Raman spectroscopy is a powerful tool for detecting and identifying molecular structures and chemical bonds in materials. Diverse platforms have been developed to enhance spectroscopic sensitivity. We present a novel doubly enhanced Raman spectroscopy through an optoplasmonic microprobe configuration. The microprobe includes a high-Q whispering-gallery-mode microsphere resonator and nanoplasmonic structures on a substrate with samples sandwiched between them. The optoplasmonic hybrid modes can realize a two-order-of-magnitude improvement over traditional surface-enhanced Raman spectroscopies (SERS), such as commercial SERS test papers. Additionally, 2D Raman imaging is demonstrated by scanning the sample surfaces, showing a new tool for highly sensitive Raman spectroscopy imaging.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.