Son, JY Shestak, SA Kim, SK Epikhin, V Chun, YS 2024-01-21T17:08:47Z 2024-01-21T17:08:47Z 2021-09-03 1998-05 0374-4884 https://pubs.kist.re.kr/handle/201004/143110 Many trapezoidally shaped AOMs are joined together to make a multichannel AOM having an aperture length equal to the sum of those of trapezoidally shaped AOMs. A trapezoidally shaped AOM has to have a definite angle between the long parallel and the two non-parallel edges to convert a longitudinal wave propagating normal to the two parallel edges to a shear wave travelling parallel to the edges, and vice versa, with maximum efficiency. For che case of an AOM made from TeO2, a acoustic-mode conversion efficiency of more than 90% was obtained when the angle was 82.33 degrees The performance of the multichannel AOM was tested by combining 6 TeO2 AOMs together with a gap between them of 300 mu m. The holographic fringe data was segmented into 6 equal parts and then inputted to the corresponding AOM. The holographic images were reconstructed by periodical illumination of the multichannel AOM with a green (lambda=0.5145 mu m) pulsed laser beam. The good-quality reconstructed images indicated that the multichannel AOM was working properly. English KOREAN PHYSICAL SOC A multichannel AOM for a holographic video system Article 1 JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.32, no.5, pp.681 - 685 JOURNAL OF THE KOREAN PHYSICAL SOCIETY 32 5 681 685 scie scopus 000073671200012 2-s2.0-0032335637 Physics, Multidisciplinary Physics Article AOM Holographic Video System Multichannel