Optimizing holographic data storage using a fractional Fourier transform

Pégard, Nicolas C.; Fleischer, Jason W.

doi:10.1364/ol.36.002551

Cited by 28 publications

(14 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, holography-based techniques for controlling the amplitude and phase of free-space beams have been used to achieve surface plasmon holographic displays3435, beam shaping36, data storage37, digital holographic microscopy3839, optical trapping and micromanipulation in atom traps or diffractive laser tweezers4041. Two-dimensional (2D) holography, or projection, has also been experimentally demonstrated using metamaterials42434445464748.…”

mentioning

confidence: 99%

Three-dimensional optical holography using a plasmonic metasurface

et al. 2013

View full text Add to dashboard Cite

Benefitting from the flexibility in engineering their optical response, metamaterials have been used to achieve control over the propagation of light to an unprecedented level, leading to highly unconventional and versatile optical functionalities compared with their natural counterparts. Recently, the emerging field of metasurfaces, which consist of a monolayer of photonic artificial atoms, has offered attractive functionalities for shaping wave fronts of light by introducing an abrupt interfacial phase discontinuity. Here we realize three-dimensional holography by using metasurfaces made of subwavelength metallic nanorods with spatially varying orientations. The phase discontinuity takes place when the helicity of incident circularly polarized light is reversed. As the phase can be continuously controlled in each subwavelength unit cell by the rod orientation, metasurfaces represent a new route towards high-resolution on-axis three-dimensional holograms with a wide field of view. In addition, the undesired effect of multiple diffraction orders usually accompanying holography is eliminated.

show abstract

mentioning

confidence: 99%

Three-dimensional optical holography using a plasmonic metasurface

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Besides that, shaping the phase distribution of a light is very important for reconstructing 3D images, a technique that has been known as holography for several decades. Holographic techniques for controlling the amplitude and phase of light have been used to achieve beam shaping [61], data storage [62], SPP holographic displays [63], and optical trapping [64]. The usual way to generate the hologram is to calculate the phase information of the wave at the hologram interface and encoding the phase information into surface relief structures or spatial light modulators, which is referred to as computer-generated holography (CGH).…”

Section: Applications and Perspectivesmentioning

confidence: 99%

Tailoring optical complex fields with nano-metallic surfaces

Rui¹,

Zhan

2015

Nanophotonics

View full text Add to dashboard Cite

Abstract:Recently there is an increasing interest in complex optical fields with spatially inhomogeneous state of polarizations and optical singularities. Novel effects and phenomena have been predicted and observed for light beams with these unconventional states. Nanostructured metallic thin film offers unique opportunities to generate, manipulate and detect these novel fields. Strong interactions between nano-metallic surfaces and complex optical fields enable the development of highly compact and versatile functional devices and systems. In this review, we first briefly summarize the recent developments in complex optical fields. Various nano-metallic surface designs that can produce and manipulate complex optical fields with tailored characteristics in the optical far field will be presented. Nano-metallic surfaces are also proven to be very effective for receiving and detection of complex optical fields in the near field. Advances made in this nascent field may enable the design of novel photonic devices and systems for a variety of applications such as quantum optical information processing and integrated photonic circuits.

show abstract

“…Metasurface can realize asymmetric light transmission, anti-reflection, enhanced transmission, magnetic mirror, EIT-like effect, etc. [9][10][11]. By controlling the phase of electromagnetic wave, the metasurface can realize the functions of beam deflection, hyperlens, hyperholography, vortex light generation, coding, stealth and illusion [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Manipulation of Terahertz Wave Based on Three-Layer Transmissive Pancharatnam-Berry Phase Metasurface

Jing

Tian

et al. 2020

IEEE Access

View full text Add to dashboard Cite

In order to improve the transmitted efficiency of metasurfaces, the three-layer unit cell structure with coupling characteristics between layers was proposed. Using these Pancharatnam-Berry phase element particles with three-layer structure, we constructed encoded metasurfaces with different sequences to control the transmitted scattered waves. However, the manipulation of continuous transmission angle requires the continuous change of encoding metasurface period. Since the size of encoding particles in the coded metasurfaces cannot be designed to be infinitesimally small, it is impossible to obtain the continuously changing period of coded metasurfaces. In order to obtain the continuous manipulation of transmission scattering angles, we introduced the principle of Fourier convolution operation in digital signal processing on encoding metasurface sequences. By performing the addition and subtraction operation between two different encoding metasurface sequences, a new encoding metasurface sequence can be obtained with different scattering angle. The transmission scattering angles can be obtained continuously, and the terahertz wave can be manipulated freely. Moreover, by using the proposed threelayer highly efficient Pancharatnam-Berry phase encoding meta-atoms, these coded particles with different rotation angles can be precisely arranged to build the generators of the orbital angular momentum beam with different topological charges. INDEX TERMS Metamaterial, Terahertz wave, Transmission.

show abstract

Optimizing holographic data storage using a fractional Fourier transform

Cited by 28 publications

References 17 publications

Three-dimensional optical holography using a plasmonic metasurface

Three-dimensional optical holography using a plasmonic metasurface

Tailoring optical complex fields with nano-metallic surfaces

Manipulation of Terahertz Wave Based on Three-Layer Transmissive Pancharatnam-Berry Phase Metasurface

Contact Info

Product

Resources

About