Resonators induced transparency and optical switching assisted by optofluidic pump system

A tunable plasmonic induced transparency (PIT)-based light switching is proposed and investigated. The proposed structure consists of a bus waveguide, two nanoresonators and an optofluidic pump system for actively tuning the system’s transmission. By using the finite difference time domain method, it is found that the interferences between the dark and bright mode resonators can be controlled by manipulating the fluid filled in the resonator, leading to an actively tunable plasmonic switch, the transmittance can be flexibly tuned from near unity to zero. The structure in our paper has the following advantages, such as ultracompact size and easy fabrication. Our study will provide a possibility for designing the ultrafast devices in highly integrated optical circuits.

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The Tunable Optofluidics Waveguide Design Based on the Novel Dual Side-Coupled Cavities Plasmonic Structure

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.609-610.648 ◽

2014 ◽

Vol 609-610 ◽

pp. 648-653 ◽

Cited By ~ 1

Author(s):

Teng Long Li ◽

Rui Sheng Liang ◽

Wen Hao Mo ◽

Liang Bing Luo ◽

Ming Jia He ◽

...

Keyword(s):

Refractive Index ◽

Liquid Volume ◽

The Novel ◽

Pump System ◽

Integrated Optical ◽

Wavelength Filter ◽

Waveguide Design ◽

Optical Circuits ◽

Difference Time ◽

Coupled Cavity Waveguide

We present a tunable wavelength filter in plasmonic metaldielectricmetal (MIM) side-coupled-cavity waveguide with optofluidics pump system proposed to realize tunable mechanism. The peak wavelength can shift by manipulating the length of liquid column and the effective refractive index. The finite difference time domain method is used in the numerically simulated experiment and the resonant wavelengths from 1000 to around 1800nm had been analyzed. The results reveal that the resonant wavelengths are proportional to the liquid volume length and refractive index of liquid in the cavity. This waveguide filter can be used in integrated optical circuits.

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Analysis of Reflective Self-Organized Lightwave Network (R-SOLNET) for Z-Connections in 3-D Optical Circuits by the Finite-Difference Time-Domain Method

IEEE Journal of Selected Topics in Quantum Electronics ◽

10.1109/jstqe.2010.2084073 ◽

2011 ◽

Vol 17 (3) ◽

pp. 566-570 ◽

Cited By ~ 8

Author(s):

Tetsuzo Yoshimura ◽

Kazuyuki Wakabayashi ◽

Shigeru Ono

Keyword(s):

Finite Difference ◽

Time Domain ◽

Finite Difference Time Domain ◽

Time Domain Method ◽

Self Organized ◽

Domain Method ◽

Optical Circuits ◽

Difference Time

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Pulse nonlinear optical switching in plasmonic structures

EPJ Web of Conferences ◽

10.1051/epjconf/202023811014 ◽

2020 ◽

Vol 238 ◽

pp. 11014

Author(s):

José R. Salgueiro ◽

Albert Ferrando

Keyword(s):

Time Domain ◽

Finite Difference Time Domain ◽

Optical Switching ◽

Nonlinear Optical ◽

Optical Signal ◽

Switching Operation ◽

Plasmonic Structures ◽

All Optical ◽

Difference Time ◽

Interesting System

We study switching operation in a plasmonic coupler using fs-pulses. Simulations using the finite difference time-domain method (FDTD) are carried out showing how the output changes as the pulse energy increases raising from zero to a maximum. Both cases of neglecting and realistic losses are considered in order to compare. The work is intended to explore the use of pulses for all-optical signal processing in a potentially interesting system for integrated photonics at the nanometric scale.

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