This Article contains typographical errors. In the Results section under subheading 'Nanotube-based compact all-fiber triple-wavelength laser sys-tem' , " The dispersion parameter of these three CFBGs is ~2.2 ps 2 /cm with the length of ~10 mm " should read: " The dispersion parameter of these three CFBGs is − 2.2 ps 2 /cm with the length of ~10 mm ". In addition, " Fig. 1(d) shows the absorpti...

We report the discovery of significant linear polarization (p > 1%) in the hyperluminous z = 3.87 BALQSO APM 08279+5255. The polarization spectrum is complex, with properties similar to those of other, lower redshift but more highly polarized BALQSOs. The resonance emission lines are unpolarized while the absorption troughs show polarization similar to or higher than the continuum. In particula...

the dimerization constants of safranine t have been determined by studying the dependence of its absorption spectra on the temperature in the range 30–70 ◦c at different total concentrations of safranine t (1.03×10−5, 1.44×10−5 and 1.73×10−5 m). the monomer–dimer equilibrium of safranine t has been determined by applying mcr-als method on the absorption spectra. the quantitative analysis of the...

The terms X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) refer, respectively, to the structure in the X-ray absorption spectrum at low and high energies relative to the absorption edge. Routine analysis of EXAFS experiments generally makes use of simplified models and several many-body parameters, e.g. mean free paths, many-body amplitude facto...

Plant factories have attracted increasing attention because they can produce fresh fruits and vegetables free from pesticides in all weather. However, the emission spectra from current light sources significantly mismatch the spectra absorbed by plants. We demonstrate a concept of using multiple broad-band as well as narrow-band solid-state lighting technologies to design plant-growth light sou...

In an earlier report (1) it was shown that a band characteristic of the peptide bond appeared in the ultraviolet and that values of the molar absorption coefficient (em) at 205 mp could be used to characterize this band. It was shown, for a series of proteins, that the contribution of each peptide bond (ep) to the molar absorption coefficient is fairly constant, lying between 2500 and 2800. The...

In an earlier report (1) it was shown that a band characteristic of the peptide bond appeared in the ultraviolet and that values of the molar absorption coefficient (em) at 205 mp could be used to characterize this band. It was shown, for a series of proteins, that the contribution of each peptide bond (ep) to the molar absorption coefficient is fairly constant, lying between 2500 and 2800. The...

This Letter studies the degenerate two-photon absorption (2PA) spectra of three diazoaromatic compounds using Z-scan with fs-pulses. The 2PA spectra exhibit resonant enhancement of the nonlinearity as the excitation approaches the linear absorption. The absence of 2PA to the pp band is related to the weaker donor/acceptor groups, and lower symmetry of diazoaromatic compounds, in agreement with ...

Ultraviolet-visible absorption measurements of high purity and well separated carbon onion samples are reported. The results show that, after purification, absorption features from carbon onions match well with the interstellar UV spectrum. The measurements show that the absorption peak position remains constant at 4.55+/-0.1 microm(-1), and the width varies from 1.2-1.6 microm(-1), a key featu...