Approximate bandwidth and diffraction efficiency in thick holograms

Abstract

Articles you may be interested inEffect of recording condition on the diffraction efficiency of magnetic hologram with magnetic garnet films

Understanding Diffraction in Volume Gratings and Holograms

“…These ideas, in turn, extend back to Darwin's 1914 work on X-ray diffraction [13]. Early attempts at an analytical formulation of diffraction in the planar grating in terms of Fresnel reflection are also due to Ludman [14] and Heifetz, Shen and Shariar [15].…”

“…We can then use (14) and (15) to derive identical uncoupled second order differential equations for R and S:…”

“…Then, as before, we can solve equations (14) and (26) to arrive at expressions for the diffractive efficiency 1 . For the transmission grating the result is…”

Realizing high photovoltaic efficiency with parallel multijunction solar cells based on spectrum-splitting and -concentrating diffractive optical element

“…[15] Holographic systems, which can split and concentrate the sunlight by volume phase modulation of the wave front, have also been proposed by researchers. [16][17][18][19] The holographic optical element is implemented by recording the interference field of laser beams. However, a high diffractive efficiency over wide spectral regions is hard to achieve, and doubly exposed holograms, which extend the band width, restrain the effectiveness and replication of the device.…”

“…However, a high diffractive efficiency over wide spectral regions is hard to achieve, and doubly exposed holograms, which extend the band width, restrain the effectiveness and replication of the device. [16][17][18][19][20] Recently, a single prismatic structure, which splits and concentrates light based on the dispersive behavior of the employed material, has been designed and fabricated, and its optical properties were discussed. The optical efficiencies and spectrum-splitting performance of the structure still need to be improved.…”