84 citations · 139 across the 5 of their papers we have counts for
5 papers
Photoelectron spectroscopy of 3s3p doubly excited helium dressed with strong near-infrared laser fields
Mizuho Fushitani, Chien-Nan Liu, Yuki Ono +9
We report time-resolved photoelectron spectroscopy of the doubly excited states of helium dressed by an intense near-infrared (NIR) laser field. Using synchronized XUV free-…
Effect of n- and p-type Doping on Coherent Phonons in GaN
Kunie Ishioka, Keiko Kato, Naoki Ohashi +3
Effect of doping on the carrier-phonon interaction in wurtzite GaN is investigated by pump-probe reflectivity measurements using 3.1 eV light in near resonance with the fundamental…
Decay and Frequency Shift of Inter and Intravalley Phonons in Graphene -Dirac Cone Migration-
K. Sasaki, K. Kato, Y. Tokura +2
By considering analytical expressions for the self-energies of intervalley and intravalley phonons in graphene, we describe the behavior of D, 2D, and D Raman bands with changes…
Pseudospin for Raman D Band in Armchair Graphene Nanoribbons
K. Sasaki, K. Kato, Y. Tokura +2
By analytically constructing the matrix elements of an electron-phonon interaction for the band in the Raman spectra of armchair graphene nanoribbons, we show that pseudospin a…
Theory of optical transitions in graphene nanoribbons
K. Sasaki, K. Kato, Y. Tokura +2
Matrix elements of electron-light interactions for armchair and zigzag graphene nanoribbons are constructed analytically using a tight-binding model. The changes in wavenumber ($Δn…