Extension of the p-Spectrum Method to the Higher Frequencies

• Authors: N. Pałka
• Languages of publication: EN

Abstracts

EN

The p-spectrum method is a time domain spectroscopy-based technique for reflection analysis of materials (including explosives) that takes into account only part of the reflected signal, which is next analyzed via the Fourier transform. The method is limited to the frequencies of about 1.8 THz due to the pulse properties of our time domain spectroscopy setup. In this paper we theoretically prove that application of a shorter pulse can increase this frequency range up to 2.2 THz, that enables analysis of penthrite and octogen, two important explosives.

Keywords

EN

07.57.Ty; 78.20.Ci; 78.40.-q; 78.47.jg

Discipline

• 07.57.Ty: Infrared spectrometers, auxiliary equipment, and techniques
• 78.20.Ci: Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)
• 78.47.jg: Time resolved reflection spectroscopy
• 78.40.-q: Absorption and reflection spectra: visible and ultraviolet(for infrared spectra, see 78.30.-j; for optical spectra of superconductors, see 74.25.nd; for time resolved reflection spectroscopy, see 78.47.jg; for multiphoton absorption, see 79.20.Ws in impact phenomena)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 124
• Issue: 3
• Pages: 534-537

Dates

published

2013-09

Contributors

author

N. Pałka

• Institute of Optoelectronics, Military University of Technology, S. Kaliskiego 2, 00-908 Warsaw, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.124.534