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dc.contributor.authorWu, Shun-Deren_US
dc.contributor.authorGlytsis, Elias N.en_US
dc.contributor.authorGaylord, Thomas K.en_US
dc.date.accessioned2012-11-16T21:01:03Z
dc.date.available2012-11-16T21:01:03Z
dc.date.issued2005-07
dc.identifier.citationWu, SD and Glytsis, EN and Gaylord, Thomas K., "Optimization of finite-length input volume holographic grating couplers illuminated by finite-width incident beams," Applied Optics, 44, 21, 4435-4446 (July 20 2005)en_US
dc.identifier.issn0003-6935
dc.identifier.urihttp://hdl.handle.net/1853/45420
dc.description© 2005 Optical Society of America. The definitive version of this paper is available at: http://dx.doi.org/10.1364/AO.44.004435en_US
dc.descriptionDOI: 10.1364/AO.44.004435en_US
dc.description.abstractA finite volume holographic grating coupler (VHGC) normally illuminated with various incident-beam profiles (such as a Gaussian beam, a flat cosine-squared beam, and an exponential-decay beam) with finite beam widths for input coupling is rigorously analyzed by use of the finite-difference frequency-domain method. The effects of the incident-beam width, the incident-beam position, the incident-beam profile, and the incident-beam angle of incidence on the input coupling efficiency are investigated. The optimum conditions for input coupling are determined. Both a VHGC embedded in the waveguide film region and a VHGC placed in the waveguide cover region are investigated. For a given finite VHGC, the input coupling efficiencies are strongly dependent on incident-beam widths, incident-beam positions, and incident-beam angles of incidence, but are only weakly dependent on incident-beam profiles.en_US
dc.language.isoen_USen_US
dc.publisherGeorgia Institute of Technologyen_US
dc.subjectDiffraction gratingsen_US
dc.subjectDiffraction theoryen_US
dc.subjectVolume gratingsen_US
dc.subjectPhysical opticsen_US
dc.subjectElectromagnetic opticsen_US
dc.titleOptimization of finite-length input volume holographic grating couplers illuminated by finite-width incident beamsen_US
dc.typeArticleen_US
dc.contributor.corporatenameGeorgia Institute of Technology. Center for Organic Photonics and Electronicsen_US
dc.contributor.corporatenameGeorgia Institute of Technology. School of Electrical and Computer Engineeringen_US
dc.contributor.corporatenameEthniko Metsovio Polytechneio (Greece)en_US
dc.publisher.originalOptical Society of Americaen_US
dc.identifier.doi10.1364/AO.44.004435


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