The Retention of Light on a Glass Surface

We suggest a novel technique to store a probe laser beam on a glass surface. The coherent superposition of two Gaussian cw-lasers beams of different brightnesses incident on the same surface can inhibit the surface’s reflectivity to the weak probe laser beam at several angles of incidence near the Brewster Angle (BA). We use diode lasers with a long temporal coherence. The interaction between the probe laser and the surface dipoles is analyzed through the parallel component of the probe’s reflectance, which has a parabolic variation near BA. The coherent superposition between probe and coupler modulates the parabola with a sinusoidal interference pattern, having minima and maxima of reflectivity evenly spaced. The superposition on the glass surface creates polarizable an array of aligned surface dipoles. Our results indicate that at certain angles of incidence the reflectivity of the glass surface to the weak probe can efficiently enhance (i.e. at 58.24 deg. for 0V), while at 0.3 and 1.3V, the reflectivity is strongly diminished, and the energy of the probe is retained on the surface. This study can help the microelectronics industry in developing silicon nanofabrication techniques to meet the urgent demand for computational power and storage of energy in microcircuits.