Passive mode-locking in semiconductor lasers with saturable absorbers bandgap shifted through quantum well intermixing

Passive mode-locking in semiconductor lasers in a Fabry–Perot configuration with a bandgap blueshift applied to the saturable absorber (SA) section has been experimentally characterized. For the first time a fully post-growth technique, quantum well intermixing, was adopted to modify the material bandgap in the SA section. The measurements showed not only an expected narrowing of the pulse width but also a significant expansion of the range of bias conditions generating a stable train of optical pulses. Moreover, the pulses from lasers with bandgap shifted absorbers presented reduced chirp and increased peak power with respect to the nonshifted case

Druže Tito svi smo mi – ti

The article describes different ways of depicting Josip Broz Tito in poems which embody socialistic values. The notion of the Government relies on the idea of the abscence, and the exact abscence requires the image in order to be effective. This is the key role of poetry, which conveyed the constructs of both individual and social illusion.The article describes different ways of depicting Josip Broz Tito in poems which embody socialistic values. The notion of the Government relies on the idea of the abscence, and the exact abscence requires the image in order to be effective. This is the key role of poetry, which conveyed the constructs of both individual and social illusion

High-extinction-ratio TE/TM selective Bragg grating filters on silicon-on-insulator

We report on the design and fabrication of TE and TM polarization selective Bragg grating filters in the form of sinusoidal perturbations on the waveguide sidewall and etched holes on the top of the waveguide, respectively. Combining the two geometries on a silicon-on-insulator waveguide resulted in Bragg grating filters with high extinction ratios of approximately 60 dB

Advancing the performance of one-dimensional photonic crystal/photonic wire micro-cavities in silicon-on-insulator

We present new results that demonstrate advances in the performance achievable in photonic crystal/photonic wire micro-cavities. In one example, a quality-factor value as high as 147,000 has been achieved experimentally at a useful transmission level

Charged-Current Neutral Pion production at SciBooNE

SciBooNE, located in the Booster Neutrino Beam at Fermilab, collected data from June 2007 to August 2008 to accurately measure muon neutrino and anti-neutrino cross sections on carbon below 1 GeV neutrino energy. SciBooNE is studying charged current interactions. Among them, neutral pion production interactions will be the focus of this poster. The experimental signature of neutrino-induced neutral pion production is constituted by two electromagnetic cascades initiated by the conversion of the neutral pion decay photons, with an additional muon in the final state for CC processes. In this poster, I will present how we reconstruct and select charged-current muon neutrino interactions producing neutral pions in SciBooNE.Comment: NuInt09 poster proceedings, 4 page

Rijeka i oko nje kod Matoša

The article discusses the relationship between A.G. Matoš and the city of Rijeka, which can be seen in his work „Oko Rijeke”. The focus of the analysis is in the ideology by which the discourse subject observes the city. From the viewpoint of patriotic ideology, the subject comments on the colonialist relations that occur at the time in Rijeka, but his idealization of patriotic culture, as opposed to „negative” historic, landscape and political status of the city, impede his ability to give an accurate insight. Therefore, his work is inclined to be more political than literary.The article discusses the relationship between A.G. Matoš and the city of Rijeka, which can be seen in his work „Oko Rijeke”. The focus of the analysis is in the ideology by which the discourse subject observes the city. From the viewpoint of patriotic ideology, the subject comments on the colonialist relations that occur at the time in Rijeka, but his idealization of patriotic culture, as opposed to „negative” historic, landscape and political status of the city, impede his ability to give an accurate insight. Therefore, his work is inclined to be more political than literary