Cover Story 2014, Volume 9 Issue 1
High vacuum tip enhanced Raman spectroscopy (HV-TERS), one of the most recent advances in nanoscale analysis, is a high sensitivity and high spatial resolution optical analytical technique. It was found that in-situ plasmon driven chemical reaction can be investigated by HV-TERS. The temperature of localized area can be obtained by the clearly Stokes and anti-Stokes HV-TERS peaks. The nonlinear effects in HV-TERS, including IR active mode, Fermi Resonance and Hyper Raman, are also found. Those findings hold great promise for ultrasensitive detection and significantly extend the physical and chemical analysis for single molecule. For more details, please refer to the article “High-vacuum tip enhanced Raman spectroscopy” by Zheng-Long Zhang et al., pp 17–24. [Photo credits: Meng-Tao Sun, Institute of Physics, Chinese Academy of Sciences][Detail] ...