Fan-out elements recorded as volume holograms: optimized recording conditions

Volume Holograms

White·light Reconstruction of Color Images from Black·and· White Volume Holograms Recorded on Sheet Film

starting point for a detailed study of the efficiency and the image resolution of holograms. In color holography and other applications utilizing multiple exposures with different sets of beams, often of different wavelength, the reconstruction may be degraded by the presence of spurious images due to the coupling of each reconstructing beam with each independent hologram encoded on the film pl...

Control of volume holograms

Received May 9, 1991; revised manuscript received February 14, 1992; accepted February 25, 1992 The mismatch in the number of degrees of freedom supported by volume holograms and the boundary fields that control them limits the dynamic range of recorded holograms. For holograms controlled by using fractal sampling grids, the maximum dynamic range falls inversely with the minimum number of expos...

Imaging using volume holograms

Demetri Psaltis, FELLOW SPIE California Institute of Technology Department of Electrical Engineering 1200 East California Boulevard MS 136-93 Pasadena, California 91125 Abstract. We present an overview of imaging systems that incorporate a volume hologram as one of the optical field processing elements in the system. We refer to these systems as volume holographic imaging (VHI) systems. The vol...

Recording of multiple holograms in photopolymer films.

Multiple images were recorded in DuPont HRF-150 photopolymer as transmission holograms by using angle multiplexing. Agreement with Kogelnik's two-wave diffraction theory for phase gratings, the time considerations and its effect on dynamic range, the necessity of a pre-illumination pulse, and good image quality at readout are reported.