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Hybrid quantum nanophotonic devices for coupling to rare-earth ions

Miyazono, Evan and Hartz, Alex and Zhong, Tian and Faraon, Andrei (2015) Hybrid quantum nanophotonic devices for coupling to rare-earth ions. In: Advances in Photonics of Quantum Computing, Memory, and Communication VIII. Proceedings of SPIE. No.9377. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, Art. No. 937708.

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With an assortment of narrow line-width transitions spanning the visible and IR spectrum and long spin coherence times, rare-earth doped crystals are the leading material system for solid-state quantum memories. Integrating these materials in an on-chip optical platform would create opportunities for highly integrated light-matter interfaces for quantum communication and quantum computing. Nano-photonic resonators with high quality factors and small mode volumes are required for efficient on-chip coupling to the small dipole moment of rare-earth ion transitions. However, direct fabrication of optical cavities in these crystals with current nanofabrication techniques is difficult and unparallelized, as either exotic etch chemistries or physical milling processes are required. We fabricated hybrid devices by mechanically transferring a nanoscale membrane of gallium arsenide (GaAs) onto a neodymium-doped yttrium silicon oxide (Y_2SiO_5) crystal and then using electron beam lithography and standard III-V dry etching to pattern nanobeam photonic crystal cavities and ring resonator cavities, a technique that is easily adapted to other frequency ranges for arbitrary dopants in any rare earth host system. Single crystalline GaAs was chosen for its low loss and high refractive index at the transition wavelength. We demonstrated the potential to evanescently couple between the cavity field and the 883 nm ^4I_(9/2)- ^4F_(3/2) transition of nearby neodymium impurities in the host crystal by examining transmission spectra through a waveguide coupled to the resonator with a custom-built confocal microscope. The prospects and requirements for using this system for scalable quantum networks are discussed.

Item Type:Book Section
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URLURL TypeDescription DOIArticle
Miyazono, Evan0000-0003-2176-0335
Zhong, Tian0000-0003-3884-7453
Faraon, Andrei0000-0002-8141-391X
Additional Information:© 2015 SPIE.
Subject Keywords:Quantum optics; Optical devices; Quantum electrodynamics; Rare-earth-doped materials; Coherent optical effects; Optical memories
Series Name:Proceedings of SPIE
Issue or Number:9377
Record Number:CaltechAUTHORS:20150522-105723559
Persistent URL:
Official Citation:Evan Miyazono ; Alex Hartz ; Tian Zhong ; Andrei Faraon; Hybrid quantum nanophotonic devices for coupling to rare-earth ions . Proc. SPIE 9377, Advances in Photonics of Quantum Computing, Memory, and Communication VIII, 937708 (March 4, 2015); doi:10.1117/12.2077540
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57777
Deposited By: Tony Diaz
Deposited On:22 May 2015 20:11
Last Modified:03 Oct 2019 08:28

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