Relative permittivity of bulk Parylene-C polymer in the infrared regime

Chandraprakash Chindam, Akhlesh Lakhtakia, Osama O. Awadelkarim, Wasim Orfali

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Infrared spectroscopy experiments in the 15-149 THz spectral regime were performed in the transmission mode on a thin film of bulk Parylene-C polymer at normal incidence. The relative permittivity of bulk Parylene-C polymer in this regime was modeled as comprising a frequency-independent term as well as contributions from 32 Lorentz oscillators. A least-squares minimization algorithm and a hybrid genetic algorithm were used to determine the frequency-independent term as well as all parameters characterizing the Lorentz oscillators from the measured transmittance spectrum itself.

Original languageEnglish (US)
Pages (from-to)2139-2146
Number of pages8
JournalJournal of Electromagnetic Waves and Applications
Volume29
Issue number16
DOIs
StatePublished - Nov 2 2015

Fingerprint

Polymers
Permittivity
oscillators
permittivity
Infrared radiation
polymers
genetic algorithms
Infrared spectroscopy
transmittance
incidence
Genetic algorithms
infrared spectroscopy
Thin films
optimization
thin films
Experiments
parylene

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy(all)

Cite this

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abstract = "Infrared spectroscopy experiments in the 15-149 THz spectral regime were performed in the transmission mode on a thin film of bulk Parylene-C polymer at normal incidence. The relative permittivity of bulk Parylene-C polymer in this regime was modeled as comprising a frequency-independent term as well as contributions from 32 Lorentz oscillators. A least-squares minimization algorithm and a hybrid genetic algorithm were used to determine the frequency-independent term as well as all parameters characterizing the Lorentz oscillators from the measured transmittance spectrum itself.",
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Relative permittivity of bulk Parylene-C polymer in the infrared regime. / Chindam, Chandraprakash; Lakhtakia, Akhlesh; Awadelkarim, Osama O.; Orfali, Wasim.

In: Journal of Electromagnetic Waves and Applications, Vol. 29, No. 16, 02.11.2015, p. 2139-2146.

Research output: Contribution to journalArticle

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