New materials for sorption of hydrogen

The influence of temperature, duration of thermal treatment, and oxidation modes of the aluminum base on processes in which intermetallic compounds LiLaAl are formed by the method of electrochemical cathodic intercalation was studied. The optimal modes of formation of LiLaAl_ox compounds exhibiting high sorption capacity for hydrogen were determined.Translated from Zhurnal Prikladnoi Khimii, Vol. 77, No. 9, 2004, pp. 1516–1519.Original Russian Text Copyright © 2004 by Olshanskaya, Sobgaida, Popova.     

Photon echo in an atomic frequency comb in a Pr-doped LaF3 crystal

The possibility of storage of an optical pulse in a memory based on an atomic frequency comb in a Pr³⁺:LaF₃ crystal is demonstrated experimentally. A new method of storage-time control using an external electric field is proposed and experimentally implemented.     

On the possibility of reducing the influence of laser radiation linewidth on execution of quantum logic operations using off-resonant Raman interaction

We investigate the possibility of reducing negative influence of the laser radiation linewidth on execution of quantum logical operations using off-resonant Raman interaction.     

Observation of Coherent Population Trapping in Ensembles of Diamond NV-Centers under Ground-State Level Anticrossing Conditions

Optics and Spectroscopy - The coherent population trapping effect in ensembles of diamond NV-centers under ground-state level anticrossing conditions was implemented with the application of a...