Frequency mixing of photorefractive and ferroelectric gratings in lithium niobate crystals

Frequency mixing of photorefractive and ferroelectric gratings in lithium niobate crystals

Holographically recorded photorefractive gratings in periodically poled lithium niobate crystals (PPLNs) are investigated. The principal spatial frequency K of the grating is strongly suppressed. Sideband gratings with grating vectors K +/- G appear. From the measurements the domain grating vector G...

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Veröffentlicht in:Optics letters 2006-03, Vol.31 (5), p.583-585
Hauptverfasser: HARTWIG, U, KÖSTERS, M, WOIKE, Th, BUSE, K, SHUMELYUK, A, ODOULOV, S
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Holographic optical elements
holographic gratings
Holographic recording materials
optical storage media
Holography
Optical materials
Optics
Physics
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Zusammenfassung:Holographically recorded photorefractive gratings in periodically poled lithium niobate crystals (PPLNs) are investigated. The principal spatial frequency K of the grating is strongly suppressed. Sideband gratings with grating vectors K +/- G appear. From the measurements the domain grating vector G and the duty cycle of the domain structure can be obtained. These findings allow for fast nondestructive quality inspection of PPLN and are of importance for any optical application combining holography and PPLN.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.31.000583