3 papers
physics.comp-ph2021
Origin of the Background Absorption in Carbon Nanotubes: Phonon-Assisted Excitonic Continuum
Stefano Dal Forno, Natsumi Komatsu, Michael Wais +8
Excitonic effects in 1D semiconductors can be qualitatively different from those in higher dimensions. In particular, the Sommerfeld factor, the ratio of the above-band-edge excito…
physics.optics2021
Giant Terahertz Polarization Rotation in Ultrathin Films of Aligned Carbon Nanotubes
Andrey Baydin, Natsumi Komatsu, Fuyang Tay +4
For facile manipulation of polarization states of light for applications in communications, imaging, and information processing, an efficient mechanism is desired for rotating ligh…
physics.app-ph2019
Groove-Assisted Global Spontaneous Alignment of Carbon Nanotubes in Vacuum Filtration
Natsumi Komatsu, Motonori Nakamura, Saunab Ghosh +7
Ever since the discovery of carbon nanotubes (CNTs), it has long been a challenging goal to create macroscopically ordered assemblies, or crystals, of CNTs that preserve the one-di…