Parametric Analysis of Silicon Nanowire Optical Rectangular Waveguide Sensor

Singh, Ritu Raj; Malviya, Nishit; Priye, Vishnu

doi:10.1109/lpt.2016.2624501

Cited by 29 publications

(9 citation statements)

References 16 publications

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“…Consequently, the remaining bunch of silicon nanowires works as a waveguide, which seems to be similar with silicon bulk rectangular waveguide only in context of mode envelope pattern. These silicon nanowires are in vertical rod-shaped sub-wavelength structure, and the resultant waveguide is known as 'silicon nanowire optical rectangular waveguide' (SNORW) [26][27][28][29]. In SNORW, nanowire rods having high refractive index are vertically aligned on the surface of substrate material in an arrayed pattern.…”

Section: Snorw Structurementioning

confidence: 99%

“…Spacing between nanowires is found to be one of the crucial parameters for shadowing effect. Optical field intensity and confinement factor are found to be quite high inside nano-slots of SNORW as compared to slot optical waveguide [26][27][28][29][30]. Thus, dispersion engineering is required to utilize SNORW as sub-wavelength structure in linear and nonlinear optical devices.…”

Section: Introductionmentioning

confidence: 99%

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Dispersion tailoring of silicon nanowire optical rectangular waveguide (SNORW)

Singh

2020

SN Appl. Sci.

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Dispersion analysis on silicon nanowire optical rectangular waveguide (SNORW) has been presented in this paper by guiding light inside low refractive index region. Dispersion engineering is an essential study to utilize any photonic integrated circuit-based waveguide in linear and nonlinear optical devices. This paper exhibits distinctive dispersion characteristics recognized in the wavelengths of S, C and L bands by tailoring physical parameters of SNORW. Modal investigation and numerical analysis have been carried out by finite element method (FEM), which shows that SNORW configuration enables the flat and low negative dispersion behavior. This paper also demonstrates the utilization of cladding materials and structural parameters of SNORW to tune the magnitude and behavior of dispersion for flat dispersion profile.

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Section: Snorw Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dispersion tailoring of silicon nanowire optical rectangular waveguide (SNORW)

Singh

2020

SN Appl. Sci.

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“…So the waveguide sensitivity is defined as the change in effective refractive index of waveguide cross-section to the change in refractive index profile of the material to be sensed. Waveguide sensitivity for SNORW can be given as [25,30,34]…”

Section: G =mentioning

confidence: 99%

“…So the waveguide sensitivity is defined as the change in effective refractive index of waveguide cross‐section to the change in refractive index profile of the material to be sensed. Waveguide sensitivity for SNORW can be given as [25, 30, 34]

S = \frac{normal∂ n_{normaleff}}{normal∂ n_{c}}

where

normal∂ n_{normaleff}

is the change in effective refractive index of X – Y cross‐section in Fig. 1 and

normal∂ n_{c}

is the change in refractive index of cladding.…”

Section: Film‐loaded Snorw As Sensing Elementmentioning

confidence: 99%

“…Nanowires‐based photonic devices are smaller in dimension with excellent operational performance [25]. Recently, nanowire‐based waveguide was reported, in which vertical array of silicon nanowires were used to transmit the optical signal from one end to another using silicon on insulator platform [25, 26]. Silicon nanowire waveguide has high waveguide surface to waveguide volume ratio, and is used as a gas sensing devices [25].…”

Section: Introductionmentioning

confidence: 99%

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Numerical analysis of film‐loaded silicon nanowire optical rectangular waveguide: an effective optical sensing

Singh

Priye

2018

Micro & Nano Letters

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Subwavelength waveguide using silicon nanowires is investigated for its compatibility with silicon-on-insulator platform. A layer of silicon film over SiO 2 substrate is employed to construct silicon nanowire waveguides that complies with standard 220 nm silicon height technology. The proposed structure is further investigated for its utility as an optical sensing element in photonic integrated circuits. Film-loaded silicon nanowire optical rectangular waveguide (SNORW) allows light to be guided inside low refractive indexed gapping region with optimised dimension. Fully numerical analysis is performed using finite-element method as evidence to support the guiding phenomena of this waveguide. Eventually, confinement factor and waveguide sensitivity is found to be linear with measurand refractive index. As a result, the purpose of this SNORW leads to an effective sensing in the new era of photonics.

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High Sensitive Surface Refractive Index Sensor Using Multiple Vertical Silicon Nanowire-Based PIC Waveguide

Singh

Priye

2022

Lecture Notes in Electrical Engineering

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Parametric Analysis of Silicon Nanowire Optical Rectangular Waveguide Sensor

Cited by 29 publications

References 16 publications

Dispersion tailoring of silicon nanowire optical rectangular waveguide (SNORW)

Dispersion tailoring of silicon nanowire optical rectangular waveguide (SNORW)

Numerical analysis of film‐loaded silicon nanowire optical rectangular waveguide: an effective optical sensing

High Sensitive Surface Refractive Index Sensor Using Multiple Vertical Silicon Nanowire-Based PIC Waveguide

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