Laser-Induced Bleaching of Carbon Nanomaterials Suspensions

We have studied the effect of nanosecond laser pulses on the optical properties of onion-like (OLC) and multi-wall carbon nanotubes (MWNTs) suspensions in N,N-dimethylformamide (DMF). The results demonstrate that both suspensions irreversibly bleach under high-intensity laser radiation. The bleaching is accompanied by losing optical limiting (OL) in suspensions. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3542

Status of the Baikal-GVD project

The construction of a km^3-scale neutrino telescope - the Gigaton Volume Detector (GVD) in Lake Baikal - is the central goal of the Baikal collaboration. During the R&D phase of the GVD project in 2008-2010 years the basic elements of GVD - new optical modules, FADC readout units, underwater communications and trigger systems - have been developed, produced and tested in situ by long-term operating prototype strings in Lake Baikal. The prototyping phase of the GVD project has been started in April 2011 with the installation of a three string array (prototype cluster) which comprises all basic elements and systems of the GVD-telescope in Lake Baikal. We describe configuration and technical design of the GVD, present selected results obtained during 2008-2010 with prototype strings, and describe configuration and design of the 2011 prototype cluster