Showing papers by "Michael Mazilu published in 2004"
TL;DR: This result represents the first demonstration, to the authors' knowledge, of a polarization splitter realized in a planar photonic crystal configuration in the near-infrared wavelength range operating solely in transmission mode.
Abstract: The differential dispersion relation for the E and H modes (TM-like and TE-like, respectively) in planar photonic crystals is used to control the polarization-dependent propagation of light. E- and H-polarized beams were separated by 10 degrees after propagating through a 20-microm-long planar photonic crystal in the wavelength range from 1250 to 1300 nm. The plane-wave expansion calculation matches well with the experimental results. This result represents the first demonstration, to our knowledge, of a polarization splitter realized in a planar photonic crystal configuration in the near-infrared wavelength range operating solely in transmission mode.
75 citations
20 Dec 2004
TL;DR: In this paper, the authors show the breakdown of the standard group velocity at the band-edge and compare different generalized pulse velocity definitions, and show that the superluminal and ultra slow group velocities at the bandside can be achieved by photonic crystal waveguides.
Abstract: Photonic crystal waveguides exhibit superluminal and ultra slow group velocities at the band-edge. We show the breakdown of the standard group velocity at the band-edge and compare different generalized pulse velocity definitions.
1 citations
20 Dec 2004
TL;DR: In this article, the polarization state of a laser beam is determined using a scanning Michelson interferometer, which gives direct and real-time access to the polarization characteristics of laser beams.
Abstract: The polarization state of a laser beam is determined using a scanning Michelson interferometer. This method gives direct and real-time access to the polarization characteristics of laser beams.
Proceedings Article•
16 May 2004TL;DR: In this article, the authors report interferometric switching experiments with an InGaAs semiconductor optical amplifier (SOA), which reveal ultrafast refractive index changes attributed to carrier heating.
Abstract: We report interferometric switching experiments with an InGaAs semiconductor optical amplifier (SOA). Measured switching windows reveal ultrafast refractive index changes attributed to carrier heating. This conclusion is supported by calculations using a phenomenological model.