A theoretical study of super generation in photonic crystal fiber and its application to pulse compression is presented. The evolution of the spectrum can be divided into three stages: initial broadening below a certain threshold propagation distance, dramatic broadening to a supercontinuum at a threshold distance, and, finally, saturation of the spectral width on propagation. It is found that ...

In this paper the effect of Polarization Mode Dispersion, Polarization Dependent Loss on the Chirped Super Gaussian pulse is analyzed and Pulse broadening in the presence and absence of PMD for up chirped and down chirped pulses in highly birefringent optical link at 1550nm is investigated by numerical simulation. Also maintaining PMD and PDL, the input light signal is launched at different Sta...

Dielectric relaxation spectroscopy has been used to investigate the normal-mode relaxation in disordered diblock copolymer melts far from the order-to-disorder transition (ODT). The dielectric spectra are analyzed in order to quantitatively obtain the distribution of relaxation times in the disordered diblocks. The width of the relaxation function shows significant broadening relative to the re...

An extraordinary temperature dependence of the resonant Andreev reflection via discrete energy level in a normal-metal / quantum-dot / superconductor (N-QD-S) system is predicted theoretically by using Green function technique. The width of zero bias conductance peak in N-QD-S is about √ ΓL + Γ 2 R and does not exhibit thermal broadening, where ΓL and ΓR are the coupling strength between QD and...

We show that intramolecular exchange disorder recently found in the geometrically frustrated magnetic molecules {Mo(72)Fe(30)} and {Mo(72)Cr(30)} leads, in a classical Heisenberg model description, to spin freezing and slow magnetization dynamics reminiscent of spin glass behaviour. Also we suggest that our low temperature and low magnetic field nuclear magnetic resonance (NMR) measurements on ...

We report on the observation of O VII Doppler line broadening in a compact knot at the edge of SN 1006 detected with the Reflective Grating Spectrometer on board XMM-Newton. The observed line width of σ = 3.4± 0.5 eV at a line energy of 574 eV indicates an oxygen temperature of kT = 528± 150 keV. Combined with the observed electron temperature of ∼ 1.5 keV the observed broadening is direct evid...

This paper addresses the question, what does the spectrum of a typical quasar reveal about the velocity structure within its broad emission line region clouds? Turbulent (i.e., nonthermal) broadening of spectral lines can be due to macroturbulence or microturbulence. Microturbulence a†ects line formation and the emitted spectrum and may be required to account for the observed smoothness of the ...

An equation analogous to the Van Deemter equation in chromatography is developed to account for peak broadening in capillary zone electrophoresis (CZE). This equation applies to conditions where the peaks are symmetrical (sample zone concentration much less than background electrolyte concentration). To identify and to quantitate the effects of different contributors to the peak width in CZE, i...