Perfect absorber metamaterial for real time detection and recognition of micro-poisons in aqueous solutions and atmosphere using millimeter wavelength spectroscopy

A. Abramovich, D. Rotshild, M. Ochana, D. Rozban

פרסום מחקרי: פרק בספר / בדוח / בכנספרסום בספר כנסביקורת עמיתים

תקציר

Metamaterials are artificial materials not exist in the nature. They are also known as Left Handed Material (LHM) in which both the permeability and permittivity are negative. A perfect absorber metamaterial for millimeter wavelength can be artificially tailored and manufactured as two dimensional matrixes of metal shapes on a dielectric infstrate. Those perfect absorbers metamaterial can be designed to be frequency selective with high Q property. In This study we present a new method that can provide real-time response by combining advanced spectroscopy methods in millimeter Wavelength (MMW) regime and perfect absorber metamaterial. This method is based on very inexpensive perfect absorber metamaterial, with a high Q factor. It was realized by printed metal shapes on FR4 infstrate with ground plane on the bottom. The resonance frequency of the perfect absorber will be determined according to the geometrical metal shape dimensions and the dielectric constant of the infstrate. The spectral measurements were carried out using high resolution coherence THz spectroscopy system. Due to the perfect absorber sensitivity and its high Q property, the perfect absorber metamaterial is very sensitive to environmental micro-poisons, which influence its resonance frequency. Using a high-resolution spectroscopy system it is possible to detect and quantify this influence. In this study we present very promising experimental results of Malathion detection using perfect absorber metamaterial. The manufacturing of such perfect absorber metamaterial was carried out using the well-known and very inexpensive PCB technology.

שפה מקוריתאנגלית
כותר פרסום המארחTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX
עורכיםLaurence P. Sadwick, Tianxin Yang
מוציא לאורSPIE
מסת"ב (אלקטרוני)9781628419825
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 2016
אירועTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX - San Francisco, ארצות הברית
משך הזמן: 15 פבר׳ 201618 פבר׳ 2016

סדרות פרסומים

שםProceedings of SPIE - The International Society for Optical Engineering
כרך9747
ISSN (מודפס)0277-786X
ISSN (אלקטרוני)1996-756X

כנס

כנסTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX
מדינה/אזורארצות הברית
עירSan Francisco
תקופה15/02/1618/02/16

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