RESONANT MICROCAVITIES

摘要

A condensed matter structure (10) includes a substrate (12) having a resonant microcavity (11) formed by reflectors (14, 15), having a reflectivity R, arranged relative to an optically-active material (16) to form a cavity. The optically-active material (16) has a thickness L, an optical emission line centered at a wavelength lambda c, and an optical absorption coefficient alpha 0 at lambda c. The magnitude of the absorption ( alpha 0L) at lambda c by the optically-active material (16) is greater than the probability (1-R) that an electromagnetic field having an energy of lambda c exits microcavity (11) and thereby results in a strong light-matter interaction between the optically-active material (16) and the electromagnetic field confined in the microcavity (11).