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Proceedings Paper

Nanoscale Pr3+: Y2O3 for optical quantum technologies (Conference Presentation)
Author(s): Diana Serrano; Chetan Deshmukh; Shuping Liu; Alexandre Tallaire; Alban Ferrier; Hugues de Riedamtten; Philippe Goldner

Paper Abstract

Nanoscale systems possessing long-lived spins and the ability to coherently couple to light are highly demanded for quantum devices implementations. Several approaches, like NV centers in diamond, semiconductor quantum dots are intensively investigated in the field, where an outstanding challenge is to preserve properties, and especially optical and spin coherence lifetimes, at the nanoscale. In this context, chemically synthesized Eu3+ doped Y2O3 nanoparticles have demonstrated great potential for quantum technologies based on their narrow optical homogeneous linewidth, down to the 10 kHz level, and millisecond-long spin coherence time. Here, we investigate an alternative nanoscale material: Pr3+: Y2O3. We first determine the Pr3+ hyperfine structure in Y2O3 by spectral hole burning and then measure photon and spin echoes from nanoparticles down to 150 nm. Spin T2 up to 880 μs was obtained for the ±3/2↔±5/2 hyperfine transition at 10.42 MHz, a value which exceeds that of bulk Pr3+doped crystals so far reported. These promising results confirm nanoscale Pr3+:Y2O3 as a very appealing candidate to integrate quantum devices.

Paper Details

Date Published: 30 March 2020
Proc. SPIE 11347, Quantum Technologies 2020, 113470Z (30 March 2020); doi: 10.1117/12.2555835
Show Author Affiliations
Diana Serrano, École Nationale Supérieure de Chimie de Paris (France)
Chetan Deshmukh, ICFO - Institut de Ciències Fotòniques (Spain)
Shuping Liu, École Nationale Supérieure de Chimie de Paris (France)
Alexandre Tallaire, Ecole Nationale Supérieure de Chimie de Paris (France)
Alban Ferrier, École Nationale Supérieure de Chimie de Paris (France)
Hugues de Riedamtten, ICFO - Institut de Ciències Fotòniques (Spain)
Philippe Goldner, École Nationale Supérieure de Chimie de Paris (France)

Published in SPIE Proceedings Vol. 11347:
Quantum Technologies 2020
Eleni Diamanti; Sara Ducci; Nicolas Treps; Shannon Whitlock, Editor(s)

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