Zobrazeno 1 - 10
of 33
pro vyhledávání: '"G. M. Loiacono"'
Publikováno v:
Journal of Physics D: Applied Physics. 29:1681-1684
Domain inversion in an (001) section of flux-grown has been produced by applying an electric field to a sample via liquid electrodes. An x-ray anomalous scattering experiment has been used for characterization of the domain reversal. The variation of
Publikováno v:
Journal of Crystal Growth. 144:223-228
The synthesis, growth and properties of crystals in the system K1-xNaxTiOPO4, where 0 < x < 1, was investigated. In the composition range 18 to 47 mo1%, the feasibility of non-critical phase matching of 1064 nm light was demonstrated along the [100].
Publikováno v:
Acta Crystallographica Section B Structural Science. 50:655-662
Refinements of the crystal structures of potassium titanyl arsenate, KTiOAsO 4 , grown from a tungstate flux (1) and an arsenate flux (2), are reported. Crystal data at room temperature are: (1) KTiOAsO 4 , orthorhombic, Pna2 1 , a=13.138 (2), b=6.58
Publikováno v:
Journal of Applied Physics. 76:773-776
A series of Ti3+ centers have been formed in hydrothermally grown and flux‐grown potassium titanyl phosphate (KTiOPO4 or KTP). These 3d1 defects (S=1/2) were created with 60 kV x rays at 77 K, and electron paramagnetic resonance and electron‐nucl
Publikováno v:
Journal of Crystal Growth. 131:323-330
The synthesis and crystal growth conditions for orthorhombic CsTiOAsO 4 have been established. Crystals measuring up to 15×22×32 mm were grown at temperature lowering rates of 1 to 5°C/day. The ferroelectric nature of the phase transition at 671°
Publikováno v:
Journal of Applied Physics. 72:2705-2712
The grey track effect in KTiOPO4 and KTiOAsO4 is shown to be related to the presence of Ti+3. The susceptibility to grey track formation was maximum in crystals grown from tungsten‐based solvents. The data shows that no clear correlations exist bet
Autor:
G. M. Loiacono, W. P. Risk
Publikováno v:
Applied Physics Letters. 69:311-313
We report the demonstration of a guided‐wave nonlinear process in the material rubidium titanyl arsenate (RTA). Quasi‐phase‐matched frequency doubling of 874.5 nm light was achieved in a Cs:RTA waveguide, with a normalized conversion efficiency
Publikováno v:
Applied Physics Letters. 61:895-897
Crystals of KTiOAsO4 were grown by the high temperature solution method and their optical and ionic conductivity properties evaluated. The band edge and IR cutoff were 370 and 4850 nm, respectively. A domain structure prevented efficient frequency co
Autor:
W. P. Risk, G. M. Loiacono
Publikováno v:
Nonlinear Guided Waves and Their Applications.
There is currently great interest in the use of quasi-phasematched waveguide devices for a variety of frequency conversion applications. A number of ferroelectric materials have been studied that permit periodic poling and waveguide fabrication, such