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Abstract The commercialization of atomic technologies requires replacing laboratory-scale laser setups with compact and manufacturable optical platforms. Complex arrangements of free-space beams can be generated on chip through a combination of integrated photonics and metasurface optics. In this work, we combine these two technologies using flip-chip bonding and demonstrate an integrated optical architecture for realizing a compact strontium atomic clock. Our planar design includes twelve beams in two co-aligned magneto-optical traps. These beams are directed above the chip to intersect at a central location with diameters as large as 1 cm. Our design also includes two co-propagating beams at lattice and clock wavelengths. These beams emit collinearly and vertically to probe the center of the magneto-optical trap, where they will have diameters of ≈100 µm. With these devices we demonstrate that our integrated photonic platform is scalable to an arbitrary number of beams, each with different wavelengths, geometries, and polarizations.
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Routes to Nanophotonic Devices for Micron-Scale Beam Steering in 3D
Self-collimating spatially-variant lattices (SVLs) are integrated photonic devices that can be designed to steer optical beams in 3D within micron-scale volumes. SVLs can be fabricated by multi-photon lithography, and new routes to these and related devices are being explored based on modified Bessel beams.
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- Award ID(s):
- 1711356
- PAR ID:
- 10155805
- Date Published:
- Journal Name:
- 2019 Research and Applications of Photonics in Defense (RAPID)
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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