METHOD FOR MANUFACTURING OF PATTERNED SRB4BO7 AND PBB407 CRYSTALLS

An SrB4O7 or PbB4O7 crystal is configured with a plurality of domains with respective periodically alternating polarity of the crystal axis so that the disclosed crystal is capable of quasi-phasematching (QPM). The disclosed crystal is manufactured by a method including patterning a surface of a cry...

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Hauptverfasser: ZAYTSEV, Alexander, PERLOV, Dan, RADIONOV, Nikita, SADOVSKIY, Andrey, EVTIKHIEV, Nikolay, CHEREPAKHIN, Aleksandr, ZAMKOV, Anatolli
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:An SrB4O7 or PbB4O7 crystal is configured with a plurality of domains with respective periodically alternating polarity of the crystal axis so that the disclosed crystal is capable of quasi-phasematching (QPM). The disclosed crystal is manufactured by a method including patterning a surface of a crystal block of SrB4O7 or PbB4O7, thereby providing patterned uniformly dimensioned regions with a uniform polarity sign on the surface. The method further includes generating a disturbance on the patterned surface, thereby inverting a sign of crystal polarity of every other region to form the SrB4O7 or SrB4O7 crystal with a plurality of domains with alternating polarity enabling a QPM mechanism.