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Updated: Jul 3, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Enhancing fluorescence detection with a photonic crystal structure in a total-internal-reflection configuration
Jing Yong Ye1, Mitsuru Ishikawa
1Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109-2099, USA. jyye@umich.edu
Researchers developed an open microcavity using a one-dimensional photonic crystal. This novel biosensing platform achieved over 20-fold fluorescence enhancement for immobilized fluorophores.
Area of Science:
- Photonics
- Biophotonics
- Optical Engineering
Background:
- Previous studies focused on embedding fluorophores within photonic crystals.
- A gap exists in utilizing open microcavities for fluorescence enhancement.
- Total-internal-reflection geometries offer unique optical properties.
Purpose of the Study:
- To demonstrate a novel open microcavity design using a one-dimensional photonic crystal.
- To explore the potential of this configuration for fluorescence imaging and biosensing.
- To quantify the fluorescence enhancement achieved with immobilized fluorophores.
Main Methods:
- Fabrication of a one-dimensional photonic crystal structure.
- Implementation of a total-internal-reflection geometry to form an open microcavity.
- Time-resolved fluorescence detection of immobilized fluorophores within the open cavity.
Main Results:
- Successfully formed an open microcavity using a one-dimensional photonic crystal.
- Observed significant fluorescence enhancement for immobilized fluorophores.
- Achieved over 20-fold fluorescence enhancement, demonstrating the platform's efficacy.
Conclusions:
- The developed open microcavity offers a unique platform for enhanced fluorescence.
- This approach holds significant promise for advanced fluorescence imaging and biosensing applications.
- The demonstrated fluorescence enhancement validates the potential of this photonic crystal-based system.
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