289 citations · 851 across the 10 of their papers we have counts for
11 papers
High precision measurements of the proton elastic electromagnetic form factors and their ratio at = 0.50, 2.64, 3.20, and 4.10 GeV
I. A. Qattan, J. Arrington, K. Aniol +37
The advent of high-intensity, high-polarization electron beams led to significantly improved measurements of the ratio of the proton's charge to electric form factors, GEp/GMp. How…
Evolution of Raman spectra in MoWTe alloys
Sean M. Oliver, Ryan Beams, Sergiy Krylyuk +9
The structural polymorphism in transition metal dichalcogenides (TMDs) provides exciting opportunities for developing advanced electronics. For example, MoTe crystallizes in th…
Phonon Anharmonicity in Bulk -MoTe
Jaydeep Joshi, Iris Stone, Ryan Beams +4
We examine anharmonic contributions to the optical phonon modes in bulk -MoTe through temperature-dependent Raman spectroscopy. At temperatures ranging from 100 K to 200 K…
Integrated nanophotonics based on wire plasmons and atomically-thin material
Kenneth M. Goodfellow, Ryan Beams, Chitraleema Chakraborty +2
Photonic integrated circuits are an enabling technology in modern communications systems. The continually increasing demands for higher-speed and lower operating power devices have…
Theory of spatial coherence in near-field Raman scattering
Luiz Gustavo Cançado, Ryan Beams, Ado Jorio +1
A theoretical study describing the coherence properties of near-field Raman scattering in two- and one-dimensional systems is presented. The model is applied to the Raman modes of…
Nanoscale fluorescence lifetime imaging with a single diamond NV center
Ryan Beams, Dallas Smith, Timothy W. Johnson +3
Solid-state quantum emitters, such as artificially engineered quantum dots or naturally occurring defects in solids, are being investigated for applications ranging from quantum in…
Graphene Transfer with Reduced Residue
Michael Her, Ryan Beams, Lukas Novotny
We present a new transfer procedure for graphene using acetic acid, which removes the residue that is common in standard acetone treatments. Post-transfer samples cleaned with acet…
Controllable Optical Negative Refraction and Phase Conjugation in Graphene
Hayk Harutyunyan, Ryan Beams, Lukas Novotny
The development of optical metamaterials has resulted in the demonstration of remarkable physical properties, including cloaking, optical magnetism, and negative refraction. The la…
Optical Measurement of the Phase-Breaking Length in Graphene
Ryan Beams, Luiz Gustavo Cançado, Lukas Novotny
In mesoscopic physics, interference effects play a central role on the transport properties of conduction electrons, giving rise to exotic phenomena such as weak localization, Ahar…
Optical Measurement of the Phase-Breaking Length in Graphene
Luiz Gustavo Cancado, Ryan Beams, Lukas Novotny
This paper reports the experimental determination of the phase-breaking length L of conduction electrons in graphene using Raman spectroscopy. Based on the double-resonance model,…
Precision Rosenbluth measurement of the proton elastic form factors
I. A. Qattan, J. Arrington, R. E. Segel +49
We report the results of a new Rosenbluth measurement of the proton form factors at Q^2 values of 2.64, 3.20 and 4.10 GeV^2. Cross sections were determined by detecting the recoili…