| 摘要 |
<p>The invention concerns a network structure using high dispersion volume holography and applicable for instance to pulse compressing and stretching devices. The inventive network structure comprises a transmission volume holographic network (23, 33) produced on a reflecting support (24, 34). Said network consists in strata inclined relative to the support plane, the angle of inclination (ζ) of the strata defined with respect the normal relative to the support and the pitch of the strata (Μ) being selected such that a light beam of specific average wavelength (μ0), incident on said structure with a given angle of incidence (υ), should pass a first time through the network, be reflected by the reflecting support, pass a second time through the network and be diffracted by the network only on one of said passages.</p> |
