Now showing items 1-10 of 52
Stability of cnoidal wave frequency combs in microresonators
(OSA Publishing, 2018)
We determine the regions in the parameter space of microresonators where cnoidal waves (Turing rolls) are stable. Solitons are included as a special limit. We identify conditions to efficiently obtain broadband frequency combs.
Coupled Lugiato-Lefever equation for nonlinear frequency comb generation at an avoided crossing of a microresonator
(Springer Nature Switzerland AG., 2017-03-23)
Guided-mode coupling in a microresonator generally manifests itself through avoided crossings of the corresponding resonances. This coupling can strongly modify the resonator local effective dispersion by creating two ...
Ultra-broadband, polarization-independent, wide-angle absorption in impedance-matched metamaterials with anti-reflective moth-eye surfaces
(OSA Publishing, 2018)
We computationally study periodic impedance-matched metal-dielectric metamaterials and the advantage of imprinting moth-eye surfaces on them. Impedance-matched metamaterials are known to act as strong, polarization-independent, ...
Cnoidal Waves in Microresonators
(OSA Publishing, 2016)
Cnoidal waves are the periodic analogs of solitons. Like solitons, they can be generated in microresonators and correspond to frequency combs. We describe their properties and potential uses.
Linear and Nonlinear Optical Properties of Quasi-Periodic One-Dimensional Structures
(Springer, Berlin, Heidelberg, 2002-01-22)
The optical properties of self-similar optical multilayer structures are first discussed for low input intensities, thus allowing the neglect of nonlinear effects. The structures under consideration are obtained by alternating ...
Optomechanically-induced frequency combs
(OSA Publishing, 2017-04)
We investigate the classical nonlinear dynamics of a single mode optomechanical cavity, showing that a frequency comb made of equidistant spectral lines can be formed in the instability regime due to the excitation of ...
Metamaterials for omnidirectional reflectors and hollow-core waveguides
(OSA Publishing, 2006)
We show that metamaterials have omnidirectional reflecting properties in the frequency region between the magnetic plasma frequency and the electric plasma frequency. These properties are useful for reflectivity control, ...
Metal/Dielectric Photonic Crystal with Broadband Transparency for Propagating and Evanescent Waves
(OSA Publishing, 2007)
Strongly coupled metal/dielectric cavities with anti-reflection coatings at the entrance and exit faces provide a very broad transmission band for both the evanescent and propagating waves. Power lost through the ...
Plasmonic Second Harmonic Generation (SHG) from Metallo-Dielectric Multilayered Structures
(OSA Publishing, 2010)
We study SHG from metallo-dielectric multilayered structures with particular attention to the role played in the strong enhancement of generation process by the geometry of the elementary cell and by the excitation of ...
Thin Plasmonic Grating for All-Optical Switching
(OSA Publishing, 2012-06-17)
We utilize narrow Fano-like resonances in gratings composed of metal films that support long range surface plasmons to provide all-optical switching with low input powers. Switching is illustrated for a grating embedded ...