Zobrazeno 1 - 9
of 9
pro vyhledávání: '"M. R. Kokta"'
Publikováno v:
Scopus-Elsevier
Nickel-doped Al2O3 (sapphire) crystals have been studied using optical absorption and transmission electron microscopy. After reduction at elevated temperatures in a hydrogen atmosphere, these crystals exhibit a dark colouration. Our results indicate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7371c4395f9a9381b2dae9557dcd6f5
https://doi.org/10.1080/01418619708209980
https://doi.org/10.1080/01418619708209980
Publikováno v:
Physical Review B. 47:2460-2464
Thermochemical reduction at high temperatures has been performed on chromium-doped lanthanum magnesium aluminate crystals. Analytical transmission-electron-microscopy and optical-absorption techniques were used to characterize the crystals. Copper im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3135c34dfbc266c3407e05f178f5471
https://doi.org/10.1103/physrevb.47.2460
https://doi.org/10.1103/physrevb.47.2460
Publikováno v:
Applied optics. 28(3)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a7ed24a8f357f48a4a53462d67d55705
https://pubmed.ncbi.nlm.nih.gov/20548489
https://pubmed.ncbi.nlm.nih.gov/20548489
Publikováno v:
Journal of Applied Physics. 68:1200-1204
Room‐temperature optical absorption over a large dynamic range is reported for single‐ crystal undoped yttrium aluminum garnet (Y3Al5O12 or YAG). Absorption results are presented for the energy ranges 1.8 to 3.0 and 4.5 to 6.5 eV. For this work,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d49e307d9a1a4096c02f444ed7796dd
https://doi.org/10.1063/1.346717
https://doi.org/10.1063/1.346717
Publikováno v:
Journal of Applied Physics. 67:7542-7546
Optical absorption over a large dynamic range obtained by two different experimental techniques is reported for an undoped α‐Al2 O3 single crystal. Absorption data are presented in two energy ranges: 0.94–3.5 eV and 4.5–8.6 eV. Vacuum ultravio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34b7b1d39916f0af7a7a96941f2bc4ce
https://doi.org/10.1063/1.345817
https://doi.org/10.1063/1.345817
Publikováno v:
Journal of Applied Physics. 78:3543-3545
cw laser operation has been achieved from a diode‐pumped Nd:LuAlO3 crystal for the first time. The tuning characteristics centered about 1083 nm are presented and the laser’s use for 3He and 4He optical pumping are established. With 1.5 W of outp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06e0e7f072b92c973547bc8f765f8c57
https://doi.org/10.1063/1.359929
https://doi.org/10.1063/1.359929
Publikováno v:
Applied Physics B Lasers and Optics. 58:409-411
A conventional pulsed Nd:YALO oscillator was passively Q-switched with a Cr4+:YAG crystal. During each of the flashes, with a repetition rate of 100 Hz, a burst of 27 Q-switch pulses with a half width (FWHM) of 140 ns was generated. The minimal pulse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6c1ed086aa6b7abe1673e5ece8fcb43
https://doi.org/10.1007/bf01081882
https://doi.org/10.1007/bf01081882
Autor:
H. Kimura, Munirpallam A. Subramanian, M. R. Kokta, George R. Rossman, Toomas H. Allik, Robert D. Shannon, M. H. Randles
The dielectric constants (kappa[script ']) and dielectric loss values of 10 rare-earth gallium garnets and 1 rare-earth aluminum garnet were measured at 1 MHz using a two-terminal method with empirically determined edge corrections. The results are:
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fe94cd3a32354a03e51b61e2870074b
https://resolver.caltech.edu/CaltechAUTHORS:SHAjap90
https://resolver.caltech.edu/CaltechAUTHORS:SHAjap90
Publikováno v:
AIP Conference Proceedings.
Laser‐pumped, single‐pass transmission measurements were peformed on a La3Lu2Ga3O12 crystal containing 3.3 at.% Nd3+ to determine the usefulness of this material as a laser. No optical gain was observed. To ascertain why, time‐resolved, site‐
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ff0888590a5f70b089f1788093f153b
https://doi.org/10.1063/1.35856
https://doi.org/10.1063/1.35856