Shupeng Yu

TL;DR: In this paper , air lasing naturally created inside a filament can serve as an ideal light source to probe Raman coherence excited by the femtosecond pump, producing coherent Raman signal with molecular vibrational signatures.

TL;DR: In this paper, the authors proposed and experimentally demonstrated photon retention and subsequent re-emittance with the quantum coherence in a system of coherently excited molecular nitrogen ions (N 2 + ) which are produced using a strong 800-nm femtosecond laser pulse.

TL;DR: In this paper, the authors proposed and experimentally demonstrated photon retention and subsequent re-emittance with the quantum coherence in a system of coherently excited molecular nitrogen ions (N2+) which are produced using a strong 800 nm femtosecond laser pulse.

TL;DR: In this article, the rotational coherence of the A2+1 resonance excitation with two-color femtosecond laser pulses has been analyzed and shown to correspond to rotational beat frequencies of the CO+ state.

TL;DR: In this article , a robust low-loss optical interface by tiling passive and active thin film lithium niobate (TFLN) and active (i.e., doped with rare earth ions) TFLN substrates for monolithic integration of passive/active photonics was demonstrated.