doi:10.3390/photonics8110465engSevilla, M.Marín-Sáez, J.Chemisana, D.Collados, M.V.Atencia, J.Study of full-color multiplexed transmission holograms of diffusing objects recorded in photopolymer bayfol hxART-2021-126828A wavelength multiplexing procedure for color transmission volume holograms of diffusing objects recorded in Bayfol® HX200 photopolymer is proposed. For the recording, three lasers of 442 nm, 532 nm and 633 nm, and a Spectralon® diffusing object were used for monochromatic and polychromatic calibration. Monochromatic calibration shows that the maximum index modulation obtained for each wavelength was not enough to give 100% efficiency, although the efficiency values achieved in the case of monochromatic recordings with diffusing objects were high, at around 90% for 633 nm and 532 nm recordings, and 60% for 442 nm. The efficiency values obtained for multiplexed holograms were 19.1% for the 442 nm hologram, 25.9% for the 532 nm hologram and 15.2% for the 633 nm.2021http://zaguan.unizar.es/record/15205010.3390/photonics8110465http://zaguan.unizar.es/record/152050oai:zaguan.unizar.es:152050info:eu-repo/grantAgreement/ES/DGA-FES/E44-17Rinfo:eu-repo/grantAgreement/ES/MICINN-AEI/PID2019-108598GB-I00/AEI/10.13039/501100011033info:eu-repo/grantAgreement/ES/MICINN-AEI/PID2019-111536RB-I00/AEI/10.13039/501100011033info:eu-repo/grantAgreement/ES/MICINN-AEI/PID2021-114311RA-I00/AEI/10.13039/501100011033Photonics 8, 11 (2021), 465 [16 pp.]byhttps://creativecommons.org/licenses/by/4.0/deed.esinfo:eu-repo/semantics/openAccess