The role of traps and the balance of manganese valence states in Mn:YAlO/sub 3/, a material for holographic recording and optical data storage

Author

Noginov, M.A. ; Loutts, G.B. ; Ross, K. ; Grandy, T. ; Noginova, N. ; Lucus, B. ; Mapp, T.

Author_Institution

Center for Mater. Res., Norfolk State Univ., VA, USA

fYear

1999

fDate

28-28 May 1999

Firstpage

334

Lastpage

335

Abstract

Summary form only given. Manganese doped YAlO/sub 3/ is a promising material for holographic recording and optical data storage. The recorded holographic grating has high diffraction efficiency, cannot be disturbed by red or infrared reading light, does not require any fixation, has very long life time at room temperature, and can be easily erased at >250/spl deg/C. The photoinduced change of the refraction index accompanies the change in the color, yellowish to bluish-grayish, which we explain by photoionization Mn/sup 4+//spl rarr/Mn/sup 5+/. We experimentally studied photocoloration and thermobleaching of Mn:YAlO/sub 3/ and developed the model describing the balance of valence states in Mn:YAlO/sub 3/.

Keywords

holographic gratings; manganese; optical materials; optical saturable absorption; optical storage; photoionisation; valence bands; ytterbium compounds; 250 C; Mn/sup 4+//spl rarr/Mn/sup 5+/; Mn:YAIO/sub 3/; YAlO/sub 3/:Mn; bluish-grayish; high diffraction efficiency; holographic recording material; manganese doped YAIO/sub 3/; manganese valence states; optical data storage material; photocoloration; photoinduced change; photoionization; reading light; recorded holographic grating; refraction index; room temperature; thermobleaching; very long life time; Diffraction gratings; Holographic optical components; Holography; Manganese; Memory; Optical diffraction; Optical materials; Optical recording; Optical refraction; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-595-1

Type

conf

DOI

10.1109/CLEO.1999.839048

Filename

839048