Zobrazeno 1 - 10
of 10
pro vyhledávání: '"T Reghunath"'
Publikováno v:
Applied optics. 27(18)
The split-pulse laser method is used to reinvestigate the optical attenuation of distilled water in the region from 430 to 630 nm. The studies are then extended to ionic solutions of NaCl, MgCl(2), and Na(2)SO(4), these salts forming the major consti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9ab2baf3c84f32ff65bfff26c4b88ab
https://pubmed.ncbi.nlm.nih.gov/20539483
https://pubmed.ncbi.nlm.nih.gov/20539483
Autor:
S. Raghuveer, P. Chandrasekhar, M. Ravishamkar, K. Sathianandan, B. Raghavendra Prasad, V. P. N. Nampoori, V. Venkataramanan, R. Krishnamohan, P. S. Narayana, C. K. Subramanian, A. T. Reghunath, D. Victor Suviseshamuthu
Publikováno v:
Defence Science Journal. 41:1-20
A review of the present knowledge about the origin of blue-green window in the attenuation spectrum of ocean waters is presented. The various physical mechanisms which contribute to the formation of the w-indow are dealt separately and discussed. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5bfd19d73360df8b6e4422191409311
https://doi.org/10.14429/dsj.41.4401
https://doi.org/10.14429/dsj.41.4401
Publikováno v:
SPIE Proceedings.
The design of an efficient optical parametric oscillator (OPO) tunable in the range of 2.3 to 4.5 micron, as LIDAR source, for sensitive, selective and rapid remote detection and measurement of atmospheric trace gases at ranges upto 5 km is described
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7552ae16fd0696a0d779cd84e0ff158a
https://doi.org/10.1117/12.697916
https://doi.org/10.1117/12.697916
Publikováno v:
SPIE Proceedings.
The strength of backscattered signals for a Differential Absorption Lidar (DIAL) system operating in the mid infrared band is estimated for the cases of (i) back scattering from topographic targets and (ii) Mie scattering from the aerosols. The estim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a6011befb795be6ee71ec922c3c4372
https://doi.org/10.1117/12.697919
https://doi.org/10.1117/12.697919
Publikováno v:
[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics.
The time evolution of a phase grating was studied. The studies were carried out using pure LiNbO/sub 3/ and a Fe-doped samples. The formation and erasure times of the phase grating and the phase conjugate signal were measured using a 488-nm wavelengt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7edf0499c6f020ce4a4fa028ad4dc326
https://doi.org/10.1109/isaf.1990.200291
https://doi.org/10.1109/isaf.1990.200291
Publikováno v:
Applied Optics. 31:4905
Optical phase conjugation in methylene blue sensitized gelatin film has been obtained with 514.5-nm radiation from an argon-ion laser with power levels as low as 50 mW/cm(2) for the pump beam in a degenerate four-wavemixing configuration. The film wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2111bab55a87aae06986049ce59a0da3
https://doi.org/10.1364/ao.31.004905
https://doi.org/10.1364/ao.31.004905
Autor:
A. T. Reghunath, V. P. N. Nampoori
Publikováno v:
Journal of Optics. 17:87-90
The properties of atmospheric turbulence are simulated in the laboratory and the probability distribution of a laser beam propagated through the turbulent medium is studied. Turbulence is generated by creating a vertical temperature gradient in a liq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f42b6c1bbaa0508b1070e392e359cff
https://doi.org/10.1007/bf03549185
https://doi.org/10.1007/bf03549185
Autor:
V. P. N. Nampoori, A T Reghunath
Publikováno v:
Pramana. 29:461-467
Using laser transmission, the characteristics of hydrodynamic turbulence is studied following one of the recently developed technique in nonlinear dynamics. The existence of deterministic chaos in turbulence is proved by evaluating two invariants viz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdaaf5812566886908224c477002867b
https://doi.org/10.1007/bf02845786
https://doi.org/10.1007/bf02845786
Autor:
T M Joseph, T Reghunath
Publikováno v:
Indian Journal of Thoracic and Cardiovascular Surgery. 6:82-83
A satisfactory contrast medium for bronchography can be produced by mixing meglumine lothalamate (Conray 280–May & Baker) 20 ml with carboxy methyl cellulose 1.3 gm. Evaluation of its use in over 500 patients shows that it is a safe, simple and sat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f8a0c9ad605e907a523a0f32962eecb
https://doi.org/10.1007/bf02664033
https://doi.org/10.1007/bf02664033
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