81 citations · 137 across the 5 of their papers we have counts for
5 papers
Evidence for Topological Band-to-Band Transitions in a Type-II Weyl Semimetal
Seyyedesadaf Pournia, Giriraj Jnawali, Samuel Linser +2
The ternary van der Waals material NbIrTe is a Type-II Weyl semimetal. We use a tunable circularly polarized mid-infrared laser to investigate the existence of band-to-band exc…
Ultrafast Photoinduced Band Splitting and Carrier Dynamics in Chiral Tellurium Nanosheets
Giriraj Jnawali, Yuan Xiang, Samuel M. Linser +10
Trigonal tellurium (Te) is a chiral semiconductor that lacks both mirror and inversion symmetries, resulting in complex band structures with Weyl crossings and unique spin textures…
Exploring the Band Structure of Wurtzite InAs Nanowires Using Photocurrent Spectroscopy
Seyyedesadaf Pournia, Samuel Linser, Giriraj Jnawali +8
We use polarized photocurrent spectroscopy in a nanowire device to investigate the band structure of hexagonal Wurtzite InAs. Signatures of optical transitions between four valence…
Strong Hot Carrier Effects Observed in a Single Nanowire Heterostructure
Iraj Abbasian Shojaei, Samuel Linser, Giriraj Jnawali +9
We use Transient Rayleigh Scattering to study the thermalization of hot photoexcited carriers in single GaAsSb/InP nanowire heterostructures. By comparing the energy loss rate in s…
Revealing Optical Transitions and Carrier Recombination Dynamics within the Bulk Band Structure of Bi2Se3
Giriraj Jnawali, Samuel Linser, Iraj Abbasian Shojaei +5
Bismuth selenide (Bi2Se3) is a prototypical three-dimensional topological insulator whose Dirac surface states have been extensively studied theoretically and experimentally. Surpr…