Novel Micro-Cavity Substrates for Improving the Raman Signal from Submicrometer Size Materials

  title={Novel Micro-Cavity Substrates for Improving the Raman Signal from Submicrometer Size Materials},
  author={Anup Kumar Misra and Shiv k. Sharma and Lori E. Kamemoto and Pavel V. Zinin and Qigui Yu and Ningjie Hu and Levi Melnick},
  journal={Applied Spectroscopy},
  pages={373 - 377}
A novel and simple method for improving the detection limit of conventional Raman spectra using a micro-Raman system and picoliter volumes is presented. A micro-cavity in a reflecting metal substrate uses various mechanisms that collectively improve the entire Raman spectrum from the sample. A micro-cavity with a radius of several micrometers acts as a very effective device that provides multiple excitation of the sample with the laser and couples the forward-scattered Raman photons toward the… 

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