Abstract
A new type of volume holographic grating lenses for converting a plane wave to a lateral-spread spherical wave and vice versa, has been designed. The lenses have the advantages of small volume, light weight, high wavelength selectivity and simplicity of fabrication. Grating pitch and grating vector of the grating lenses which derived from intensity distribution of wavefront interfering field of a plane wave and a spherical wave are discussed. And basis is provided to design and fabricate volume holographic grating lenses devices. On the basis of two beams coupled-wave theory, coupled wave differential equations and diffraction efficiency are derived. The practical applications of the lenses are demonstrated.
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