NDLI: Near-Field Diffractive Optical Pumping of a Laser Medium

Content Provider	Springer Nature Link
Author	Bisson, Jean François Shirakawa, Akira Sato, Youhei Senatsky, Yuri Ueda, Ken Ichi
Copyright Year	2004
Abstract	A Nd:YAG rod active element placed inside a resonator was pumped by the second harmonic radiation (the wavelength λ=0.532 μm) of a Q-switched Nd:YAG laser diffracted at a circular aperture. Various distributions of pumping intensity in the Fresnel (near-field) region along the direction of the pump beam diffraction were produced. Inversion profiles with maxima or minima at the resonator axis were formed in the active element, depending on its distance from the circular aperture. Gain-switched operation of the Nd:YAG rod laser at λ=1.064 μm is reported at the fundamental mode and also at the TEM01, TEM01* and other higher-order modes for different positions of the active element in the near-field region. Applications of such diffractive optical pumping for the concentration of the pumping radiation into the active media and for laser beam profling are discussed. © 2004 The Optical Society of Japan
Starting Page	353
Ending Page	357
Page Count	5
File Format	PDF
ISSN	13406000
Journal	Optical Review
Volume Number	11
Issue Number	6
e-ISSN	13499432
Language	English
Publisher	Springer-Verlag
Publisher Date	2004-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	diffractive optical pumping laser ceramics mode selection hollow beams Electromagnetism, Optics and Lasers
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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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
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