The generation of lossy mode resonances (LMRs) with a setup based on lateral incidence of light in coverslips is a simple platform that can be used for sensing. Here the versatility of this platform is proved by studying the deposition of different coating materials. The devices were characterized with both SEM and AFM microscopy, as well as ellipsometry, which allowed obtaining the main parameters of the coatings (thickness, refractive index and extinction coefficient) and relating them with the different sensitivities to refractive index attained with each material. In this way it was possible to confirm and complete the basic rules observed with lossy mode resonance based optical fiber sensors towards the design of simpler and more compact applications in domains such as chemical sensors or biosensors.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OE.28.000288 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Leaky mode resonance (LMR) and lossy mode resonance (LMR) refer to two different surface waves but are easily confused. Herein, we comprehensively investigated the excitation mechanism and sensing performance of both LMR and LMR with the same prism-film-surrounding platform based on the rigorous transfer matrix method. Both non-absorbing film waveguides, absorbing film waveguides, and gold-cladding film waveguides were analyzed.
View Article and Find Full Text PDFWe propose a metal-dielectric hybrid structure to enhance the quality () factor by strong coupling between the resonant guided mode (RGM) and higher-order Tamm plasmon polariton (TPP). Meanwhile, we found that symmetry-protected bound states in the continuum (SP-BIC) can be achieved by actively adjusting the angle of the incident light, thus increasing the degrees of freedom for modulating the -factor. The simulation results indicated that both the central wavelengths and -factors of resonant modes can be modulated and optimized by modifying relevant structural parameters.
View Article and Find Full Text PDFState-of-the-Art Trends in Data Compression: COMPROMISE Case Study.
Entropy (Basel)
November 2024
Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroška cesta 46, SI-2000 Maribor, Slovenia.
After a boom that coincided with the advent of the internet, digital cameras, digital video and audio storage and playback devices, the research on data compression has rested on its laurels for a quarter of a century. Domain-dependent lossy algorithms of the time, such as JPEG, AVC, MP3 and others, achieved remarkable compression ratios and encoding and decoding speeds with acceptable data quality, which has kept them in common use to this day. However, recent computing paradigms such as cloud computing, edge computing, the Internet of Things (IoT), and digital preservation have gradually posed new challenges, and, as a consequence, development trends in data compression are focusing on concepts that were not previously in the spotlight.
View Article and Find Full Text PDFA High-Sensitivity Fiber Optic Soil Moisture Sensor Based on D-Shaped Fiber and Tin Oxide Thin Film Coatings.
Sensors (Basel)
November 2024
Mechanical and Systems Research Laboratory, Industrial Technology Research Institute, Hsinchu 310401, Taiwan.
We present a high-sensitivity fiber optic soil moisture sensor based on side-polished multimode fibers and lossy mode resonance (LMR). The multimode fibers (MMFs), after side-polishing to form a D-shaped structure, are coated with a single-layer SnO thin film by electron beam evaporation with ion-assisted deposition technology. The LMR effect can be obtained when the refractive index of the thin film is positive and greater than its extinction coefficient and the real part of the external medium permittivity.
View Article and Find Full Text PDFDual-resonance optical fiber lossy mode resonance immunoprobe for serum PSA detection.
Biosens Bioelectron
March 2025
School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, 300072, China.
Biomarker detection has emerged as an essential complementary approach for early-stage screening of tumors. Conventional methods are constrained by bulky systems, cumbersome operation steps, and low detection accuracy. Here, we demonstrate a dual-resonance optimally configured lossy mode resonance (LMR) immunoprobe for detecting prostate-specific antigen (PSA), a biomarker for prostate cancer (PCa).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!