Search Results - "Walsh, B.M."

Amplified spontaneous emission-application to Nd:YAG lasers by Barnes, N.P., Walsh, B.M.

“…Amplified spontaneous emission can seriously degrade the Q-switched performance of a strong four-level transition such as the 1.064 /spl mu/m Nd:YAG transition…”
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Optical transition probabilities of white light emitting Sr2SiO4:Dy3+ nanophosphors for lighting applications using Judd−Ofelt analysis by Manjunath, C., Rudresha, M.S., Walsh, B.M., Krishna, R. Hari, Nagabhushana, B.M., Panigrahi, B.S.

“…Dysprosium doped strontium silicate (Sr2-xSiO4:xDy3+, x = 0–7 mol%) are prepared by solution combustion synthesis and their luminescent behaviour is…”
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Time-resolved and excitation-emission matrix luminescence behaviour of boro-silicate glasses doped with Eu3+ ions for red luminescent application by Nandyala, S.H., Hungerford, G., Santos, J.D., Walsh, B.M., Di Silvio, L., Stamboulis, A.

“…A contour map of the excitation-emission matrix (EEM) of Eu-Te glass and its transitions with a grey and red colour scale representing higher intensity and…”
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Spectroscopic studies of strong red emitting Sr2SiO4:Eu3+ nanophosphors with high color purity for application in WLED using Judd-Ofelt theory and TL glow curve analysis by Manjunath, C., Rudresha, M.S., Krishna, R. Hari, Nagabhushana, B.M., Walsh, B.M., Nagabhushana, K.R., Panigrahi, B.S.

“…Un-doped and Eu3+ doped Sr2SiO4 nanophosphors were synthesized by self-propagating solution combustion synthesis and are characterised with different material…”
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The origin of the local 1/4-keV X-ray flux in both charge exchange and a hot bubble by Galeazzi, M., Chiao, M., Collier, M. R., Cravens, T., Koutroumpa, D., Kuntz, K. D., Lallement, R., Lepri, S. T., McCammon, D., Morgan, K., Porter, F. S., Robertson, I. P., Snowden, S. L., Thomas, N. E., Uprety, Y., Ursino, E., Walsh, B. M.

“…The contribution of solar-wind ions exchanging electrons with helium and hydrogen near the Sun is shown to be only about 40 per cent of the 1/4-keV X-ray flux…”
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Optical absorption intensity analysis using Judd-Ofelt theory and photoluminescence investigation of orange-red Sr2SiO4: Sm3+nanopigments by Manjunath, C., Rudresha, M.S., Walsh, B.M., Hari Krishna, R., Panigrahi, B.S., Nagabhushana, B.M.

“…The Orange-red emitting Sr2SiO4:xSm3+ (x = 0.01–0.09) nanopigments for white light emitting diodes (w-LED's) were prepared by low temperature solution…”
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Optical absorption intensity analysis using Judd-Ofelt theory and photoluminescence investigation of orange-red Sr 2 SiO 4 : Sm 3+ nanopigments by Manjunath, C., Rudresha, M.S., Walsh, B.M., Hari Krishna, R., Panigrahi, B.S., Nagabhushana, B.M.

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Time-resolved and fluorescence excitation-emission matrix measurements of lanthanide (Gd3+, Tb3+ and Dy3+) doped silver-zinc borate glasses by Nandyala, S.H., Walsh, B.M., Hungerford, G., Santos, J.D., Stamboulis, A.

“…•Gd3+, Tb3+ and Dy3+ ions doped borate host glasses have been prepared successfully.•Gd3+ glass shows ultraviolet radiation emission in the range of…”
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Thermoluminescence glow curve analysis of gamma irradiated Sr2SiO4:Dy3+ nanophosphor by Manjunath, C., Rudresha, M.S., Nagabhushana, K.R., Krishna, R. Hari, Nagabhushana, B.M., Walsh, B.M.

“…Undoped and Dy3+ doped nanocrystalline Sr2SiO4 phosphor was synthesised by solution combustion technique. The phosphors were characterised by X-ray diffraction…”
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Comparison of Tm:ZBLAN and Tm:Silica fiber lasers; Spectroscopy and tunable pulsed laser operation around 1.9 μm by WALSH, B. M, BARNES, N. P

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Green, red and near-infrared photon up-conversion in Ga–Ge–Sb–S:Er3+ amorphous chalcogenides by Strizik, L., Zhang, J., Wagner, T., Oswald, J., Kohoutek, T., Walsh, B.M., Prikryl, J., Svoboda, R., Liu, C., Frumarova, B., Frumar, M., Pavlista, M., Park, W.J., Heo, J.

“…We report on compositional tuning in Er3+ ions doped Ga–Ge–Sb–S glassy system allowing for effective 2H11/2→4I15/2 (530nm), 4S3/2→4I15/2 (550nm), 4F9/2→4I15/2…”
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Simultaneous observations of the exterior cusp region by Walsh, B.M., Fritz, T.A., Chen, J.

“…A case study is presented analyzing the properties and spatial extent of the exterior cusp region. The dynamic nature of the exterior cusp makes the large…”
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The cusp as a source of magnetospheric particles by Fritz, T.A., Walsh, B.M., Klida, M., Chen, J.

“…Observations made by a number of satellites have shown that plasma of solar wind/magnetosheath origin enters the high altitude polar cusp creating diamagnetic…”
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Tm:germanate fiber laser : tuning and Q-switching by BARNES, N. P, WALSH, B. M, REICHLE, D. J, DEYOUNG, R. J, SHIBIN JIANG

“…A Tm:germanate fiber laser produced >0.25 mJ/ pulse in a 45 ns pulse. It is capable of producing multiple Q-switched pulses from a single pump pulse. With the…”
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Compositionally tuned 0.94-/spl mu/m lasers: a comparative laser material study and demonstration of 100-mJ Q-switched lasing at 0.946 and 0.9441 /spl mu/m by Walsh, B.M., Barnes, N.P., Hutcheson, R.L., Equall, R.W.

“…A new and innovative composite laser material Nd:YAG/sub x/YSAG/sub 1-x/ has been developed with several objectives in mind; tunability, efficiency, and…”
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Compositionally tuned 0.94-[mu]m lasers: a comparative laser material study and demonstration of 100-mJ Q-switched lasing at 0.946 and 0.9441 [mu]m by Walsh, B.M, Barnes, N.P, Hutcheson, R.L, Equall, R.W

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Compositionally tuned 0.94-μm lasers : A comparative laser material study and demonstration of 100-mJ Q-switched lasing at 0.946 and 0.9441 μm by WALSH, Brian M, BARNES, Norman P, HUTCHESON, Ralph L, EQUALL, Randy W

“…A new and innovative composite laser material Nd:YAG sub(x)YSAG sub(1-x) has been developed with several objectives in mind; tunability, efficiency, and…”
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Asymmetric Time Constants by Barnes, N.P., Walsh, B.M., Reichle, D.J.

“…Time constants for population density rise and decay are often unequal. Asymmetric time constants result from: ground state depletion, up conversion, and…”
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Corrections to "Amplified spontaneous emission-application to Nd:YAG lasers" by Barnes, N.P., Walsh, B.M.

“…In the above-named article, several typographical errors were made on page 104 in the fourth and sixth equations. These are corrected here…”
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Beyond the Wall : a Study Which Explores the Relevance of the Enclosed Garden as a Landscape Architectural Type with Specific Reference to the City of Johannesburg by Walsh, Abigail B.M

“…Creating sanctuary within an inhospitable world is one of man’s inherent needs. Even in the desert, Man’s sole means of survival is determined by whether he…”
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