Topic: alternative therapy for shingles

Environmental sensing: utilizing a material with a helical pitch highly delicate to temperature, electric area, magnetic area, or mechanical strain, coloration shift of the output laser offers a simple, direct measurement of environmental conditions. Jacobs; Cerqua; Marshall; Schmid; Guardalben; Skerrett (1988). "Liquid-crystal laser optics: design, fabrication, and performance". Kogelnik, H.; C.V. Shank (1971). "Stimulated emission in a periodic structure". Applied Physics Letters. 18 (4): 152....