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 Experiment Videos

Surface plasmon resonance sensor based on polarization interferometry and angle modulation.

Zhanliang Sun1, Yonghong He, Jihua Guo

  • 1Laboratory of Optical Imaging and Sensing, Graduate School of Shenzhen, Tsinghua University, China.

Applied Optics
|April 28, 2006
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

π-HelixNovo2: Making Accurate Online De Novo Peptide Sequencing Available to All.

Genomics, proteomics & bioinformatics·2026
Same author

Identification of candidate genes regulating seed oil and protein content in Brassica napus via integrated genome-wide association and transcriptome analysis.

BMC plant biology·2026
Same author

SRSF3 determines T<sub>reg</sub> cell fate in antitumor immunity and autoimmunity.

Science advances·2026
Same author

Effects of Different Sources of <i>Armillaria mellea</i> Co-Cultivation on the Quality and Soil Microecology of <i>Gastrodia elata</i>.

Plants (Basel, Switzerland)·2026
Same author

Emerging roles of m<sup>6</sup>A modification in endodontic diseases: a systematic review.

Epigenomics·2026
Same author

Subspecialty-specific foundation model for intelligent gastrointestinal pathology.

NPJ digital medicine·2026
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
See all related articles

This study introduces a novel surface plasmon resonance (SPR) sensing technique using polarization interferometry. The method enhances sensitivity by analyzing the complex reflection coefficient, offering a robust tool for various research fields.

Area of Science:

  • Optics and Photonics
  • Analytical Chemistry
  • Biophysics

Background:

  • Surface plasmon resonance (SPR) is a label-free detection technology widely used in chemical and biological sensing.
  • Traditional SPR sensing methods often rely on measuring changes in reflection intensity or phase shift, which can be limited in sensitivity and range.
  • Developing novel SPR techniques with improved sensitivity and robustness is crucial for advancing analytical capabilities.

Purpose of the Study:

  • To present a new SPR sensing technique utilizing polarization interferometry and angle modulation.
  • To demonstrate that the sensitivity of this technique is a function of the complex reflection coefficient, not solely intensity or phase.
  • To evaluate the performance of the developed SPR sensing technique in terms of detection limit, linear range, and film thickness independence.

Related Experiment Videos

Main Methods:

  • Implementation of a surface plasmon resonance (SPR) sensing setup.
  • Utilizing polarization interferometry combined with angle modulation for signal detection.
  • Analysis of the complex reflection coefficient for sensing applications.

Main Results:

  • Achieved a three times standard deviation detection limit of 5.1 x 10(-7) refractive index units in a 2 Hz bandwidth.
  • Theoretical analysis indicated a wide linear measurement range for the technique.
  • Demonstrated that SPR sensitivity is independent of gold film thickness for films approximately 5 nm thick.

Conclusions:

  • The presented SPR sensing technique offers high sensitivity and a wide linear range.
  • The method's robustness to gold film thickness makes it versatile for practical applications.
  • This advanced SPR sensing approach is well-suited for diverse physical, chemical, and biological research applications.