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  1. No Access

    Chapter and Conference Paper

    Whispering Gallery Modes Microresonators for Sensing and Biosensing Applications

    Whispering Gallery Modes (WGMs) microresonators continue to receive an even greater interest for investigation in many fundamental processes (e.g.: quantum electrodynamics or non–linear optics) and in more app...

    A. Barucci, F. Baldini, S. Berneschi, F. Cosi, A. Giannetti, G. Nunzi Conti… in Sensors (2015)

  2. No Access

    Article

    Whispering gallery mode profiles in a coated microsphere

    The properties of whispering gallery modes (WGM) of a microsphere can be tailored by coating the resonator with a thin film. If the coating has a higher refractive index than the microsphere core, the resultin...

    D. Ristić, A. Chiappini, M. Mazzola… in The European Physical Journal Special Topi… (2014)

  3. No Access

    Chapter and Conference Paper

    Optical Microbubble Resonator: A Novel Structure for Sensing Applications

    Recently a new class of optical resonant microcavities, the so called microbubble resonators (MBRs) for their particular shape, have been demonstrated. Their feature of combining the unique properties of whisp...

    S. Berneschi, A. Barucci, M. Brenci, F. Cosi, D. Farnesi, G. Nunzi Conti… in Sensors (2014)

  4. No Access

    Chapter and Conference Paper

    Aptamer Based Whispering Gallery Mode Biosensor

    Whispering gallery mode resonators (WGMR), in the form of optical silica microspheres, have been recently proposed as an efficient tool for the realisation of optical biosensors. A crucial step for producing r...

    S. Soria, L. Pasquardini, A. Barucci, S. Berneschi, F. Cosi, L. Lunelli… in Sensors (2014)

  5. No Access

    Article

    Whispering gallery mode microresonators: Fundamentals and applications

    Confinement of light into small volumes has become an essential requirement for photonic devices; examples of this trend are provided by optical fibers, integrated optical circuits, semiconductor lasers, and p...

    G. C. Righini, Y. Dumeige, P. Féron, M. Ferrari… in La Rivista del Nuovo Cimento (2011)

  6. No Access

    Article

    Reproducibility of splicer-based long-period fiber gratings for gain equalization

    We fabricated long-period fiber gratings (LPFGs) using electric arc discharges. We observed that the fiber becomes slightly tapered due to longitudinal tension during the arc: this effect depends on the arc cu...

    I. Cacciari, M. Brenci, R. Falciai, G. Nunzi Conti, S. Pelli… in Optoelectronics Letters (2007)

  7. No Access

    Article

    Er3+-activated silica inverse opals synthesized by the solgel method

    We present the details of the sol-gel processing used to realize inverse silica opal, where the silica was activated with 0.3 mol% of Er3+ ions. The template (direct opal) was obtained assembling polystyrene sphe...

    A. Chiappini, C. Armellini, A. Chiasera, Y. Jestin, M. Ferrari… in Optoelectronics Letters (2007)

  8. No Access

    Article

    Diagnostic techniques for photonic materials based on Raman and Brillouin spectroscopies

    The elastic and vibrational properties of a material, bulk or planar waveguide, are studied by Brillouin and Raman spectroscopy to follow the process of nanocrystals growth in glass-ceramics. The nanoparticles...

    M. Mattarelli, S. Caponi, A. Chiappini, M. Montagna, E. Moser… in Optoelectronics Letters (2007)