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Related Experiment Video

Updated: Jun 23, 2026

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates
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Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates

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Tunable surface plasmon resonance on an elastomeric substrate.

Selim Olcum1, Askin Kocabas, Gulay Ertas

  • 1Bilkent University, Electrical and Electronics Engineering Department, Ankara, Turkey. selim@ee.bilkent.edu.tr

Optics Express
|May 13, 2009
PubMed
Summary
This summary is machine-generated.

Strained metallic gratings on flexible substrates can tune surface plasmon resonance. This tunability enhances Raman spectroscopy signals, offering a new tool for sensitive chemical detection.

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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
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Last Updated: Jun 23, 2026

Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates
11:44

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Published on: March 20, 2015

Fabrication of polydimethylsiloxane (PDMS)-Based Flexible Surface-Enhanced Raman Scattering (SERS) Substrate for Ultrasensitive Detection
03:33

Fabrication of polydimethylsiloxane (PDMS)-Based Flexible Surface-Enhanced Raman Scattering (SERS) Substrate for Ultrasensitive Detection

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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

Area of Science:

  • Plasmonics and Nanophotonics
  • Materials Science
  • Spectroscopy

Background:

  • Surface plasmon polaritons (SPPs) are collective electron oscillations at metal-dielectric interfaces.
  • Metallic gratings are used to excite and manipulate SPPs.
  • Elastomeric substrates offer mechanical flexibility for tunable optical properties.

Purpose of the Study:

  • To investigate the strain-tunability of metallic gratings on elastomeric substrates.
  • To explore the impact of grating period changes on surface plasmon resonance.
  • To assess the potential of these tunable gratings for surface-enhanced Raman spectroscopy (SERS).

Main Methods:

  • Fabrication of metallic gratings (gold and silver) on elastomeric substrates.
  • Application of external mechanical strain to alter the grating period.
  • Excitation and characterization of surface plasmon resonance.
  • Evaluation of SERS signal enhancement under varying strain conditions.

Main Results:

  • Grating periods were successfully tuned by up to 25% with applied strain.
  • Surface plasmon resonance conditions were controlled by adjusting the grating period.
  • Significant enhancement of Raman signals was observed with strain-tuned gratings.

Conclusions:

  • Elastomeric substrates enable strain-tunable metallic gratings for plasmonics.
  • Tunable gratings offer a method to optimize SPP resonance for SERS.
  • This approach provides a promising route for developing highly sensitive SERS substrates.