D D Bhawalkar
Articles written in Pramana – Journal of Physics
Volume 12 Issue 3 March 1979 pp 263-268 Optics
Output characteristics of a 400 MW Nd:glass laser system
R Bhatnagar P D Gupta B S Narayan M Anwar B L Gupta D D Bhawalkar
The paper discusses the performance characteristics of a Nd: glass laser system designed for laser produced plasma studies. It consists of a
Volume 31 Issue 1 July 1988 pp 41-45 Atomic And Molecular Physics
Relaxation oscillation studies in Nd: YAG laser—Some new results
S M Oak T P S Nathan D D Bhawalkar
The study of transient behaviour of a pulse pumped solid state laser system has assumed importance on account of SLM generation by self-seeding with the pre-lase signal. This paper reports on the observations of seed pulses for two different Nd: YAG laser rods, one with anti-reflection coating (AR) on end faces and the other without. The latter displays single longitudinal mode behaviour in each of the relaxation pulse train while the former displays multimode behaviour. Our observations are well explained by the ‘active etalon concept’ introduced earlier.
Volume 50 Issue 6 June 1998 pp 467-484
Synchrotron radiation sources INDUS-1 and INDUS-2
D D Bhawalkar G Singh R V Nandedkar
The synchrotron radiation sources, INDUS-1 and INDUS-2 are electron storage rings of 450 MeV and 2 GeV beam energies respectively. INDUS-1 is designed to produce VUV radiation whereas INDUS-2 will be mainly used to produce x-rays. INDUS-1 is presently undergoing commissioning whereas INDUS-2 is under construction. Both these rings have a common injector system comprising of a microtron and a synchrotron. Basic design features of these sources and their injector system are discussed in this paper. The radiation beamlines to be set up on these sources are also described.
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