Generation of infrared surface plasmon resonances with high refractive index sensitivity utilizing tilted fiber Bragg gratings.

We demonstrate the use of tilted fiber gratings to assist the generation of localized infrared surface plasmons with short propagation lengths and a sensitivity of dlambda/dn = 3,365 nm in the aqueous index regime. It was also found that the resonances could be spectrally tuned over 1,000 nm at the same spatial region with high coupling efficiency (in excess of 25 dB) by altering the polarization of the light illuminating the device.

[1]  T. Erdogan.  Fiber grating spectra , 1997 .

[2]  H. Raether.  Surface Plasmons on Smooth and Rough Surfaces and on Gratings , 1988 .

[3]  Marek Piliarik,et al.  Surface plasmon resonance sensor based on a single-mode polarization-maintaining optical fiber , 2003 .

[4]  David J. Webb,et al.  Surface plasmon resonance generation utilising gratings for biochemical sensing , 2006 .

[5]  Reinhardt Willsch,et al.  A fibre Bragg grating refractometer , 2001 .

[6]  R. Corn,et al.  Surface plasmon resonance imaging measurements of ultrathin organic films. , 2003, Annual review of physical chemistry.

[7]  Eric M. Yeatman,et al.  Resolution and sensitivity in surface plasmon microscopy and sensing , 1996 .

[8]  Sergei A. Vasiliev,et al.  Long-period refractive index fiber gratings: properties, applications, and fabrication techniques , 2000, Other Conferences.

[9]  S. Yee,et al.  A fiber-optic chemical sensor based on surface plasmon resonance , 1993 .

[10]  Michel Meunier,et al.  Properties and sensing characteristics of surface-plasmon resonance in infrared light. , 2003, Journal of the Optical Society of America. A, Optics, image science, and vision.

[11]  Kazuhiro Watanabe,et al.  Gold thickness dependence of SPR-based hetero-core structured optical fiber sensor , 2005 .

[12]  Günter Gauglitz,et al.  Surface plasmon resonance sensors: review , 1999 .

[13]  Jiří Homola,et al.  Novel polarization control scheme for spectral surface plasmon resonance sensors , 1998 .