NDLI: Effect of laser shape and plasma density on THz Generation

Content Provider	IEEE Xplore Digital Library
Author	Malik, A.K. Malik, H.K.
Copyright Year	2013
Description	Author affiliation: Dept. of Phys., Indian Inst. of Technol., New Delhi, New Delhi, India (Malik, A.K.; Malik, H.K.)
Abstract	Summary form only given. The development of new and improved terahertz (THz) sources and detectors has become an important research area due to its diverse applications in material characterization, imaging, topography and remote sensing [1], chemical and security identification [2,3], etc. Several schemes, like tunable THz generation by superluminous laser pulse interaction with large band gap semiconductors and electro-optic crystals viz. ZnSe, ZnTe, GaSe, GaP and $LiNbO_{3}$ have been proposed [4,5]. The other route for THz radiation generation is the laser and plasma interaction [6, 7]. We talk about the THz radiation generation using plasma as a medium, and propose THz generation by photomixing of two laser beams with different spatial field profiles (shapes) in rippled density plasma in the presence of DC magnetic field. Our calculations reveal that more collimated and higher electric field THz radiation can be achieved at a desired position if the lasers with special field profiles are employed. The magnitude of THz field can be further enhanced with large amplitude and narrow ripples in the plasma density.
Starting Page	1
Ending Page	1
File Size	104220
Page Count	1
File Format	PDF
ISBN	9781467351713
ISSN	07309244
DOI	10.1109/PLASMA.2013.6634772
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gas lasers Semiconductor lasers Optimized production technology Shape Plasma density
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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Utilization of a laser-induced plasma as a conductive pathway

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Production of specially tailored laser pulses

Effect of laser shape and plasma density on THz Generation

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