Title :
Ultrafast carrier dynamics in single and few atomic layer MoS2 studied by two-color optical pump-probe
Author :
Haining Wang ; Changjian Zhang ; Rana, Farhan
Author_Institution :
Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA
Abstract :
Our ultrafast optical pump-probe measurements of 2D atomic material MoS2 show that the interband and intraband relaxation dynamics of photoexcited carriers vary significantly as a function of the number of atomic layers. Coherent phonon oscillations are also observed in our measurements.
Keywords :
Raman spectra; high-speed optical techniques; molybdenum compounds; optical pumping; phonons; semiconductor materials; 2D atomic material; MoS2; coherent phonon oscillations; few-atomic layer MoS2; interband relaxation dynamics; intraband relaxation dynamics; photoexcited carriers; single-atomic layer MoS2; two-color optical pump-probe; ultrafast carrier dynamics; ultrafast optical pump-probe measurements; Optical imaging; Optical pulses; Optical pumping; Optical scattering; Phonons; Probes; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
