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dc.contributor.advisorMarin Soljačić.en_US
dc.contributor.authorKim, Samuel, S.M. Massachusetts Institute of Technology.en_US
dc.contributor.otherMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science.en_US
dc.date.accessioned2019-10-11T22:11:19Z
dc.date.available2019-10-11T22:11:19Z
dc.date.copyright2019en_US
dc.date.issued2019en_US
dc.identifier.urihttps://hdl.handle.net/1721.1/122547
dc.descriptionThesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019en_US
dc.descriptionCataloged from PDF version of thesis.en_US
dc.descriptionIncludes bibliographical references (pages 55-60).en_US
dc.description.abstractOptical beam steering has numerous applications including light detection and ranging (LIDAR) for three-dimensional (3D) sensing, free space communications, additive manufacturing, and remote sensing. In particular, there is an increasing demand for LIDAR in a variety of applications including autonomous vehicles, unammaned aerial vehicles (UAVs), robotics, and remote sensing. Ideal solutions are small in size, weight, and power consumption (SWaP) while maintaining long range, high resolution, and large field of view (FOV). Here I present a design for a planar Luneburg lens for use in a silicon photonics optical beam steering device fabricated using CMOS-compatible techniques. The gradient index of the lens is achieved using a photonic crystal consisting of amorphous silicon patterned with a triangular lattice of holes layered on top of silicon nitride. Multiple waveguides can be placed along the focal circle of the lens and the lens is designed to collimate the beam from the waveguides. Through full-wave simulations, the lens is shown to be diffraction-limited with a beamwidth of 0.55° for a lens with radius R = 100 um. The lens is also studied for robustness to fabrication variations. The lens would allow a solid-state on-chip optical beam steering device with a FOV of 1600 with no off-axis aberrations.en_US
dc.description.statementofresponsibilityby Samuel Kim.en_US
dc.format.extent60 pagesen_US
dc.language.isoengen_US
dc.publisherMassachusetts Institute of Technologyen_US
dc.rightsMIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission.en_US
dc.rights.urihttp://dspace.mit.edu/handle/1721.1/7582en_US
dc.subjectElectrical Engineering and Computer Science.en_US
dc.titleDesign of a photonic crystal planar Luneburg lens for optical beam steeringen_US
dc.typeThesisen_US
dc.description.degreeS.M.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Scienceen_US
dc.identifier.oclc1122564263en_US
dc.description.collectionS.M. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Scienceen_US
dspace.imported2019-10-11T22:11:19Zen_US
mit.thesis.degreeMasteren_US
mit.thesis.departmentEECSen_US


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