Electro-optical modulation for a boron nitride nanotube probed by first-principles calculations
Resource
Applied Physics Letters 89 (22): 223105
Journal
Applied Physics Letters
Journal Volume
89
Journal Issue
22
Pages
-
Date Issued
2006
Date
2006
Author(s)
Abstract
The electro-optical modulation effect of a (10,0) boron nitride nanotube is investigated by first-principles, density functional theory calculations. The optical properties of boron nitride nanotubes can be tuned through perturbation by a transverse electric field. Large optical anisotropy in variations of the absorption spectra and refractive indices in response to external electric field is found. In addition, a method called the band-resolved absorption density analysis technique is developed to investigate the detailed optical absorption transition processes. The result is consistent with the recent experimental observation [M. Ishigami, Phys. Rev. Lett. 94, 56804 (2005)] and suggests that the boron nitride nanotubes can be a promising material for electro-optical modulation device applications. © 2006 American Institute of Physics.
SDGs
Other Subjects
Boron compounds; Electric fields; Electrooptical effects; Light absorption; Light modulation; Probability density function; Boron nitride nanotubes; Electro-optical modulation; Nanotubes
Type
journal article
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