Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/12086
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dc.contributor.authorPoungprasert M.
dc.contributor.authorPlaipichit S.
dc.contributor.authorBantitadawit P.
dc.contributor.authorBuranasiri P.
dc.date.accessioned2021-04-05T03:01:52Z-
dc.date.available2021-04-05T03:01:52Z-
dc.date.issued2020
dc.identifier.issn0277786X
dc.identifier.other2-s2.0-85082690565
dc.identifier.urihttps://ir.swu.ac.th/jspui/handle/123456789/12086-
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85082690565&doi=10.1117%2f12.2553988&partnerID=40&md5=300ef27bcd78b030a6bb8b83f4c339a3
dc.description.abstractThe purpose of the study was to investigate of photorefractive Bragg gratings within iron-doped lithium niobate crystals with the size of seven cubic millimeters. Polarized helium-neon laser beams with a wavelength of 633 nm have been separated into two beams and then incident on the crystal with different angles. Both beams were used for writing the grating in the crystal with the incident angle (2θ). and the angle between both beams has been founded the highest efficiency of diffraction beams. Then the transport of intensity method was used to explore the grating characteristics by using the opposite polarization of the writing helium-neon laser beam. Images in focus and defocus before and after the focal plane was recorded on a Canon digital camera. Then, these images were used to process by computer programing based on the principle of transport of intensity equation. By using this technique, the grating characteristics in lithium niobate crystals would be investigated. © 2020 SPIE.
dc.subjectDiffraction gratings
dc.subjectHelium
dc.subjectHelium neon lasers
dc.subjectLaser beams
dc.subjectLithium
dc.subjectNiobium compounds
dc.subjectPhotonics
dc.subjectPhotoreactivity
dc.subjectDiffraction beams
dc.subjectGrating
dc.subjectIncident angles
dc.subjectLithium niobate crystal
dc.subjectPhoto-refractive
dc.subjectPhotorefractive effects
dc.subjectTransport of intensity
dc.subjectTransport of intensity equations
dc.subjectPhotorefractive crystals
dc.titleProperty investigation of photorefractive crystal using transport of intensity technique
dc.typeConference Paper
dc.rights.holderScopus
dc.identifier.bibliograpycitationProceedings of SPIE - The International Society for Optical Engineering. Vol 11331, (2020)
dc.identifier.doi10.1117/12.2553988
Appears in Collections:Scopus 1983-2021

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