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dc.contributor.authorCruz-Cabrera, A.en_US
dc.contributor.authorKemme, S.en_US
dc.contributor.authorWendt, J.en_US
dc.contributor.authorKielpinski, Daviden_US
dc.contributor.authorStreed, Eriken_US
dc.contributor.authorCarter, T.en_US
dc.contributor.authorSamora, S.en_US
dc.contributor.editorZameer U. Hasanen_US
dc.description.abstractWe developed techniques to design higher efficiency diffractive optical elements (DOEs) with large numerical apertures (NA) for quantum computing and quantum information processing. Large NA optics encompass large solid angles and thus have high collection efficiencies. Qubits in ion trap architectures are commonly addressed and read by lasers1. Large-scale ion-trap quantum computing2 will therefore require highly parallel optical interconnects. Qubit readout in these systems requires detecting fluorescence from the nearly isotropic radiation pattern of single ions, so efficient readout requires optical interconnects with high numerical aperture. Diffractive optical element fabrication is relatively mature and utilizes lithography to produce arrays compatible with large-scale ion-trap quantum computer architectures. The primary challenge of DOEs is the loss associated with diffraction efficiency. This is due to requirements for large deflection angles, which leads to extremely small feature sizes in the outer zone of the DOE. If the period of the diffractive is between lambda (the free space wavelength) and 10lambda, the element functions in the vector regime. DOEs in this regime, particularly between 1.5lambda and 4lambda, have significant coupling to unwanted diffractive orders, reducing the performance of the lens. Furthermore, the optimal depth of the zones with periods in the vector regime differs from the overall depth of the DOE. We will present results indicating the unique behaviors around the 1.5lambda and 4lambda periods and methods to improve the DOE performance.en_US
dc.publisherSPIE- the International Society for Optical Engineeringen_US
dc.publisher.placeBellingham, Washington, USAen_US
dc.relation.ispartofconferencenameAdvanced Optical and Quantum Memories and Computing IVen_US
dc.relation.ispartofconferencetitleProceedings of the International Society for Optical Engineering (SPIE)en_US
dc.relation.ispartoflocationSan Jose, CA, USAen_US
dc.titleHigh Efficiency DOEs at Large Diffraction Angles for Quantum Information and Computing Architecturesen_US
dc.typeConference outputen_US
dc.type.descriptionE2 - Conference Publications (Non HERDC Eligible)en_US
dc.type.codeE - Conference Publicationsen_US
gro.hasfulltextNo Full Text

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