Optical Interference Effects in Visible-Near Infrared Spectral Range for Arrays of Vertically Aligned Multiwalled Carbon Nanotubes

• Authors: M. Wąsik , J. Judek , K. Świtkowski , M. Zdrojek
• Languages of publication: EN

Abstracts

EN

Based on the reflectance spectra for radiation wavelength from about 380 nm to 1.8 μm, the optical interference effects in vertically aligned multiwalled carbon nanotubes films are studied. We performed the measurements for two complementary polarization states of incoming radiation (s- and p-polarization) for nanotubes arrays sparse enough for interference effects to be possible to observe. By performing the measurements for different wavelengths and incidence angles, we mapped the evolution of interference maxima/minima of reflectance signal. The results from this novel approach indicate that for the radiation polarized perpendicularly to tubes axis (s-polarization), the real part of the effective refractive index can be estimated from the classic Fabry-Pérot model. In order to describe the differences between spectra obtained for s- and p-polarizations we discuss the most important factors that affect the reflectance signal in case of investigated nanotubes arrays.

Keywords

EN

78.20.Ci; 78.67.Ch; 81.07.De

Discipline

• 81.07.De: Nanotubes
• 78.20.Ci: Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)
• 78.67.Ch: Nanotubes

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 2
• Pages: 232-236

Dates

published

2017-02

received

2016-02-05

(unknown)

2016-12-30

Contributors

author

M. Wąsik

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

author

J. Judek

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

author

K. Świtkowski

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

author

M. Zdrojek

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

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Identifiers

DOI

10.12693/APhysPolA.131.232