Optical spectroscopy of rare-earth ions doped KY(WO4)2 thin films

KY(WO4)2 thin films doped with Dy3+, Tb3+, Yb3+, were grown onto KY(WO4)2 substrates using liquid-phase epitaxy. Spectroscopic investigations of the grown layers were performed. Obtained results were compared with spectra given for bulk crystals. Upconversion experiments after direct Yb3+ excitation in Dy3+-Yb3+ and Tb3+-Yb3+ codoped layers will be also presented

Lattice matching and microstructuring of Gd3+, Lu3+ co-doped KY(WO4)2:Tm3+ channel waveguide lasers

Lattice-matched KY(WO4)2:Gd3+,Lu3+,Tm3+ layers with a thickness of 6 μm have been grown onto pure KY(WO4)2 substrates. Channel waveguides of 7.5 μm to 12.5 μm width have been microstructured to a depth of 1.5 μm using Ar+ beam milling. Laser experiments with buttcoupled mirrors demonstrate laser oscillation near 1844 nm while pumping at 792 nm

Issues in Christian Encounters with Yoga: Exploring 3HO/Kundalini Yoga

The paper begins by drawing out current issues that have been raised by critics concerning the contemporary practice of Hindu postural types of yoga in western and specifically western Christian contexts, with some illustrative reference to contemporary movements and schools, especially to Bikram Yoga. These are: cultural misappropriation; commodification; lack of moral pre-requisites; narcissistic attachment to bodily effects; occult influences; and doctrinal differences. The paper then explores specific aspects of the theory and practice of 3HO/Kundalini Yoga (3HO/KY) by Christians in light of these possible issues, showing how this tradition of Kundalini Yoga seems to skirt or side-step most of them, simply by the way that it locates and grounds itself in Sikhism. The substantial concerns for Christians practicing 3H0/KY seem related to issues surrounding doctrinal compatibility and religious syncretism—criticisms that have been raised also by some Sikhs against 3HO/KY itself

Imagining redemption

Title: Imagining redemption. Author: Kelsey, David H Imagining redemption 108 p. Publisher: Louisville, KY : Westminster John Knox Pr, 2005

A captive voice: the liberation of preaching

Reviewed Book: Buttrick, David G. A captive voice: the liberation of preaching. Louisville, Ky: Westminster/John Knox Press, 1994

Preaching the Topical Sermon

Reviewed Book: Allen, Ronald J. (Ronald James). Preaching the Topical Sermon. Louisville, Ky: Westminster/John Knox Press, 1992

Slaying the dragon: mythmaking in the biblical tradition

Reviewed Book: Batto, Bernard F. Slaying the dragon: mythmaking in the biblical tradition. Louisville, Ky: Westminster/John Knox Press, 1992