Two opposite chiralities of Dirac electrons in a two-dimensional (2D) graphene sheet modify the Friedel oscillations strongly: electrostatic potential around an impurity decays much faster than 2D electron gas. At distances $r$ larger de Broglie wavelength, it as $1/{r}^{3}$. Here we show that weak uniform magnetic field affects anomalous way. It creates field-dependent contribution which is do...

results the simulation results showed that the penetration depth and temperature rise of 980 nm wavelengths were different from those of 1064 nm wavelength. it appeared that 1064 nm wavelength penetrated to deeper layers of tissue compared with 980 nm. moreover, temperature rise during 1064 nm irradiation led to temperature increase in allowable ranges. the findings proved the reason why 1064 n...

In this paper, we investigate variation of the wavelength, intensity and polarization of the self-assembled InAs/GaAs quantum dots emission by microphotoluminescence spectroscopy at the liquid helium temperature. The microcavity wafer sample is grown by molecular beam epitaxy (MBE) and chemically etched into the micropillar structure (with elliptical cross section - long and short axis 2µm×1.5µ...

Using the 100-m Green Bank Telescope, we have conducted a cm-wavelength search for CO J=1-0 line emission towards the high-redshift, far-infrared luminous object, HDF850.1 over the redshift interval 3.3 ∼ z ∼ 5.4. Despite the wealth of existing multi-wavelength observations, and the recent identification of a galaxy counterpart in deep K ′ band (2.2 μm) imaging, an unambiguous spectroscopic red...

The fraudulent addition of plant oils during the manufacturing of hard cheeses is a real issue for the dairy industry. Considering the importance of monitoring adulterations of genuine cheeses, the potential of fluorescence spectroscopy for the detection of cheese adulteration with plant oils was investigated. Synchronous fluorescence spectra were collected within the range of 240 to 700 nm wit...

UNLABELLED For spectral and nonspectral aperture color 3 s stimuli, Bezold-Brucke (B-B) hue-shift was measured for one to six subjects for four functions: (1) luminance (L) level from 0.1:1.0 through 100:1000 cd/m2; (2) L ratio from 1:2 through 1:1000; (3) illuminant color temperature (for seven illuminants including A and D65) by two adaptation methods; and (4) interstimulus interval from 0 th...

Infrared emission spectra recorded by airborne or satellite spectrometers can be searched for spectral features to determine the composition of rocks on planetary surfaces. Surface materials are identified by detections of characteristic spectral bands. We show how to define whether to accept an observed spectral feature as a detection when the target material is unknown. We also use remotely s...

Time evolution of a nonequilibrium polariton condensate has been studied in the framework of a microscopic approach. It has been shown that due to polariton-polariton scattering a significant condensate depletion takes place in a comparatively short time interval. The condensate decay occurs in the form of multiple echo signals. Distribution-function dynamics of noncondensate polaritons have be...