欢迎感兴趣的老师与学生参加。

以下为报告的摘要部分：
 
  Modern study of biological systems increasingly depends on our ability to dynamically and quantitatively measure molecular processes with high sensitivity, selectivity, and multiplexity in complex environments.1 Biomaterials have unique recognition and catalytic properties whereas plasmonic nanomaterials exhibit unique electronic and photonic properties that provide electronic or optical transduction of biological phenomena. Their integration yields plasmonic nano-bio hybrid sensors with multiple synergetic advantages over traditional molecular sensing techniques: improved sensitivity, selectivity, and capability of various surface-enhanced spectroscopic sensing. However, nanoplasmonic sensing is mostly based on single dipole mode. Therefore, the broad width of dipolar mode resonance confines figure of merit in plasmonic refractometric sensing. Moreover, the low electric near-field intensity of single dipolar mode limits enhancement in surface-enhanced plasmonic sensing. In this talk, I would like to discuss how high-order localized plasmon modes and their interaction with dipole modes enable optical properties of a single metallic nanodisk to vary from Fano-like resonances to superscattering. Furthermore,  I will show how such plasmon-mode engineering can benefit nanoplasmonic sensing2, 3 and discuss some future directions for multiplexed nanoplasmonic biosensing4 (e.g. interaction of plasmonic modes with vibrational modes of biomaterials for surface-enhance vibrational spectroscopy).
 
Reference
 
1. Zheng, W.; Chiamori, H. C.; Liu, G. L.; Lin, L.; Chen, F. F., Nanofabricated plasmonic nano-bio hybrid structures in biomedical detection. Nanotechnology Reviews 2012, 1.
2. Wan, W.; Zheng, W.; Chen, Y.; Liu, Z., From Fano-like interference to superscattering with a single metallic nanodisk. Nanoscale 2014, 6, 9093-9102.
3. Ruan, Z. C.; Fan, S. H., Superscattering of Light from Subwavelength Nanostructures. Phys. Rev. Lett. 2010, 105.
4. Wu, C.; Khanikaev, A. B.; Adato, R.; Arju, N.; Yanik, A. A.; Altug, H.; Shvets, G., Fano-resonant asymmetric metamaterials for ultrasensitive spectroscopy and identification of molecular monolayers. Nat Mater 2012, 11, 69-75.