76 citations · 115 across the 4 of their papers we have counts for
4 papers
Large Cross-Phase Modulations at the Few-Photon Level
Zi-Yu Liu, Yi-Hsin Chen, Yen-Chun Chen +5
We demonstrate an efficient cross-phase modulation (XPM) based on a closed-loop double-Λ system. The property of the double-Λ medium can be controlled by changing the phases of the…
Low-energy trions in graphene quantum dots
H. -C. Cheng, N. -Y. Lue, Y. -C. Chen +1
We investigate, within the envelope function approximation, the low-energy states of trions in graphene quantum dots. The presence of valley pseudospin in graphene as an electron d…
Low-light-level four-wave mixing by quantum interference
Chang-Kai Chiu, Yi-Hsin Chen, Yen-Chun Chen +3
We observed electromagnetically-induced-transparency-based four-wave mixing (FWM) in the pulsed regime at low light levels. The FWM conversion efficiency of 3.8(9)% was observed in…
Few-Photon All-Optical π Phase modulation Based on a Double-Λ System
Yen-Chun Chen, Hao-Chung Chen, Hsiang-Yu Lo +4
We propose an efficient all-optical phase modulation based on a double-Λ system and demonstrate a π phase shift of a few-photon pulse induced by another few-photon pulse in cold ru…