Volume holographic phase-retardation elements

Kim, Tae Jin; Campbell, Gene; Kostuk, Raymond K.

doi:10.1364/ol.20.002030

Cited by 11 publications

(4 citation statements)

References 7 publications

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“…This theory is valid for grating periods that are less than one tenth of the optical wavelength. The achievement of form birefringence in volume holographic gratings has been experimentally verified by Kim et al 6 and Yang et al 7,8 with photopolymers as holographic media. All these gratings have been characterized by measuring the retardation at normal incidence.…”

Section: Introductionmentioning

confidence: 88%

“…The EMT, valid when F Ͼ 10, is described by Campbell et al in Ref. 5,6. The principal result of this theory is that the sinusoidally modulated volume grating is equivalent to a uniaxial medium with the optic axis parallel to the grating vector K and a bire-fringence ͑n e Ϫ n or ͒ directly proportional to the index modulation n 1 of the grating 6…”

Section: Effective Medium Theorymentioning

confidence: 99%

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Volume index gratings in the intermediate and form-birefringence regimes

et al. 2002

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We present a study of volume index gratings operating in the form-birefringence regime and what we call the intermediate regime, defined as the regime between form birefringence and the onset of diffraction. The operating regime is characterized by the ratio between the measurement wavelength and the grating period: form birefringence regime below 10, diffraction around 3, and intermediate regime between 10 and 3. The behavior of the gratings in a given regime is studied by plotting the induced retardation as a function of the incidence angle. The shape of the curve fully characterizes the regime. We report on theoretical calculations of retardation by use of a rigorous theory and its experimental validation by measuring retardation of recorded gratings in photopolymers.

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Section: Introductionmentioning

confidence: 88%

Section: Effective Medium Theorymentioning

confidence: 99%

Volume index gratings in the intermediate and form-birefringence regimes

et al. 2002

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“…(6) It is clear from Eqs. (3)(4)(5)(6) that, generally speaking, ER, I I and phases Os4Op, i.e., amplitude and phase DA take place.…”

Section: The Zeroth Order Diffractionmentioning

confidence: 96%

<title>Theoretical and experimental studies of light diffraction anisotropy by holograms in a-As-S-Se films</title>

Ozols

Reinfelde

2003

SPIE Proceedings

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Diffraction anisotropy (DA) defined as the polarization dependence of the amplitudes (amplitude DA) and phases (phase DA) of the diffracted light waves is studied in the case of a sinusoidal transmission amplitude-phase grating both theoretically and experimentally. Theoretical analysis was mainly based on the Kogelnik's coupled wave theory (KCWT) and also on the conclusions of rigorous coupled wave theory (RCWT) and effective medium theory (EMT). Experimentally gratings with 0.42 ptm period in a-As-S-Se films at 632.8 nm were studied. KCWT predictions were compared with those of RCWT and EMT as well as with the experimental DA results. It is found that KCWT properly describes the first order amplitude DA, and more roughly also the zeroth order amplitude DA. The zeroth order phase DA is wrongly described by KCWT. It is also found that polarization dependent Fresnel reflection effect is much stronger than DA therefore p-polarized hologram recording is preferable.

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“…Furthermore, such thin-film devices can be designed to act as polarization-sensitive spatial light modulators, in which the local optical properties depend on the transverse coordinate. For example, there is a substantial body of work utilizing dielectric gratings (sometimes called form-birefringent structures in this context) to provide wave plate functionality [9][10][11][12][13]. These structures, if based on relatively low-refractive-index photoresists and glasses, often require high-aspect-ratio structures surrounded by air, which makes fabrication challenging.…”

mentioning

confidence: 99%

Optical wave retarder based on metal-nanostripe metamaterial

et al. 2019

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Wave retarders, including quarter-and half-wave plates, are used in many optical systems for polarization conversion. They are usually realized with anisotropic crystalline materials. However, much thinner and possibly also less expensive wave plates can be made of micro-and nanostructures. We present a new way to create thin-film optical retarders based on a highly birefringent metamaterial. The wave plate is capable of low-loss, broadband operation, which we verify both numerically and experimentally. Owing to the remarkable simplicity of our design, the wave plates operating on the proposed principle can meet the requirements of largescale production and find widespread application in optics and photonics.

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Volume holographic phase-retardation elements

Cited by 11 publications

References 7 publications

Volume index gratings in the intermediate and form-birefringence regimes

Volume index gratings in the intermediate and form-birefringence regimes

<title>Theoretical and experimental studies of light diffraction anisotropy by holograms in a-As-S-Se films</title>

Optical wave retarder based on metal-nanostripe metamaterial

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