Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

684
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
684
Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

987
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
987

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Trends in vibrational spectroscopy on optical waveguides.

Analytical and bioanalytical chemistry·2026
Same author

Efficient phase identification in coherent beam combination using interpretable deep learning.

Optics express·2026
Same author

Coherent modal engineering: a perspective on fiber splice optimization.

Optics express·2026
Same author

Exploring five types of beam shaping using tiled-aperture coherent beam combining.

Communications engineering·2025
Same author

High-efficiency multi-spot beam generation with an all-fiber SMF-SCF structure.

Optics express·2025
Same author

Selective laser cleaning of microbeads using deep learning.

Scientific reports·2025
Same journal

Denoising algorithm of Φ-OTDR systems based on adaptive fractional wavelet transform denoising.

Optics express·2026
Same journal

Millisecond photon-to-photon latency and high-speed volumetric projection system for optogenetics.

Optics express·2026
Same journal

Polarization-encoded coaxial structured light for high-precision 3D surface profilometry.

Optics express·2026
Same journal

Discrete freeform optical design based on collaborative optimization of point cloud and local normals.

Optics express·2026
Same journal

Ultrafast ghost imaging with 25 GHz speckle switching and wavelength-division multiplexing.

Optics express·2026
Same journal

Atomic vapor cells fabricated by femtosecond laser welding of standard-optical-quality glass.

Optics express·2026
See all related articles

Related Experiment Video

Updated: Nov 23, 2025

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
07:28

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

Published on: August 30, 2012

11.0K

Optimized design for grating-coupled waveguide-enhanced Raman spectroscopy.

Mohamed A Ettabib, Zhen Liu, Michalis N Zervas

    Optics Express
    |December 31, 2020
    PubMed
    Summary
    This summary is machine-generated.

    We developed a new design optimization for planar photonic waveguides to improve waveguide-enhanced Raman spectroscopy (WERS). Our method balances surface intensity and grating coupling for better Raman signal detection.

    More Related Videos

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
    11:08

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

    Published on: November 30, 2012

    19.2K
    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
    12:18

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

    Published on: August 5, 2013

    17.3K

    Related Experiment Videos

    Last Updated: Nov 23, 2025

    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
    07:28

    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

    Published on: August 30, 2012

    11.0K
    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
    11:08

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

    Published on: November 30, 2012

    19.2K
    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
    12:18

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

    Published on: August 5, 2013

    17.3K

    Area of Science:

    • Photonics
    • Spectroscopy
    • Materials Science

    Background:

    • Planar photonic waveguides are crucial for enhancing spectroscopic techniques.
    • Waveguide-enhanced Raman spectroscopy (WERS) benefits from optimized waveguide designs for increased sensitivity.
    • Grating coupling efficiency and surface intensity are key parameters in waveguide performance.

    Purpose of the Study:

    • To introduce a novel design optimization process for planar photonic waveguides tailored for WERS.
    • To investigate the influence of film thickness on grating coupling efficiency for tantalum pentoxide (Ta2O5) and silicon (Si) waveguides.
    • To propose a new figure-of-merit (FOM) for optimizing waveguide thickness considering both coupling efficiency and surface intensity.

    Main Methods:

    • Simulated the impact of film thickness on grating coupling efficiency for Ta2O5 and Si.
    • Developed a new FOM that integrates coupling efficiency and surface intensity dependence.
    • Analyzed the trade-offs between optimum thickness for surface sensitivity and coupling efficiency.

    Main Results:

    • The optimal waveguide thickness for surface sensitivity was found to be less than that for optimal coupling efficiency in both material systems.
    • For a 785 nm tantalum pentoxide waveguide, the proposed optimization strategy suggests a 20% increase in core thickness compared to the optimum surface-sensitive thickness.
    • This optimization enhances overall performance in WERS applications.

    Conclusions:

    • A new design optimization process for planar photonic waveguides significantly improves WERS performance.
    • The proposed FOM provides a balanced approach to optimize waveguide thickness for dual objectives.
    • The findings offer practical guidance for designing high-performance WERS devices.