Ahn, YH Yahng, JS Sohn, JY Yee, KJ Hohng, SC Woo, JC Kim, DS Meier, T Koch, SW Lim, YS Kim, EK 2024-01-21T15:33:41Z 2024-01-21T15:33:41Z 2021-09-05 1999-05-10 0031-9007 https://pubs.kist.re.kr/handle/201004/142190 Frequency mixing (2 omega(1) - omega(2)) is demonstrated in femtosecond nondegenerate four-wave mixing (FWM) on GaAs multiple quantum wells using two synchronized, independently tunable lasers. The frequency mixing component in the spectrally resolved FWM coexists with the exciton resonance, and it dominates over the exciton component at high intensity and high detuning. This off-resonant component is present only for delays smaller than the temporal pulse width, whereas the resonant exciton component survives for longer delays. English AMER PHYSICAL SOC FEMTOSECOND From exciton resonance to frequency mixing in GaAs multiple quantum wells Article 10.1103/PhysRevLett.82.3879 1 PHYSICAL REVIEW LETTERS, v.82, no.19, pp.3879 - 3882 PHYSICAL REVIEW LETTERS 82 19 3879 3882 scie scopus 000080207500038 2-s2.0-0032614168 Physics, Multidisciplinary Physics Article FEMTOSECOND GaAs