Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ronald W. Stites"'
Autor:
Eric J. Turner, Kenneth L. Schepler, Jonathan W. Evans, Thomas R. Harris, Ronald W. Stites, Gary Cook, Martin M. Kimani, J. Matthew Mann
Publikováno v:
Optical Engineering. 60
Fe:ZnSe and other transition metals have broad upper and lower energy manifolds that give rise to broad absorption and fluorescence bands in the mid-infrared spectral region. Energy transfer between Fe2 + ions via re-absorption of fluorescence (due t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::157c32c30b86c4ea1e306708a09ea7d4
https://doi.org/10.1117/1.oe.60.5.056103
https://doi.org/10.1117/1.oe.60.5.056103
Autor:
Gary Cook, Kenneth L. Schepler, Jonathan W. Evans, Sean A. McDaniel, Ronald W. Stites, Patrick A. Berry, Thomas R. Harris
Publikováno v:
Solid State Lasers XXIX: Technology and Devices.
Much progress has been made in power scaling mid-infrared lasers based on transition metal ions such as Cr2+, Co2+, and Fe2+ in zinc and cadmium chalcogenides. Still, the exploration of the physics of the devices is incomplete. In this work, we analy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80db9c35f37d510681dd2e6baad4ba0f
https://doi.org/10.1117/12.2553388
https://doi.org/10.1117/12.2553388
Autor:
Martin M. Kimani, Ronald W. Stites, Michael Snure, Rita D. Peterson, Vladimir Tassev, Shivashankar Vangala
Publikováno v:
Optical Materials. 60:62-66
Quasi-phase-matched (QPM) GaP layers up to 300 μm thick have been produced by low-pressure hydride vapor phase epitaxy (LP-HVPE) overgrowth on orientation-patterned GaAs (OPGaAs) templates fabricated using a wafer-fusion bonding technique. The growt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c47ca28742d99cdc03a21b9ab4b0ba0
https://doi.org/10.1016/j.optmat.2016.07.003
https://doi.org/10.1016/j.optmat.2016.07.003
Autor:
Gary Cook, Kenneth L. Schepler, Jonathan W. Evans, Thomas R. Harris, Ronald W. Stites, Martin M. Kimani, Eric J. Turner, J. Matthew Mann
Publikováno v:
Solid State Lasers XXVII: Technology and Devices.
Fe:ZnSe and other transition metals have broad upper and lower energy manifolds which give rise to broad absorption and fluorescence bands in the mid-IR spectral region. Energy transfer between Fe2p ions via re-absorption of fluorescence (due to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c39679de1783d16c30f0fb5559597384
https://doi.org/10.1117/12.2290822
https://doi.org/10.1117/12.2290822
Autor:
Jacob O. Barnes, Ronald W. Stites, Shekhar Guha, Gary Cook, Douglas M. Krein, John Goldsmith, Sean A. McDaniel
Publikováno v:
Laser Technology for Defense and Security XIII.
This paper describes using a hot isostatic pressing (HIP) to improve II-VI crystal characteristics and diffuse metal ions into laser host crystals. Thin layers of metal are sputtered onto the surface of zinc selenide and zinc sulfide crystals prior t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77daa264852f94c316b5240545081083
https://doi.org/10.1117/12.2266541
https://doi.org/10.1117/12.2266541
Publikováno v:
Applied optics. 56(12)
We report fabrication and operation of multi-watt level waveguide lasers utilizing holmium-doped yttrium aluminum garnet (Ho:YAG). The waveguides were fabricated using ultrafast laser inscription, which relies on a chirped pulse ytterbium fiber laser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6d98cc0678248974823e5e0da5afd4f
https://pubmed.ncbi.nlm.nih.gov/28430245
https://pubmed.ncbi.nlm.nih.gov/28430245
Publikováno v:
SPIE Proceedings.
We describe a variety of technological advances in the development of efficient, powerful, and continuously tunable Cr:ZnSe lasers operating in the 2.3-2.7 μm spectral region. This includes the development of compact "single chip" waveguide Cr:ZnSe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05c210f8fc35ec644dbbaa2aaef69945
https://doi.org/10.1117/12.2260670
https://doi.org/10.1117/12.2260670
Autor:
Ronald W. Stites, Thomas R. Harris
Publikováno v:
SPIE Proceedings.
In addition to the well-established 5I7 to 5I8 transition at 2.09 μm in holmium doped laser materials, there also exists a less energetic transition from the 5I6 level to 5I7 at 2.95 μm. As there has been a recent increase in interest and applicati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a85c51364fe7ee12fad5cff9fd45bfcf
https://doi.org/10.1117/12.2209625
https://doi.org/10.1117/12.2209625
Publikováno v:
Optical Materials Express. 7:4296
A sample of Fe:ZnSe fabricated by post-growth thermal diffusion was purchased commercially. The sample was cooled to 80 K using liquid nitrogen and used as the gain element in a Watt-class continuous-wave laser with an output wavelength centered at 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a462bc4553cc983d8bde276787fd9489
https://doi.org/10.1364/ome.7.004296
https://doi.org/10.1364/ome.7.004296
Publikováno v:
CLEO: 2014.
A 500 μm Cr:ZnSe thin disk gain element was pumped at five different pump diameters. Laser output versus pump power was measured. Slope efficiency, threshold, and maximum power versus pump spot size were then extracted.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f8d5e7dc4d6a57ee00d381fd90aefbb
https://doi.org/10.1364/cleo_at.2014.jtu4a.124
https://doi.org/10.1364/cleo_at.2014.jtu4a.124