Diffractive-optic polarization-sensing element for magneto-optic storage heads

Kostuk, Raymond K.; Kim, T J; Campbell, Gene; Han, Chien Wei

doi:10.1364/ol.19.001257

Cited by 20 publications

(4 citation statements)

References 3 publications

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“…Some application examples include free-space optical switching networks, [1][2][3] readwrite magneto-optical data storage systems, 4,5 and polarization-based imaging systems. 6,7 In these systems, a polarizing beam splitter (PBS) is an essential element for separating two orthogonally polarized light beams.…”

Section: Introductionmentioning

confidence: 99%

Design, fabrication, and characterization of form-birefringent multilayer polarizing beam splitter

et al. 1997

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Polarizing beam splitters that use the anisotropic spectral reflectivity (ASR) characteristic of high-spatialfrequency multilayer binary gratings have been designed, fabricated, and characterized. Using the ASR effect with rigorous coupled-wave analysis, we design an optical element that is transparent for TM polarization and reflective for TE polarization at an arbitrary incidence angle and operational wavelength. The experiments with the fabricated element demonstrate a high efficiency (Ͼ97%), with polarization extinction ratios higher than 220:1 at a wavelength of 1.523 m over a 20°angular bandwidth by means of the ASR characteristics of the device. These ASR devices combine many useful characteristics, such as compactness, low insertion loss, high efficiency, and broad angular and spectral bandwidth operations.

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Section: Introductionmentioning

confidence: 99%

Design, fabrication, and characterization of form-birefringent multilayer polarizing beam splitter

et al. 1997

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“…The diffraction grating has different efficiency according to incident polarization state and the index modulation amplitude. The diffraction efficiency relating to input polarization is expressed by the Kogelnik's wave theory [9,10].…”

Section: Theorymentioning

confidence: 99%

Optimization of Diffraction Efficiency and Polarization Dependence Loss in Photopolymer Grating for Use in Multichip Module

Sahu¹,

Achary²,

Tripathy³

2012

JMP

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We in this paper propose a model to increase the diffraction efficiency of a holographic grating at 1550 nm for multiplexing application. To use such a grating, polarization dependence loss is introduced analytically and then optimized for its minimum value A configuration of holographic grating is proposed based on both maximum diffraction efficiency and minimum polarization dependence loss. The proposed grating is expected to find importance in optoelectronic multichip module

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“…In the past decades, polarization selection has attracted researchers' great interest since its applications in liquid crystal display [1,2], read-write magneto-optical data storage [3], Q-switched lasing [4], and chiral molecule detection [5]. A typical physical mechanism to realize polarization selection is the Brewster effect [6].…”

Section: Introductionmentioning

confidence: 99%

Frequency-tunable wide-angle polarization selection with a graphene-based anisotropic epsilon-near-zero metamaterial

Wu¹,

Liu²,

Wu³

et al. 2022

J. Opt.

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In this paper, we achieve frequency-tunable wide-angle polarization selection based on an anisotropic epsilon-near-zero (AENZ) metamaterial mimicked by a subwavelength graphene/SiO2 multilayer. The physical mechanism of wide-angle polarization selection can be explained by the analysis of the iso-frequency curve (IFC). Under transverse electric polarization, only the incident lights which are close to normal incidence can transmit through the designed multilayer since the IFC of the AENZ metamaterial is an extremely small circle. However, under transverse magnetic polarization, all the incident lights can transmit through the designed multilayer since the IFC of the AENZ metamaterial is a flat ellipse. Therefore, polarization selection can work in a broad angular width. By changing the gate voltage applying to the graphene, the operating frequency of polarization selection can be flexibly tuned. The optimal operating angular width of high-performance polarization selection where the polarization selection ratio is larger than 102 reaches 54.9 degrees. This frequency-tunable wide-angle polarization selector would possess potential applications in liquid crystal display, read-write magneto-optical data storage, Q-switched lasing, and chiral molecule detection.

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Diffractive-optic polarization-sensing element for magneto-optic storage heads

Cited by 20 publications

References 3 publications

Design, fabrication, and characterization of form-birefringent multilayer polarizing beam splitter

Design, fabrication, and characterization of form-birefringent multilayer polarizing beam splitter

Optimization of Diffraction Efficiency and Polarization Dependence Loss in Photopolymer Grating for Use in Multichip Module

Frequency-tunable wide-angle polarization selection with a graphene-based anisotropic epsilon-near-zero metamaterial

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