Polarization independence of a one-dimensional grating in conical mounting

Lacour, Dominique; Granet, Gérard; Plumey, Jean-Píerre; Mure-Ravaud, A.

doi:10.1364/josaa.20.001546

Cited by 56 publications

(27 citation statements)

References 22 publications

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“…To our knowledge, less attention has been paid to polarization-independent one-dimensional grating GMR filters, although GMR filters have been extensively studied in recent years. The reflection of a onedimensional grating structure depends essentially on the polarization state of the incidence light, and for the same GMR structure, the resonance wavelengths of TM-polarized and TE-polarized lights will locate at different wavelengths [12]. This characteristic limits the usage of this kind of GMR filter in the nonpolarizing field.…”

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confidence: 99%

Nonpolarizing guided-mode resonance filter

Yao

Shao

et al. 2009

Opt. Lett.

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A normal-incidence nonpolarizing guided-mode resonance filter is designed. There are two waveguide layers and one grating layer in the filter. By adjusting the distance between the two waveguide layers, the same resonance wavelength for both TE and TM polarization can be achieved. An antireflection design method is also used to decrease the sideband reflection of the filter. The results show that the filter has high reflection, more than 99.9% at 500 nm, and the FWHMs of TE-and TM-polarized light are 2.16 and 0.15 nm, respectively.

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confidence: 99%

Nonpolarizing guided-mode resonance filter

Yao

Shao

et al. 2009

Opt. Lett.

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“…Yet, most of the perturbative methods developed for guided mode resonance gratings treat the scalar problem (typically, a 1D grating illuminated along a direction of periodicity). Now, the vectorial case (1D grating illuminated under conical incidence, or 2D grating) presents a strong interest, especially when polarization independent configurations are sought [26][27][28][29][30]. The complexity of the behavior of resonant structures with respect to the incident polarization is then a strong incentive for developing an approximate model giving a physical insight of the vectorial resonance phenomenon [31,32].…”

Section: Introductionmentioning

confidence: 99%

Vectorial model for guided-mode resonance gratings

2018

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We propose a self-consistent vectorial method, based on a Green's function technique, to describe the Fano resonances that appear in guided mode resonance gratings. The model provides intuitive expressions of the reflectivity and transmittivity matrices of the structure, involving coupling integrals between the modes of a planar reference structure and radiative modes. These expressions are used to derive a physical analysis in configurations where the effect of the incident polarization is not trivial. We provide numerical validations of our model. On a technical point of view, we show how the Green's tensor of our planar reference structure can be expressed as two scalar Green's functions, and how to deal with the singularity of the Green's tensor.

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“…Similarly high efficiency polarization independent designed and fabricated gratings in fused silica for wideband transmission are used in chirped pulse applications 2 . Narrowband polarization independent 1D guided mode resonance filters GMRFs are designed at conical incidence for simultaneous excitation of two modes, the spectral position and width are controlled by Polymer grating duty cycles and depth respectively for TE and TM modes 3 . Similarly, narrowband reflection filters as the resonance grating filters showing polarization independence behavior by considering orthogonal incidence plane parallel to grating grooves with the result that a small change in the conical angle can lead to a large drop in the efficiency and distortion of lineshape of the resonance peak 4 .…”

Section: Introductionmentioning

confidence: 99%

Nonpolarizing single layer inorganic and double layer organic-inorganic one-dimensional guided mode resonance filters

2013

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Guided mode resonance (GMRF) phenomena occurs when the evanescent orders of a diffraction grating are coupled to the waveguide modes and propagate out at given optical parameters such as wavelength, angle, and state of polarization of incident light. The outcoupling field from a waveguide is, in general, polarization sensitive. Polarization insensitive 1D subwavelength grating structures with high diffraction efficiency at normal and oblique incidence are required, for example, in optical communications where output light may possess any polarization state. This means that an s-or p-polarized input optical field, which generally couples TE-or TM-modes in the waveguide under different resonance conditions, can be tuned at one resonance by selecting suitable grating parameters, regardless of the input polarization state. All of the polarization insensitive devices fabricated to date either employing a method which is not cost-effective or simple enough to some extent. In this work, we report the design and fabrication of two types of non-polarizing binary-structured onedimensional (1D) GMRF at normal incidence. A single layer binary-profile TiO 2 resonant grating (grating-I) is fabricated by Atomic layer deposition (ALD), electron beam lithography (EBL) and reactive ion etching (RIE), which demonstrates almost perfect non-polarizing filtering effect with 1D grating under normal incidence. A double layer rectangular-profile polycarbonate-TiO 2 1D GMR grating (grating-II) is fabricated by nanoimprint lithography (NIL) and ALD which also shows good non-polarizing property and the potential of cost-effective mass fabrication of such functional devices.

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Polarization independence of a one-dimensional grating in conical mounting

Cited by 56 publications

References 22 publications

Nonpolarizing guided-mode resonance filter

Nonpolarizing guided-mode resonance filter

Vectorial model for guided-mode resonance gratings

Nonpolarizing single layer inorganic and double layer organic-inorganic one-dimensional guided mode resonance filters

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