scholarly journals Numerical analysis of planar multimode optical sensor with active nanolayer

2020 ◽  
Vol 50 (3) ◽  
Author(s):  
Marek Błahut
Keyword(s):  
Refractive Index ◽  
Optical Sensor ◽  
Single Mode ◽  
High Refractive Index ◽  
Field Analysis ◽  
Multimode Waveguide ◽  
Sensor Layer ◽  
Active Sensor ◽  
Mode Field ◽  
Numerical Studies

In the paper, numerical studies of the model of an optical sensor, based on interference of modes in a planar one-dimensional step-index configuration, are presented. Calculations are performed using the method of mode field analysis. The structure consists of the single-mode input waveguide, the multimode waveguide that guides only a few modes and the single-mode output waveguide. The structure is covered by a nanometer active sensor layer of a high refractive index, which changes its optical properties in contact with the measured external surrounding. The refractive index variation of an active sensor layer affects the modal properties of the multimode waveguide and the output optical field distribution. By the proper selection of the active layer, the considered configuration can be used for gas detection.

scholarly journals Model of the broadband interferometric optical biosensor in a planar configuration

2020 ◽  
Vol 12 (2) ◽  
pp. 28
Author(s):  
Marek Blahut
Keyword(s):  
Refractive Index ◽  
Optical Sensor ◽  
High Performance ◽  
Low Cost ◽  
Complex Refractive Index ◽  
Broad Band ◽  
Single Mode ◽  
Optical Biosensor ◽  
Multimode Waveguide ◽  
Planar Configuration

The paper presents numerical studies of the model of an optical sensor based on interference of modes in planar one-dimensional step-index configuration, excited by a broadband light source from a selected spectral range. The refractive index variation of measured external surrounding affects the modal properties of multimode waveguide and the spectral field distribution at the output of the structure. The optical system described is designed to the analysis of biological substances. Full Text: PDF ReferencesM. Blahut, "Optical sensor in planar configuration based on multimode interference" Proc. SPIE, 10455, (2017). CrossRef K. Misiakos, et al, "Broad-band Mach-Zehnder interferometers as high performance refractive index sensors: Theory and monolithic implementation", Opt. Express, 22, 8856, (2014). CrossRef K. Gut, "Study of a Broadband Difference Interferometer Based on Low-Cost Polymer Slab Waveguides", Nanomaterials, 9, 729 (2019). CrossRef M. Nordstrom, et al, "Single-Mode Waveguides With SU-8 Polymer Core and Cladding for MOEMS Applications", J. Light. Techn., 25, 1284, (2007). CrossRef D. Segelstein, "The complex refractive index of water", M.S. Thesis, University of Missouri, (1981). DirectLink https://www.yokogawa.com/pl/solutions/products-platforms/ DirectLink

scholarly journals Single-mode optical waveguides on native high-refractive-index substrates

APL Photonics ◽  
2016 ◽  
Vol 1 (7) ◽  
pp. 071302 ◽  
Author(s):  
Richard R. Grote ◽  
Lee C. Bassett
Keyword(s):  
Refractive Index ◽  
Optical Waveguides ◽  
Single Mode ◽  
High Refractive Index

Electromanetic Field Analysis of Slotwaveguide with High Refractive Index Difference

2013 ◽  
Vol 42 (12) ◽  
pp. 1464-1472
Author(s):  
李瑭 LI Tang ◽  
王东旭 WANG Dongxu ◽  
钱如一 QIAN Ruyi ◽  
程思齐 CHENG Siqi ◽  
顾锐锐 GU Ruirui ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Field Analysis ◽  
Slot Waveguide ◽  
Refractive Index Difference

scholarly journals Single Mode High Refractive Index Optical Fibres

2008 ◽  
Vol 114 (6A) ◽  
pp. A-63-A-68 ◽  
Author(s):  
D. Dorosz ◽  
K. Barczak ◽  
T. Pustelny ◽  
J. Dorosz
Keyword(s):  
Refractive Index ◽  
Single Mode ◽  
High Refractive Index ◽  
Optical Fibres

Single mode field analysis and adjustment on polymer waveguides understanding the reasons for coupling losses

2008 ◽  
Author(s):  
Uwe Hollenbach ◽  
Hans-Jürgen Boehm ◽  
Jürgen Mohr ◽  
K. Pfeiffer
Keyword(s):  
Single Mode ◽  
Field Analysis ◽  
Polymer Waveguides ◽  
Mode Field

scholarly journals Enhancing the Sensitivity of SMS Fiber Sensors by the Use of High Refractive Index Coatings

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 1106
Author(s):  
Thulio Vette ◽  
Gustavo Burns ◽  
Renato Bellini ◽  
Sergio S. Camargo Jr. ◽  
Carolina V. S. Borges ◽  
...  
Keyword(s):  
Refractive Index ◽  
Carbon Coating ◽  
External Medium ◽  
Single Mode ◽  
High Refractive Index ◽  
Diamond Like Carbon ◽  
Fiber Sensors

This paper presents a study on the behavior of single-mode/multimode/single-mode sensors with diamond-like carbon coating of high refractive index. Spectra and response for different values of the external medium refractive index are recorded and analyzed.

Accelerated Discovery of High-Refractive-Index Polyimides via First-Principles Molecular Modeling, Virtual High-Throughput Screening, and Data Mining

2019 ◽  
Author(s):  
Mohammad Atif Faiz Afzal ◽  
Mojtaba Haghighatlari ◽  
Sai Prasad Ganesh ◽  
Chong Cheng ◽  
Johannes Hachmann
Keyword(s):  
Data Mining ◽  
Refractive Index ◽  
High Throughput ◽  
First Principles ◽  
High Throughput Screening ◽  
Large Scale ◽  
Computational Study ◽  
High Refractive Index ◽  
Structural Features ◽  
Learning Program

<div>We present a high-throughput computational study to identify novel polyimides (PIs) with exceptional refractive index (RI) values for use as optic or optoelectronic materials. Our study utilizes an RI prediction protocol based on a combination of first-principles and data modeling developed in previous work, which we employ on a large-scale PI candidate library generated with the ChemLG code. We deploy the virtual screening software ChemHTPS to automate the assessment of this extensive pool of PI structures in order to determine the performance potential of each candidate. This rapid and efficient approach yields a number of highly promising leads compounds. Using the data mining and machine learning program package ChemML, we analyze the top candidates with respect to prevalent structural features and feature combinations that distinguish them from less promising ones. In particular, we explore the utility of various strategies that introduce highly polarizable moieties into the PI backbone to increase its RI yield. The derived insights provide a foundation for rational and targeted design that goes beyond traditional trial-and-error searches.</div>

Preparation and Characterization of Polyvinylidene Fluoride/ZrO2-TiO2 Optical Film with Wide Band Gap and High Refractive Index

2013 ◽  
Vol 28 (6) ◽  
pp. 671-676 ◽  
Author(s):  
Yu-Qing ZHANG ◽  
Li-Li ZHAO ◽  
Shi-Long XU ◽  
Chao ZHANG ◽  
Xiao-Ying CHEN ◽  
...  
Keyword(s):  
Refractive Index ◽  
Band Gap ◽  
Polyvinylidene Fluoride ◽  
Wide Band ◽  
High Refractive Index ◽  
Wide Band Gap ◽  
Optical Film
Sign in / Sign up

Export Citation Format

Share Document