Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Ranjit D. Pradhan"'
Publikováno v:
Dental Materials. 18:221-226
Objectives: The purpose of this study was to investigate the effect of the spectral distribution of the curing irradiation near the maximum excitation wavelength of the photo-initiator and the effect of the irradiation spot size on the scraping depth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b926de41ea549c38ff9f0318a0e6a9aa
https://doi.org/10.1016/s0109-5641(01)00037-9
https://doi.org/10.1016/s0109-5641(01)00037-9
Publikováno v:
Journal of Applied Physics. 91:3125-3128
We report on a detailed study of laser damage in a semiorganic nonlinear optical crystal, zinc (tris) thiourea sulfate using eight nanosecond laser pulses with a repetition rate of 10 Hz at wavelengths of 532 and 1064 nm. The damage morphology shows
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03acfda360fb458a87732486991dfa2d
https://doi.org/10.1063/1.1436287
https://doi.org/10.1063/1.1436287
Publikováno v:
Journal of Applied Physics. 89:4939-4943
We demonstrate a novel use of the pump-probe thermal lens spectroscopy and Z-scan techniques for the measurement of the small absorption coefficient in a semiorganic, nonlinear optical crystal zinc (tris) thiourea sulphate. We measure the absorption
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7afa63635e8d905f4eab252e68c5b11d
https://doi.org/10.1063/1.1358325
https://doi.org/10.1063/1.1358325
Autor:
Ranjit D. Pradhan, George H. Watson
Publikováno v:
Physical Review B. 60:2410-2415
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d6c3dbace68130a175f73870952d9ae
https://doi.org/10.1103/physrevb.60.2410
https://doi.org/10.1103/physrevb.60.2410
Publikováno v:
Physical Review B. 55:9503-9507
Self-ordering colloidal systems are being recognized as possible candidates for optical photonic crystals. Such structures exhibit three-dimensional periodicity in refractive index, and possess lattice dimensions comparable to optical wavelengths. Re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b60e9bec450f6065e7a0d7056944a4a
https://doi.org/10.1103/physrevb.55.9503
https://doi.org/10.1103/physrevb.55.9503
Autor:
Ranjit D. Pradhan, Victor Grubsky, Wondwosen Mengesha, Yunping Yang, Volodymyr Romanov, Gennady Medvedkin, Ihor Berezhnyy, Igor Mariyenko, Tomasz P. Jannson, Gajendra Savant
Publikováno v:
Proceedings of SPIE.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6f659fa93f2939a98eae99e8fe93096
https://doi.org/10.1117/12.830510
https://doi.org/10.1117/12.830510
Publikováno v:
Applied Physics Letters. 75:3261-3263
We show that optical interference of two input beams coupled into a periodically segmented KTiOPO4 waveguide can increase the efficiency of the generated second harmonic by a factor of three over coupling a single beam with the same total power. A si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d02bc28ddf3dfb5b19b313eaceb7f0e
https://doi.org/10.1063/1.125318
https://doi.org/10.1063/1.125318
Publikováno v:
Applied Physics Letters. 73:3809-3811
We show that for continuous wave second-harmonic generation using quasiphase matching in periodically segmented waveguides, thermal loading caused by the fundamental and the generated beams degrades the quasiphase matching condition which corrupts th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::068b7579b2bc45f185c97522d4762bde
https://doi.org/10.1063/1.122901
https://doi.org/10.1063/1.122901
Publikováno v:
CLEO '97., Summaries of Papers Presented at the Conference on Lasers and Electro-Optics.
Electromagnetic wave propagation through an extended periodic dielectric medium can be forbidden for a certain frequency range, regardless of the direction of propagation, leading to the formation of a photonic band gap (PBG).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e23849ae97f4dda760b0c982c2bb030
https://doi.org/10.1109/cleo.1997.603547
https://doi.org/10.1109/cleo.1997.603547
Publikováno v:
CLEO '97., Summaries of Papers Presented at the Conference on Lasers and Electro-Optics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35d074406cb0e53b5c1e6a63182b2f97
https://doi.org/10.1109/cleo.1997.603103
https://doi.org/10.1109/cleo.1997.603103