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Generation of 30-fs pulses from a diode-pumped graphene mode-locked Yb:CaYAlO4 laser
Jie Ma, Haitao Huang, Kaijie Ning +5
Stable 30 fs pulses centered at 1068 nm (less than 10 optical cycles) are demonstrated in a diode pumped Yb:CaYAlO4 laser by using high-quality chemical vapor deposited monolayer g…
Electronic structures and theoretical modelling of two-dimensional group-VIB transition metal dichalcogenides
Gui-Bin Liu, Di Xiao, Yugui Yao +2
Atomically thin group-VIB transition metal dichalcogenides (TMDs) have recently emerged as a new class of two-dimensional (2D) semiconductors with extraordinary properties includin…
Photo-Nernst current in graphene
Helin Cao, Grant Aivazian, Zaiyao Fei +3
Photocurrent measurements provide a powerful means of studying the spatially resolved optoelectronic and electrical properties of a material or device. Generally speaking there are…
Valley excitons in two-dimensional semiconductors
Hongyi Yu, Xiaodong Cui, Xiaodong Xu +1
Monolayer group-VIB transition metal dichalcogenides have recently emerged as a new class of semiconductors in the two-dimensional limit. The attractive properties include: the vis…
Trion Formation Dynamics in Monolayer Transition Metal Dichalcogenides
Akshay Singh, Galan Moody, Kha Tran +13
We report charged exciton (trion) formation dynamics in doped monolayer transition metal dichalcogenides (TMDs), specifically molybdenum diselenide (MoSe2), using resonant two-colo…
Electrical Control of Second-Harmonic Generation in a WSe2 Monolayer Transistor
Kyle L. Seyler, John R. Schaibley, Pu Gong +7
Nonlinear optical frequency conversion, in which optical fields interact with a nonlinear medium to produce new field frequencies, is ubiquitous in modern photonic systems. However…