S. Frisbie
Texas Tech University
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Publication
Featured researches published by S. Frisbie.
IEEE Photonics Journal | 2009
S. Frisbie; C.F. Chesnutt; M.E. Holtz; A. Krishnan; L.G. de Peralta; A. A. Bernussi
A proof-of-concept imaging technique that combines the advantages of wide-field surface plasmon, leakage radiation, and total internal reflection fluorescence microscopy methods is presented. High-contrast non-scanning images with subwavelength resolution of patterned and homogeneous samples coated with a fluorescent material were demonstrated. We show that the image formed in the back focal plane of the objective lens can be reconstructed from the image of the samples surface using an algorithm similar to that used in computerized tomographic imaging. Our experimental results suggest that there is a 1-D Fourier transform relationship between any line amplitude profile at a given angle passing through the center of the samples surface image and a line amplitude profile passing through the center of the back-focal-plane image at the same angle.
IEEE Photonics Technology Letters | 2003
L.G. de Peralta; A. A. Bernussi; S. Frisbie; R. Gale; H. Temkin
A high-performance reflective arrayed waveguide grating multiplexer/demultiplexer designed for compatibility with silicon integrated circuit processing is described. The grating, folded by a flat reflecting surface, can be printed in a single-exposure field of a photolithographic stepper. Advanced plasma assisted deposition is used to prepare waveguides with very low loss and minimum birefringence. Multiplexers with 40 channels separated by 100 GHz show intrinsic insertion losses of -2.4 dB, channel uniformity less than 0.6 dB, and very low polarization dependent wavelength shift of 0.012 nm.
Applied Physics Letters | 2010
A. Krishnan; S. Frisbie; L. Grave de Peralta; A. A. Bernussi
We report results on the propagation modes in plasmonic structures incorporating a gain medium using Fourier-plane leakage radiation microscopy. We demonstrate that high contrast images and detailed mode propagation information can be obtained with arrays of dielectric loaded surface plasmon waveguides. Clear interference effects were observed in the Fourier-plane images corresponding to arrays of bimetallic stripes coated with a gain material. This indicates coherent superposition of leaked fluorescence from coupled adjacent waveguides as a result of plasmon stimulated emission.
Journal of Lightwave Technology | 2009
S. Frisbie; A. Krishnan; Xiaoyan Xu; L.G. de Peralta; S. A. Nikishin; M. Holtz; A. A. Bernussi
We report simulations and experimental results on the incidence-angle dependence of the optical reflectivity of asymmetric dielectric-metal-dielectric planar structures. Transfer-matrix method and 2-D finite-element analysis revealed the presence of multiple resonances that were attributed to the surface plasmon (SP) polariton mode at the metal-dielectric interfaces and guided-wave polariton modes within the asymmetric dielectric-metal-dielectric waveguide. The number of guided-wave polariton resonances scale with the thickness of the dielectric guiding layer while the SP resonance remained essentially unaltered. These findings were validated through reflectivity measurements on sapphire-metal-polymer structures.
Journal of Applied Physics | 2007
L. Tian; S. Frisbie; A. A. Bernussi; M. Holtz
We report the optical studies of nanohole arrays in metallic coatings on cleaved optical fibers and also on glass substrates. Nanoholes are produced using electron-beam lithography and range in size from 100to700nm; the pitch is varied from 300to3000nm. Transmission properties are examined using visible (632.8nm) and infrared (1550nm) laser light. The observed interference patterns are determined by array symmetry, nanohole diameter, and pitch. Results from the optical fibers are compared with larger array areas fabricated on bulk glass substrates. In all cases the results are simulated using near- and intermediate-field diffraction theory with good agreement.
Journal of Lightwave Technology | 2004
A. A. Bernussi; L.G. de Peralta; V. Gorbounov; J.A. Linn; S. Frisbie; R. Gale; H. Temkin
This paper discusses an investigation of the effects of mirror quality on the performance of reflecting arrayed-waveguide-grating multiplexers. Using specially designed external mirrors as external reflectors, the optimum flatness and microroughness of the reflecting surface are determined. The experiments discussed in the paper indicate that a reflecting-surface flatness of /spl lambda//4 is sufficient to obtain high-performance reflective multiplexers. Extrinsic mirror-related phase and intensity errors were found to be negligible for surfaces polished with diamond lapping films with a grain size smaller than 1 /spl mu/m. These experimental results were found to be in excellent agreement with simulations based on mirror-related changes in the waveguide-grating-length increment.
Applied Physics Letters | 2003
A. A. Bernussi; L. Grave de Peralta; S. Frisbie; H. Temkin
A measurement of the insertion loss and crosstalk in folded, 100 GHz, arrayed waveguide multiplexers as a function of the number of grating waveguides is described. The number of grating waveguides can be varied in a single device to evaluate power truncation effects with high accuracy. We show that the central peak insertion loss decreases exponentially with the number of grating waveguides. The crosstalk decreases with increased number of waveguides and the measured dependence shows valleys and peaks associated with the passband spectrum of individual channels. These observations are in good agreement with simulation results. With the arrayed waveguide design used in this work the crosstalk performance becomes phase error limited for the number of waveguides greater than 250.
conference on lasers and electro optics | 2010
A. Krishnan; S. Frisbie; L. Grave de Peralta; A. A. Bernussi
Plasmon stimulated emission gives rise to coherent emission of leakage radiation from adjacent stripes in arrays of bi-metallic structures coated with dye-doped dielectric. This resulted in unambiguous interference patterns imaged by Fourier-plane leakage radiation microscopy.
Optics Communications | 2010
S. Frisbie; C. J. Regan; A. Krishnan; C.F. Chesnutt; J. Ajimo; A. A. Bernussi; L. Grave de Peralta
Archive | 2009
Catherine Chesnutt; S. Frisbie; Luis Grave-de-Peralta; A. A. Bernussi