학술논문

Direct time-domain observation of ultrafast exciton formation in monolayer MoS2
Document Type
Conference
Source
2018 Conference on Lasers and Electro-Optics (CLEO) Lasers and Electro-Optics (CLEO), 2018 Conference on. :1-2 May, 2018
Subject
General Topics for Engineers
Photonics and Electrooptics
Excitons
Optical pumping
Optical pulses
Transient analysis
Ultrafast optics
Molybdenum
Sulfur
Language
Abstract
We study the transient optical response of monolayer MoS 2 with an unprecedented temporal resolution. From the build-up dynamics of the transient signal around A/B excitonic peaks we directly extract the characteristic time-scale for exciton formation process, which ranges between 15 and 35 fs.