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 journalConference article

1 Citation (Scopus)

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 languageEnglish (US)
Pages (from-to)83-91
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5219
DOIs
StatePublished - Dec 1 2003

Fingerprint

Thin Films
Laser pulses
Thin films
Maxwell equations
thin films
pulses
Nanowires
carrier waves
Maxwell's equations
Maxwell equation
Time Domain
Finite Difference
nanowires
Invariant

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

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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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