| 摘要 |
<p>Refractive index modifications are written in silica glass using a combination of ion-exchange and masking techniques. The index increase in the irradiated regions of the glass is caused by the formation of silver nanocrystals under the influence of an ion beam. The index increase is highly dispersive. Self-assembled colloidal masks or lithographically defined masks are used to define micropatterns with pre-defined shape, size and symmetry. These highly dispersive metallo-dielectric micropattens can find applications in a variety of (optically switchable) optical devices, including gratings, switches, multiplexers or photonic crystals. Electronic or magnetic devices including regions of nanocrystalline aggregates may also be formed in a similar way.</p> |
