Zobrazeno 1 - 10
of 22
pro vyhledávání: '"S. Mendricks"'
Publikováno v:
Ferroelectrics. 256:81-89
The influence of oxidizing treatments on the photorefractive properties of nominally pure ferroelectric lead germanate crystals is investigated. In two-wave mixing experiments the dark conductivity, the intensity dependence of the photoconductivity,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::602cf2c2834a28fc5b406dcdb3003ae4
https://doi.org/10.1080/00150190108015975
https://doi.org/10.1080/00150190108015975
Publikováno v:
Journal of Applied Physics. 86:1186-1190
Multiple phase gratings are written in pure, Yb- and P-doped Pb5Ge3O11 crystals: a fast grating and a slow grating with substantially different response times compensate each other. Doping and thermal treatments have strong influences on the behavior
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::565cf65ca9603073ec519e1e469aad2a
https://doi.org/10.1063/1.370868
https://doi.org/10.1063/1.370868
Publikováno v:
Applied Physics B: Lasers and Optics. 68:887-891
During holographic recording in lead germanate (Pb5Ge3O11) crystals two types of refractive-index gratings are observed. One has a very fast response whereas the second builds up comparably slowly. Measurements of diffraction efficiency and two-beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d661c57c9ee73839eb97f64a19a61f0b
https://doi.org/10.1007/s003400050719
https://doi.org/10.1007/s003400050719
Publikováno v:
Journal of Applied Physics. 83:3473-3479
The photorefractive effect is studied in ferroelectric lead germanate crystals Pb5Ge3O11, including undoped, Fe- and Rh-doped crystals, as well as (Pb1−xBax)5Ge3O11 solid solutions. Two kinds of processes are involved in photorefractive interaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29631e8735cb26f6d1060934165362ba
https://doi.org/10.1063/1.366628
https://doi.org/10.1063/1.366628
Publikováno v:
Optics Communications. 146:220-224
We demonstrate a new method of light amplification in photorefractive BaTiO 3 . An ordinary signal beam is amplified by an extraordinary and an ordinary pump beam. A forward phase-conjugate beam is simultaneously generated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e313f5978f0f53c1fdd91684096be06
https://doi.org/10.1016/s0030-4018(97)00540-3
https://doi.org/10.1016/s0030-4018(97)00540-3
Publikováno v:
Physical Review B. 54:15284-15290
Using electron paramagnetic resonance two types of ${\mathrm{Ti}}^{3+}$-related centers are identified in BaTi${\mathrm{O}}_{3}$, which are attributed to ${\mathrm{Ti}}^{3+}$-${V}_{\mathrm{O}}$ and to ${\mathrm{Ti}}^{3+}$-${V}_{\mathrm{O}}$ associate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af5b899baa58681d5e71a67da682d09a
https://doi.org/10.1103/physrevb.54.15284
https://doi.org/10.1103/physrevb.54.15284
Publikováno v:
Applied Physics Letters. 70:2395-2397
Iron doped barium titanate was grown and reduced at various temperatures. Using optical absorption and electron paramagnetic resonance (photo-EPR) simultaneously, a wide absorption band at ∼2.1 eV due to Fe2+ is established. The light-induced charg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16f7490248ff8e98b7c4ea0c5e9bee35
https://doi.org/10.1063/1.118883
https://doi.org/10.1063/1.118883
Publikováno v:
Advances in Photorefractive Materials, Effects and Devices.
In photorefractive Pb5Ge3O11 and (Pb0.8Ba0.02)5Ge3O11 crystals, Pb2+ host lattice ions can be recharged by visible light to Pb3+. The magnetic and structural properties of this hole trapping center, metastable at low temperatures, is characterized by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a587663110a1c20d57d7443690acca79
https://doi.org/10.1364/apmed.1999.mc7
https://doi.org/10.1364/apmed.1999.mc7
Publikováno v:
physica status solidi (a). 166:R3-R4
Lead germanate single crystals (Pb5Ge3O11, PGO) exhibit considerably large electrooptic coefficients of r33 15:3 pmVy1 and show interesting photorefractive properties [1]. For bulk material and at moderate cw input power, time constants for the bu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12286da3c02c48be5e9d252c6ea3a0c3
https://doi.org/10.1002/(sici)1521-396x(199803)166:13.0.co
https://doi.org/10.1002/(sici)1521-396x(199803)166:1
Publikováno v:
Journal of the Optical Society of America B. 16:389
During holographic recording in pure (Pb5Ge3O11) and doped [(Pb1−xBax)5Ge3O11] lead germanate crystals, the diffraction efficiency is transiently enhanced at the initial stage. The enhancement is studied as a function of writing-beam intensity and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46ad780db8a9e10951bf05234349ac3c
https://doi.org/10.1364/josab.16.000389
https://doi.org/10.1364/josab.16.000389