TITLE

Imaging shocked sapphire at 200–460 kbar: The effect of crystal orientation on optical emission

AUTHOR(S)
Hare, D. E.; Webb, D. J.; Holmes, N. C.
PUB. DATE
April 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p637
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have taken 12-50 ns exposure duration images of 200-460 kbar shock loaded, single crystal sapphire (α-Al[SUB2]O[SUB3]) windows of the c-cut (0001), r-cut (1,-1,0,2) and a-cut (1,1,-2,0) orientations. We find that the spectra of the emission are broad and relatively featureless, extending at least from 760 to 280 nm. Images of this emission at the lower end of the stress range (200-220 kbar) show that it is spatially very heterogeneous, coming from a few seemingly-randomly distributed locations within the crystal. This emission heterogeneity becomes more fine-grained with increasing shock stress. Finally, the r-cut orientation produces significantly less emission than the other two orientations at the same stress.
ACCESSION #
5985440

 

Related Articles

  • Optics and Spectroscopy of a Pb3Ga2Ge4O14:Nd3+ Crystal, a New Representative of the Langasite Family. Butashin, A.V.; Li, L.E.; Konstantinova, A.F.; Gudim, I.A. // Crystallography Reports;May2004, Vol. 49 Issue 3, p459 

    Absorption and luminescent properties of a Pb3Ga2Ge4O14:Nd3+ crystal have been studied. The refractive indices are measured in the range from 0.405 to 1.064 μm, and the molecular refraction is calculated. © 2004 MAIK “Nauka / Interperiodica”.

  • Strong Tb[sup 3+] emission of TbAlO[sub 3] at room temperature. Sekita, Masami; Miyazawa, Yasuto // Applied Physics Letters;11/7/1994, Vol. 65 Issue 19, p2380 

    Measures the optical spectra for transparent and colorless TbAlO[sub 3] single crystals grown by the Czochralski method in a reducing atmosphere. Display of strong Tb[sup 3+] emission spectrum; Assignment of all fine structures in absorption and emission spectra; Observation of concentration...

  • Changes in Ellipsometric Parameters of Si(111) Single Crystals Upon Removal of an Adsorbate from Their Surfaces. Asalkhanov, Yu. I.; Saneev, E.L. // Optics & Spectroscopy;Sep2003, Vol. 95 Issue 3, p396 

    The regularities of changes in the ellipsometric parameters (EPs) of Si(111) single crystals upon the removal of adsorbed gases and a natural oxide layer from their surfaces are investigated. The surfaces were cleaned by sequentially increasing the annealing temperature of single crystals in a...

  • Spectroscopic properties of nonlinear NdSc...(BO...)... Gruber, John B.; Reynolds, Thomas A. // Journal of Applied Physics;5/15/2000, Vol. 87 Issue 10, p7159 

    Presents information on a study which examined the spectroscopic properties of nonlinear NdSc...(BO...)... optical crystal. Experimental details; Observed absorption and excitation spectra of the optical crystal; Analysis of the spectra; Conclusions.

  • Interrelation between Optical, Refractometric, and Lattice Parameters of Cu[sub 6]P(S[sub 1 � ][sub x]Se[sub x])[sub 5]I Crystals. Studenyak, I. P.; Suslikov, L. M.; Kovacs, Gy. Sh.; Kranjcec, M.; Tovt, V. V. // Optics & Spectroscopy;Apr2001, Vol. 90 Issue 4, p538 

    The influence of the compositional disordering on the energy of the fundamental absorption edge and the refractive index dispersion of the crystalline solid solutions Cu[sub 6]P(S[sub 1-x]Se[sub x])[sub 5]I is studied. It is shown that the concentration dependences of the optical pseudogap...

  • Interaction of Light Waves on a Reflecting Holographic Grating in Cubic Photorefractive Crystals. Mart�yanov, A. G.; Shandarov, S. M.; Litvinov, R. V. // Physics of the Solid State;Jun2002, Vol. 44 Issue 6, p1050 

    The interaction of two antiparallel light waves on a reflecting grating is analyzed theoretically in arbitrarily oriented optically active cubic crystals of point group 23. The effect of nonunidirectional energy transfer on the interaction efficiency is investigated in the undepleted-pump-power...

  • Photoluminescence excitation spectra of CuInS[sub 2] crystals. Wakita, Kazuki; Fujita, Futoshi; Yamamoto, Nobuyuki // Journal of Applied Physics;8/1/2001, Vol. 90 Issue 3 

    The photoluminescence excitation (PLE) spectra of CuInS[sub 2] crystals grown by the traveling heater method (THM) and the iodine vapor transport method (IT) have been examined. THM crystals show significant structure with many peaks and dips in the PLE spectra, whereas IT crystals exhibits two...

  • Structural and Spectral Properties of Deterministic Aperiodic Optical Structures. Dal Negro, Luca; Ren Wang; Pinheiro, Felipe A. // Crystals (2073-4352);Dec2016, Vol. 6 Issue 12, p1 

    In this comprehensive paper we have addressed structure-property relationships in a number of representative systems with periodic, random, quasi-periodic and deterministic aperiodic geometry using the interdisciplinary methods of spatial point pattern analysis and spectral graph theory as well...

  • Aircraft Observations of Ice Crystal Evolution in an Altostratus Cloud. Field, Paul R. // Journal of the Atmospheric Sciences;6/15/99, Vol. 56 Issue 12, p1925 

    Presents information on a study on the evolution of ice particle spectra through observations from a Lagrangian spiral descent within altostratus cloud associated with a cold front. Experimental details; Results and discussion; Conclusions.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics