Macquarie University researchers have demonstrated a technique to dramatically narrow the linewidth of a laser beam by a factor of over ten thousand—a discovery that could revolutionize quantum ...

Using a non-luminescent crystal of rock-salt, a quartz spectrograph with a fine slit, and the 2536· 5 A resonance radiations of mercury arc as exciter, the Raman effect in rock-salt has been studied.

THE thermal agitation of the atoms in solids results, as was shown by Raman (NATURE, Jan. 12, 1922, and Jan. 6, 1923), in a noticeable blue opalescence in the interior of such transparent crystals as ...

Every year on February 28, India commemorates National Science Day, a momentous occasion dedicated to honoring the pioneering ...