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Updated: Jun 21, 2026

Gradient Echo Quantum Memory in Warm Atomic Vapor
Published on: November 11, 2013
Coherent 455 nm beam production in a cesium vapor
J T Schultz1, S Abend, D Döring
1Australian Research Council Centre of Excellence for Quantum-Atom Optics, Department of Quantum Science, Australian National University, Canberra, Australian Capital Territory 0200, Australia. justin.t.schultz@gmail.com
Abstract:
We observe coherent, cw, 455 nm blue-beam production via frequency upconversion in cesium vapor. Two IR lasers induce strong double excitation in a heated cesium vapor cell, allowing the atoms to undergo a double cascade and produce a coherent, collimated, blue beam copropagating with the two IR pump lasers.
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