2000
DOI: 10.1364/ao.39.003649
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Investigation of the effect of finite grating size on the performance of guided-mode resonance filters

Abstract: We evaluate the effect of finite aperture gratings on the spectral and efficiency characteristics of guided-mode resonance filters. A simple analytical model based on the attenuation properties of the waveguide and a fixed length of the grating aperture is developed. The results from this model are in good agreement with experimental filters formed with subwavelength period photoresist gratings and solgel waveguides.

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Cited by 98 publications
(46 citation statements)
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“…Similarly, an applied wave must overlap hundreds of grating periods to excite a sufficiently strong guided-mode so as to produce a strong resonance condition. This means that for a real device to approach the performance of the infinitely periodic device, it must be composed of hundreds of grating periods [17].…”
Section: Effect Of Finite Lengthmentioning
confidence: 99%
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“…Similarly, an applied wave must overlap hundreds of grating periods to excite a sufficiently strong guided-mode so as to produce a strong resonance condition. This means that for a real device to approach the performance of the infinitely periodic device, it must be composed of hundreds of grating periods [17].…”
Section: Effect Of Finite Lengthmentioning
confidence: 99%
“…Due to the physics of guided mode resonance, devices must often be hundreds of grating periods long for a finitesize structure to approach the performance of the infinitely periodic structure [17]. At radio frequencies, this often leads to prohibitively large devices that are dozens of meters in length.…”
Section: Introductionmentioning
confidence: 99%
“…This design consideration presents a considerable challenge. Peak reflectance is expected to decrease with an accompanying increase in spectral FWHM as the pixel lateral extent decreases [11][12][13][14][15][16] . On the other hand, smaller, arrayed RSG configurations are more easily integrated with existing sensing and detecting arrays.…”
Section: Measured Rsg Spectramentioning
confidence: 99%
“…In the past years, guided-mode resonance filters (GMRFs) using dielectric gratings with finite grating periods and finite input beam size have been analyzed using different numerical approaches [17][18][19]. In this paper, we present the theoretical study of the effect of finite size on RA-SPP resonances in metallic gratings that are not presented in dielectric GMRFs.…”
Section: Introductionmentioning
confidence: 99%