669 citations · 3.7k across the 64 of their papers we have counts for
3 papers · 1 filter
Ultrafast supercontinuum spectroscopy of carrier multiplication and biexcitonic effects in excited states of PbS quantum dots
F. Gesuele, M. Y. Sfeir, W. -K. Koh +3
We examine the multiple exciton population dynamics in PbS quantum dots by ultrafast spectrally-resolved supercontinuum transient absorption (SC-TA). We simultaneously probe the fi…
High-reflectivity, high-Q micromechanical membranes via guided resonances for enhanced optomechanical coupling
Catvu H. Bui, Jiangjun Zheng, S. W. Hoch +3
Using Fano-type guided resonances (GRs) in photonic crystal (PhC) slab structures, we numerically and experimentally demonstrate optical reflectivity enhancement of high-Q SiNx mem…
Selective tuning of high-Q silicon photonic crystal nanocavities via laser-assisted local oxidation
Charlton J. Chen, Jiangjun Zheng, Tingyi Gu +5
We examine the cavity resonance tuning of high-Q silicon photonic crystal heterostructures by localized laser-assisted thermal oxidation using a 532 nm continuous wave laser focuse…