The Flaming Arc Lamp

Optical pumping of helium with arc lamp excited LNA lasers

2014 We have developed a compact and relatively inexpensive laser source at 03BB =1.083 03BCm, suitable for optical pumping in helium. The laser is made of an LNA crystal transversely pumped by krypton arc lamps. A cw power of 800 mW has been achieved at 1.083 03BCm with a 3 GHz bandwidth. A 66 % nuclear polarization has been obtained in a 3He gas. Revue Phys. Appl. 24 (1989) 827-831 AOÛT 1989,

Flaming Mame.

Flaming on YouTube

Flaming is defined as " displaying hostility by insulting, swearing or using otherwise offensive language. " It seems to be common in comments on the video sharing website YouTube. In this explorative study, flaming on YouTube was studied using surveys among YouTube users. Three general conclusions were drawn. First, flaming is indeed very common on YouTube, although many users say not to flame...

Breakthrough in the understanding of flaming wildfires.

In this article, I give an overview of the recent contribution of Finney et al. (1) to our understanding of how wildfires spread by providing its scientific context and also by putting forward the possible impact on the field. The rise of humanity was intimately bound to fire. Humans first observed flames when fleeing wildland fires, the natural version of the phenomenon that would then become ...

High-Power 365 nm UV LED Mercury Arc Lamp Replacement for Photochemistry and Chemical Photolithography

Ultraviolet light emitting diodes (UV LEDs) have become widespread in chemical research as highly efficient light sources for photochemistry and photopolymerization. However, in more complex experimental setups requiring highly concentrated light and highly spatially resolved patterning of the light, high-pressure mercury arc lamps are still widely used because they emit intense UV light from a...