[We-A2-G] Coherence and Control of Solid-State Quantum Emitters

11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)

[We-A2-G-02] Enhancement of Femtosecond Photon Echoes in InAs Quantum Dots Using Chirped Pulses and Time-Resolved Measurements via Frequency Up-conversion

〇Yuta Kochi^1,2, Rei Ishihara¹, Sunao Kurimura³, Kouichi Akahane⁴, Ryo Tamaki^1,2, Junko Ishi-Hayase^1,2 (1. Keio University (Japan), 2. Keio CSRN (Japan), 3. NIMS (Japan), 4. NICT (Japan))

Photon echoes in quantum-dot ensembles enable THz-bandwidth quantum memories but suffer from low efficiency. By combining adiabatic rapid passage with a femtosecond up-conversion single-photon detector, we demonstrate high-visibility phase decoding of regenerated femtosecond time-bin signals.