as 2 and 30 TW systems both operating at 10 Hz. With these lasers, we study the macroscopic effect in filamentation that governs THz output energy yields and radiation profiles in the far field. We also characterize the radiation spectra at a broad range of frequencies covering radio–micro-waves to infrared frequencies. In particular, our 1 kHz THz source can provide high-energy (>1 μ J), high average power (>1 mW), intense (>1 MV cm ^−1 ) and broadband (0.01–60 THz) THz radiation via two-color filamentation in air. Based on our scaling law, an ∼30 TW laser can produce >0.1 mJ of THz radiation with multi-gigawatt peak power in ∼1.5 m long filamentation. |
| first_indexed | 2024-03-12T16:49:31Z |
| format | Article |
| id | doaj.art-524bc2425d51418b98ecccca7f3e07d9 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:49:31Z |
| publishDate | 2013-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-524bc2425d51418b98ecccca7f3e07d92023-08-08T11:25:13ZengIOP PublishingNew Journal of Physics1367-26302013-01-0115707500210.1088/1367-2630/15/7/075002Intense terahertz generation in two-color laser filamentation: energy scaling with terawatt laser systemsT I Oh0Y S You1N Jhajj2E W Rosenthal3H M Milchberg4K Y Kim5Institute for Research in Electronics and Applied Physics, University of Maryland , Building 223, Paint Branch Drive, College Park, MD 20742, USAInstitute for Research in Electronics and Applied Physics, University of Maryland , Building 223, Paint Branch Drive, College Park, MD 20742, USAInstitute for Research in Electronics and Applied Physics, University of Maryland , Building 223, Paint Branch Drive, College Park, MD 20742, USAInstitute for Research in Electronics and Applied Physics, University of Maryland , Building 223, Paint Branch Drive, College Park, MD 20742, USAInstitute for Research in Electronics and Applied Physics, University of Maryland , Building 223, Paint Branch Drive, College Park, MD 20742, USAInstitute for Research in Electronics and Applied Physics, University of Maryland , Building 223, Paint Branch Drive, College Park, MD 20742, USAWe investigate high-power terahertz (THz) generation in two-color laser filamentation using terawatt (TW) lasers including a 0.5 TW, 1 kHz system, as well as 2 and 30 TW systems both operating at 10 Hz. With these lasers, we study the macroscopic effect in filamentation that governs THz output energy yields and radiation profiles in the far field. We also characterize the radiation spectra at a broad range of frequencies covering radio–micro-waves to infrared frequencies. In particular, our 1 kHz THz source can provide high-energy (>1 μ J), high average power (>1 mW), intense (>1 MV cm ^−1 ) and broadband (0.01–60 THz) THz radiation via two-color filamentation in air. Based on our scaling law, an ∼30 TW laser can produce >0.1 mJ of THz radiation with multi-gigawatt peak power in ∼1.5 m long filamentation.https://doi.org/10.1088/1367-2630/15/7/075002 |
| spellingShingle | T I Oh Y S You N Jhajj E W Rosenthal H M Milchberg K Y Kim Intense terahertz generation in two-color laser filamentation: energy scaling with terawatt laser systems New Journal of Physics |
| title | Intense terahertz generation in two-color laser filamentation: energy scaling with terawatt laser systems |
| title_full | Intense terahertz generation in two-color laser filamentation: energy scaling with terawatt laser systems |
| title_fullStr | Intense terahertz generation in two-color laser filamentation: energy scaling with terawatt laser systems |
| title_full_unstemmed | Intense terahertz generation in two-color laser filamentation: energy scaling with terawatt laser systems |
| title_short | Intense terahertz generation in two-color laser filamentation: energy scaling with terawatt laser systems |
| title_sort | intense terahertz generation in two color laser filamentation energy scaling with terawatt laser systems |
| url | https://doi.org/10.1088/1367-2630/15/7/075002 |
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