Novel Plasmonic Data Storage Based on Nematic Liquid Crystal Layers

Elrabiaey, Mahmoud A.; Areed, Nihal F. F.; Obayya, S. S. A.

doi:10.1109/jlt.2016.2582838

Cited by 23 publications

(7 citation statements)

References 25 publications

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“…A strong field can readjust an NLC rather rapidly, within 100 ns. Additionally, doping the NLC layer by isotropic layers like zinc oxide nano-particles may be useful for decreasing the amplitude of the required voltage (El-Rabiaey et al 2016;Eskalen et al 2015). It is also worth noting that the speed of the NLC switching can be increased electrically by modifying the order parameter (EMOP) using ultra-short voltage pulses.…”

Section: Design Considerationsmentioning

confidence: 99%

Efficient tunable plasmonic mode converters infiltrated with nematic liquid crystal layers

et al. 2021

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This paper presents two efficient tunable plasmonic mode converters in the infrared regime. The proposed configurations consist of silver layer with etched rectangular holes as metal insulator metal (MIM) waveguides with central cavities. The holes are infiltrated by nematic liquid crystal (NLC) material to increase the transmission through the suggested designs. Additionally, the NLC is used to have tunable operation where the modes at the output port can be controlled. The simulations are carried out using full vectorial finite element (FEM) method. The first design has a single output port which converts the TM mode into the TEM mode with high transmission conversion efficiency of 70%. Further, the second structure allows the generation of the two plasmonic modes simultaneously in two output waveguides. During the biased state, the s-mode transmission conversion efficiency reaches 50% while the transmission of a-mode at the unbiased state is equal to 49%. It is expected that the proposed tunable mode converters will play an important role in the development of the plasmonic-photonic circuits.

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Section: Design Considerationsmentioning

confidence: 99%

Efficient tunable plasmonic mode converters infiltrated with nematic liquid crystal layers

et al. 2021

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“…This would enable more feature sizes than the conventional lasers [ 22 , 23 ]. They could also be used to package additional information onto storage media such as hard disks or DVDs [ 24 , 25 ]. The mid-IR spectroscopy offers a principal means for biological structure analysis as well as nonintrusive measurements.…”

Section: Advances In Photonicsmentioning

confidence: 99%

Introduction to Photonics: Principles and the Most Recent Applications of Microstructures

et al. 2018

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Light has found applications in data transmission, such as optical fibers and waveguides and in optoelectronics. It consists of a series of electromagnetic waves, with particle behavior. Photonics involves the proper use of light as a tool for the benefit of humans. It is derived from the root word “photon”, which connotes the tiniest entity of light analogous to an electron in electricity. Photonics have a broad range of scientific and technological applications that are practically limitless and include medical diagnostics, organic synthesis, communications, as well as fusion energy. This will enhance the quality of life in many areas such as communications and information technology, advanced manufacturing, defense, health, medicine, and energy. The signal transmission methods used in wireless photonic systems are digital baseband and RoF (Radio-over-Fiber) optical communication. Microwave photonics is considered to be one of the emerging research fields. The mid infrared (mid-IR) spectroscopy offers a principal means for biological structure analysis as well as nonintrusive measurements. There is a lower loss in the propagations involving waveguides. Waveguides have simple structures and are cost-efficient in comparison with optical fibers. These are important components due to their compactness, low profile, and many advantages over conventional metallic waveguides. Among the waveguides, optofluidic waveguides have been found to provide a very powerful foundation for building optofluidic sensors. These can be used to fabricate the biosensors based on fluorescence. In an optical fiber, the evanescent field excitation is employed to sense the environmental refractive index changes. Optical fibers as waveguides can be used as sensors to measure strain, temperature, pressure, displacements, vibrations, and other quantities by modifying a fiber. For some application areas, however, fiber-optic sensors are increasingly recognized as a technology with very interesting possibilities. In this review, we present the most common and recent applications of the optical fiber-based sensors. These kinds of sensors can be fabricated by a modification of the waveguide structures to enhance the evanescent field; therefore, direct interactions of the measurand with electromagnetic waves can be performed. In this research, the most recent applications of photonics components are studied and discussed.

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“…Information storage technology has always been under development, starting from the hard disk drive to Blu-ray, nanophotonic optical storage [35] and recently the pasmonic optical storage [36]. Recently, optical memory represents an ideal solution for storing large quantities of data very inexpensively.…”

Section: Optical Memory Based On Photonic Lc Layersmentioning

confidence: 99%