Research on Terahertz Filters Employing the Effect of Frustrated Total Internal Reflection

Abstract:

The optical filter under development employing frustrated total internal reflection is a micromechanical device containing two silicon rectangular prisms. There is flat silicon plane among hypotenuse edges of the prisms. The silicon plane is a Fabry-Perot resonator, with clearances h1 among the plate and prism edges being its mirrors. Theoretical resolution of the optical filter would be R ≈ 1,5∙103 if h1 = 50 µm and R ≈ 3∙105 if h1 = 100 µm with the thickness of the silicon plane being h = 65 µm; wavelength λ = 100 µm; free spectral region Δλ/λ ≈ 0,3…0,4, transmission in the maximum of spectral characteristics 0,6 (provided input and output silicon prism legs bloom).

• Periodical: Key Engineering Materials (Volume 437)
• Pages: 281-285
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.437.281
• Online since: May 2010
• Authors: Aleksandra S. Syrneva, Vladimir V. Chesnokov, Dimitry V. Chesnokov
• Keywords: Fabry-Perot Resonator, Frustrated Total Internal Reflection, Optical Filter, Silicon Prism

References

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