Description:
- Chemical and biological sensing
- Pharmaceutical analysis
- Surface and material science
Abstract
USC researchers have developed a method for fiber-based SERS that utilizes polarization-controlled plasmonic excitation. By employing two controllable, perpendicular directions of polarization along a fiber, the technique minimizes Raman signals generated from the fiber itself to obtain more accurate readings.
Benefit
- Increased fiber size without interference of Raman signals from fiber
- Polarization-controlled plasmonic excitation
- Cost-effective
Market Application
Surface-enhanced Raman spectroscopy (SERS) is a technique that combines Raman spectroscopy with the enhanced electromagnetic field effects that occur when certain molecules are in close proximity to metallic nanostructures. It provides significantly enhanced Raman signals, enabling more sensitive detection and characterization of molecules. Fiber-based SERS systems are preferable due to their self- alignment and portability, but intrinsic Raman signals generated within the fiber will interfere with the measurements if the fiber is too large. Consequently, a workaround to increase fiber length in SERS is needed.
Publications
Other
Stage of Development
- Proof of concept demonstrated
- Available for licensing