Fabry-perot multilayers for enhancing the diffraction efficiency of ion-implanted gratings.
Enhancement of the free-space diffraction efficiency of gratings made by titanium-ion implantation is demonstrated both theoretically and experimentally. Indeed, by insertion of a grating into a multilayer dielectric Fabry-Perot cavity, the diffraction efficiency can be increased to as much as 24 times that of a single grating. The sensitivity of the diffraction efficiency to the optogeometrical parameters of the grating or of the Fabry-Perot cavity is discussed. Moreover, a process for performance of a phase grating inside a Fabry-Perot cavity is described, and experimental results concerning efficiency measurements are compared with computed values for various grating periods.
Escoubas
L
L
Flory
F O
FO
Lemarchand
F
F
Drouard
E
E
Roux
L
L
Tisserand
S
S
Albrand
G
G