Parametric Mössbauer radiation source

Generation of tuneable 589nm radiation as a Na guide star source using an optical parametric amplifier.

We describe a 5.5W 589 nm source based on a passively mode-locked Nd:YVO4 laser and a multi-stage Lithium Triborate optical parametric amplifier seeded by a tuneable semiconductor laser. We show this system can produce rapidly tuneable, transform-limited pulses in near diffraction-limited beams at 589 nm, useful for Na guide star applications. The attraction of this scheme is that it can be ass...

The TPLUS project : a table - top tunable parametric UV radiation source

We present the project of a parametric radiation source, the Tunable Parametric Laboratory Ultraviolet Source (TPLUS). We aim at building a prototype of such a source with an electron gun of moderate energy, 100 keV, interacting with a periodic multilayer within a high vacuum experiment chamber. The objective of this table-top facility is to provide users with a cost-effective, simple-handling ...

Parametric X-radiation for Bragg Geomery

A Parametric Approach to Extended Source Localization

Point source modeling is frequently used in m a y processing. Although this assumption is good for many applications, thm are some situations where point source modeling is unrealistic. For instance, in a multi-beam echo sounder, a reflected signal from the scs floor appears as a spatially extended source. In this paper we investigate distributed sources. The approach is based on the a ~ s u m ...

Statistics of radiation at Josephson parametric resonance

Motivated by recent experiments, we study theoretically the full counting statistics of radiation emitted below the threshold of parametric resonance in a Josephson-junction circuit. In contrast to most optical systems, a significant part of emitted radiation can be collected and converted to an output signal. This permits studying the correlations of the radiation. To quantify the correlations...