Metamaterials: Critique and Alternatives,by B.A. Munk

Relativistic electrons undergoing centripetal acceleration in a synchrotron emit a highly collimated forward cone of continuous radiation. The continuum extends from the extreme ultraviolet to the radiofrequency region for electrons of GeV energies and is very suitable for absorption spectroscopy in the region of the ultraviolet extending from a few tens of ågströms to 2000 Å. This paper discusses some properties of synchrotron radiation of interest to spectroscopists and some experimental difficulties associated with ultraviolet spectroscopy. Examples we given of ultraviolet spectra of free atoms and molecules and also of solids obtained recently with synchrotron radiation.     

Comment on Lockerbie, N.A.: Gen. Rel. Grav. 36, 593 (2004)

We comment on the paper “ISLAND – Inverse-Square-Law Acceleration Measurement using Inertial Drift,” by Lockerbie, N.A.: Gen. Rel. Grav. 36, 593–600 (2004).