We study all-evanescent eigenmodes of a one-dimensional infinite periodic structure with alternating left-handed and right-handed materials that propagate perpendicularly to the surface or guided eigenmodes. Investigation of dispersion properties of such Bloch modes is shown to be crucial for understanding of an efficient radiation energy transport across the periodic multilayer structure. Freq...

well-defined crystalline pbse nanocubes and nanospheres have been synthesized through a simple hydrothermal method by using pb2+- edta and pb2+- oleylamine complexes at 180°c for different reaction times. composition and morphology of the samples have been characterized by means of xrd and sem. gradual release process of pb2+ from pb2+-edta and pb2+-oleylamine complexes can adjust the growth ra...

Objective: In this research, a new approach termed as “evolutionary-based brain map” is presented as a diagnostic tool to classify schizophrenic and control subjects by distinguishing their electroencephalogram (EEG) features.Methods: Particle swarm optimization (PSO) is employed to find discriminative frequency bands from different EEG channels. By deploying the energy of those selected fr...

objective: in this research, a new approach termed as “evolutionary-based brain map” is presented as a diagnostic tool to classify schizophrenic and control subjects by distinguishing their electroencephalogram (eeg) features. methods: particle swarm optimization (pso) is employed to find discriminative frequency bands from different eeg channels. by deploying the energy of those selected frequ...

Context. In the framework of the interstellar polycyclic aromatic hydrocarbons (PAHs) hypothesis, far–IR skeletal bands are expected to be a fingerprint of single species in this class. Aims. We address the question of detectability of low energy PAH vibrational bands, with respect to spectral contrast and intensity ratio with “classical” Aromatic Infrared Bands (AIBs). Methods. We extend our e...

A visible spectrum of the cluster Ca2Cl3 was observed from 651 to 630 nm by 1118 resonant multiphoton ionization spectroscopy. Spectra were obtained for each of the four isotopomers: Ca2 Cl3, Ca2 Cl2 Cl, Ca2 Cl Cl2, and Ca2 Cl3. The spectra were composed of a strong origin band at 15 350.8 cm and several very weak vibronic bands. All of the bands were sharp with partially resolved rotational ba...

We have studied the multi-nucleon transfer reaction 12 C(7 Li,p) at E lab = 44 MeV, populating states in the oxygen isotope 18 O. The experiments were performed at the Tandem accelerator of the Maier-Leibniz Laboratory in Munich using the high-resolution Q3D magnetic spectrograph. States were populated up to an excitation energy of 21.2 MeV with an overall energy resolution of 45 keV, and 30 ne...