Phase effects on reflection of narrow-extent optical pulses from axially excited chiral sculptured thin films

Joseph B. Geddes; Akhlesh Lakhtakia

doi:10.1117/12.501083

Phase effects on reflection of narrow-extent optical pulses from axially excited chiral sculptured thin films

Joseph B. Geddes, Akhlesh Lakhtakia

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

Sculptured thin films (STFs) comprise parallel bent nanowires that are 30-100 nm in diameter. Using a finite-difference algorithm, we solved the time-domain Maxwell equations to investigate the reflection of optical narrow-extent pulses from both linear and nonlinear chiral STFs. Although the axial component of the Poynting vector - the pulse shape - is invariant to changes of carrier wave phase in the incident pulse, we determined that the reflected pulse shape is affected by those changes.

Original language	English (US)
Pages (from-to)	83-91
Number of pages	9
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5219
DOIs	https://doi.org/10.1117/12.501083
State	Published - Dec 1 2003

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering
Condensed Matter Physics

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abstract = "Sculptured thin films (STFs) comprise parallel bent nanowires that are 30-100 nm in diameter. Using a finite-difference algorithm, we solved the time-domain Maxwell equations to investigate the reflection of optical narrow-extent pulses from both linear and nonlinear chiral STFs. Although the axial component of the Poynting vector - the pulse shape - is invariant to changes of carrier wave phase in the incident pulse, we determined that the reflected pulse shape is affected by those changes.",

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AB - Sculptured thin films (STFs) comprise parallel bent nanowires that are 30-100 nm in diameter. Using a finite-difference algorithm, we solved the time-domain Maxwell equations to investigate the reflection of optical narrow-extent pulses from both linear and nonlinear chiral STFs. Although the axial component of the Poynting vector - the pulse shape - is invariant to changes of carrier wave phase in the incident pulse, we determined that the reflected pulse shape is affected by those changes.

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