Author： Chen Jianjun
Publisher： Springer Publishing Company
ISSN： 1557-1955
Source： Plasmonics, Vol.8, Iss.2, 2013-06, pp. : 233-237
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Efficient all-optical molecule-plasmon modulation is experimentally demonstrated by employing a compact T-shape single slit on a metal film coated with an azopolymer film, in which the azobenzene molecules can be reoriented by a pump beam. In the T-shape single slit, the transmission spectra exhibit periodic behaviors and are quite sensitive to variations of the refractive index of the azopolymer in the groove. Under a pump beam, the azobenzene molecules are reoriented, so the SPPs in the groove feel a refractive index quite different from that of the originally isotropic azopolymer with randomly orientations. This leads to a high modulation depth of about 53 % (3.3 dB) and a phase variation of >
Related content
Nanoscale Surface Plasmon All-Optical Diode Based on Plasmonic Slot Waveguides
By Hu Xiaoyong
Plasmonics, Vol. 6, Iss. 4, 2011-12 ,pp. :
Access to resources
Recommend
Development of a single molecule optical probe
Thin Solid Films, Vol. 331, Iss. 1, 1998-10 ,pp. :