We discuss properties of cw and time-resolved photoluminescence (PL) as well as photoluminescence excitation (PLE) from co-doped ZnSe:Cl,N samples. These samples are characterized by the presence of the potential fluctuations due to charged donors and acceptors. We compare intensity dependent cw PL with the theory and find a good agreement. We also find that the material parameters obtained fro...

We show the first experimental evidence of the sensitivity enhancement that can be achieved in high resolution stimulated Raman spectroscopy of gases using hollow-core photonic crystal fibers (HCPCFs). Using low power cw lasers and a HCPCF containing the gas, we have observed more than four orders of magnitude enhancement of sensitivity when compared with the cw single focus regime, and a simil...

The Chemical Weapons Convention (CWC) is briefly characterised by stressing its main pillars, such as verified destruction of CW stockpiles and destruction/conversion of CW production facilities (CWPFs), verified non-production of CW by the chemical industries, assistance and protection), and international cooperation. The CWC ́s leading principle in defining the CW (protecting it generally agai...

Abstract We present several strategies for increasing the output laser power of near-diffraction limited continuous-wave Alexandrite lasers pumped by fibre-coupled red diodes. Laser mode size control using a convex mirror with varying thermal lens is shown to be an efficient method generating record levels from diode-pumped laser. 8.6 W obtained $$M^{2}&lt;1.1$$ <mml:math xmlns:mml="http://www....

This paper develops a 24 GHz band FM-CW radar system to detect closed multiple targets in a small displacement environment, and its performance is analyzed by computer simulation. The FM-CW radar system uses a differential detection method for removing any signals from background objects and uses a tunable FIR filtering in signal processing for detecting multiple targets. The differential detec...

Although non-CG methylations are abundant in several mammalian cell types, their biological significance is sparsely characterized. We gathered 51 human and mouse DNA methylomes from brain neurons, embryonic stem cells and induced pluripotent stem cells, primordial germ cells and oocytes. We utilized an unbiased sub-motif prediction method and reported CW as the representative non-CG methylatio...