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Proceedings Paper

Quantum nanophotonic devices based on rare-earth-doped crystals (Conference Presentation)
Author(s): Andrei Faraon; Tian Zhong; Jonathan M. Kindem; Evan Miyazono; Ioana Craiciu; Jake H. Rochman; John Bartholomew

Paper Abstract

Quantum light-matter interfaces that reversibly map the quantum state of photons onto the quantum states of atoms, are essential components in the quantum engineering toolbox with applications in quantum communication, computing, and quantum-enabled sensing. In this talk I present our progress towards developing on-chip quantum light-matter interfaces based on nanophotonic resonators fabricated in rare-earth-doped crystals known to exhibit the longest optical and spin coherence times in the solid state. We recently demonstrated coherent control of neodymium (Nd3+) ions coupled to yttrium orthosilicate Y2SiO5 (YSO) photonic crystal nano-beam resonator. The coupling of the Nd3+ 883 nm 4I9/2-4F3/2 transition to the nano-resonator results in a 40 fold enhancement of the transition rate (Purcell effect), and increased optical absorption (~80%) - adequate for realizing efficient optical quantum memories via cavity impedance matching. Optical coherence times T2 up to 100 μs with low spectral diffusion were measured for ions embedded in photonic crystals, which are comparable to those observed in unprocessed bulk samples. This indicates that the remarkable coherence properties of REIs are preserved during nanofabrication process. Multi-temporal mode photon storage using stimulated photon echo and atomic frequency comb (AFC) protocols were implemented in these nano-resonators. Our current technology can be readily transferred to Erbium (Er) doped YSO devices, therefore opening the possibility of efficient on-chip optical quantum memory at 1.5 μm telecom wavelength. Integration with superconducting qubits can lead to devices for reversible quantum conversion of optical photons to microwave photons.

Paper Details

Date Published: 2 June 2017
PDF: 1 pages
Proc. SPIE 10118, Advances in Photonics of Quantum Computing, Memory, and Communication X, 101180L (2 June 2017); doi: 10.1117/12.2249637
Show Author Affiliations
Andrei Faraon, California Institute of Technology (United States)
Tian Zhong, California Institute of Technology (United States)
Jonathan M. Kindem, California Institute of Technology (United States)
Evan Miyazono, California Institute of Technology (United States)
Ioana Craiciu, California Institute of Technology (United States)
Jake H. Rochman, California Institute of Technology (United States)
John Bartholomew, California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 10118:
Advances in Photonics of Quantum Computing, Memory, and Communication X
Zameer Ul Hasan; Philip R. Hemmer; Hwang Lee; Alan L. Migdall, Editor(s)

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