1.4k citations · 2k across the 7 of their papers we have counts for
7 papers
An On/Off Berry Phase Switch in Circular Graphene Resonators
Fereshte Ghahari, Daniel Walkup, Christopher Gutiérrez +10
The phase of a quantum state may not return to its original value after the system's parameters cycle around a closed path; instead, the wavefunction may acquire a measurable phase…
Phase-locked array of quantum cascade lasers with an intracavity spatial filter
Lei Wang, Jinchuan Zhang, Zhiwei Jia +6
Phase-locking an array of quantum cascade lasers is an effective way to achieve higher output power and beam shaping. In this article, based on Talbot effect, we show a new-type ph…
Phase-locked array of quantum cascade lasers with an integrated Talbot cavity
Lei Wang, Jin-Chuan Zhang, Zhi-Wei Jia +7
We show a phase-locked array of three quantum cascade lasers with an integrated Talbot cavity at one side of the laser array. The coupling scheme is called diffraction coupling. By…
Creating and Probing Electron Whispering Gallery Modes in Graphene
Yue Zhao, Jonathan Wyrick, Fabian D. Natterer +7
Designing high-finesse resonant cavities for electronic waves faces challenges due to short electron coherence lengths in solids. Previous approaches, e.g. the seminal nanometer-si…
Magnetoresistance measurements of Graphene at the Charge Neutrality Point
Yue Zhao, Paul Cadden-Zimansky, Fereshte Ghahari +1
We report on transport measurements of the insulating state that forms at the charge neutrality point of graphene in a magnetic field. Using both conventional two-terminal measurem…
Measurement of the ν= 1/3 fractional quantum Hall energy gap in suspended graphene
Fereshte Ghahari, Yue Zhao, Paul Cadden-Zimansky +2
We report on magnetotransport measurements of multi-terminal suspended graphene devices. Fully developed integer quantum Hall states appear in magnetic fields as low as 2 T. At hig…
Tuning the graphene work function by electric field effect
Young-Jun Yu, Yue Zhao, Sunmin Ryu +3
We report variation of the work function for single and bi-layer graphene devices measured by scanning Kelvin probe microscopy (SKPM). Using the electric field effect, the work fun…