Dual-Layer Frequency-Selective Grid Polarizers on Thin-Film Substrates for THz Applications

Yurchenko, V.B.; Murphy, John A.; Barton, J.S.; Verheggen, J.; Rodgers, K. F.

doi:10.1109/eumc.2008.4751628

Cited by 5 publications

(7 citation statements)

References 8 publications

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“…An attempt of making the polarizers of this kind was described in Ref. [17]. Other kinds of advanced polarizers have been developed later [18][19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Multilayer Grid Polarizers: Simulations for Millimeter Waves

Yurchenko¹,

Çiydem²,

Grądziel³

et al. 2021

PIER C

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Multilayer grid polarizers for millimeter waves produced with photolithographic technology have been simulated. Polarizers have spectral bands of enhanced performance where polarization extinction ratio in decibels grows in proportion to the number of layers. Full-wave modeling is compared with three asymptotic models for subwavelength gratings using adjusted grating parameters. Random variations of interlayer spacings reduce the enhancement of polarizing performance, yet the latter continues to grow in proportion to the number of layers. Broadband signal detection is also considered.

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“…An attempt of making the polarizers of this kind was described in Ref. [17]. Other kinds of advanced polarizers have been developed later [18][19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Multilayer Grid Polarizers: Simulations for Millimeter Waves

Yurchenko¹,

Çiydem²,

Grądziel³

et al. 2021

PIER C

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“…More recently, using the rigorous coupled-wave analysis theory combined with the Brewster angle effect, a micrometer-pitch wire-grid polarizer was designed and fabricated, of which the measured extinction ratio was over 23 dB in 0:5 − 3 THz [7]. In order to break the limitation of the finer wire width of the conventional wire-grid polarizer in THz, a dual-layer frequency-selective grid polarizer for ease of fabrication was presented [8]. Actually, transmission characteristics of doublegrating and its application as Fabry-Perot (FP) interferometers had been deeply discussed in the 1970s [9].…”

Section: Introductionmentioning

confidence: 99%

Double-grating polarizer for terahertz radiation with high extinction ratio

Sun

et al. 2010

Appl. Opt.

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We propose a layout of a high extinction ratio polarizer in the terahertz (THz) domain. This polarizer is composed of two dense metal wire gratings separated in parallel, of which the grating constant is much smaller than the incident wavelength. Numerical analysis shows that, in the range of 0.3 THz-3 THz, the transmission of TM wave through this polarizer is higher than 97% and the extinction ratio achieved is about 180 dB--much higher than the conventional wire-grid polarizer.

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“…Theoretical analysis and computer simulations of dual-layer grid polarizers have been made earlier [I ] by utilizing either Wainshtein's approximation for analytical description of subwavelength grids in free space [4] or regularization technique for numerical modeling of microstrip gratings on thin-film substrates [5] (in all cases, the grid period p is small as compared to the radiation wavelength A).…”

mentioning

confidence: 99%