SUPER Scheme in Action: Experimental Demonstration of Red-detuned Excitation of a Quantum Dot

• URL: http://arxiv.org/abs/2203.00712v1
• Date: Tue, 1 Mar 2022 19:24:50 GMT
• Title: SUPER Scheme in Action: Experimental Demonstration of Red-detuned Excitation of a Quantum Dot
• Authors: Yusuf Karli (1), Florian Kappe (1), Vikas Remesh (1), Thomas K. Bracht (2), Julian Muenzberg (1), Saimon Covre da Silva (3), Tim Seidelmann (4), Vollrath Martin Axt (4), Armando Rastelli (3), Doris E. Reiter (2) and Gregor Weihs (1) ((1) Institute f\"ur Experimentalphysik, Universit\"at Innsbruck, Innsbruck, Austria, (2) Institut f\"ur Festk\"orpertheorie, Universit\"at M\"unster, M\"unster, Germany, (3) Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz, Linz, Austria, (4) Theoretische Physik III, Universit\"at Bayreuth, Bayreuth, Germany )
• Abstract summary: We show that two red-detuned laser pulses, neither of which could yield a significant upper-level population individually, lead to the coherent excitation of a semiconductor quantum dot. We characterize the emitted single photons and show that they have properties comparable to those achieved under resonant excitation schemes.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The quest for the perfect single-photon source includes finding the optimal protocol for exciting the quantum emitter. Based on a recently proposed, so-called SUPER (swing-up of quantum emitter population) scheme, we demonstrate experimentally that two red-detuned laser pulses, neither of which could yield a significant upper-level population individually, lead to the coherent excitation of a semiconductor quantum dot. We characterize the emitted single photons and show that they have properties comparable to those achieved under resonant excitation schemes.

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