Adulterant Detection in Peppermint Oil by Means of Holographic Photopolymers Based on Composite Materials with Liquid Crystal

Authors :: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal
Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía
Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías
Miloua, Wafaa
Ortuño, Manuel
Navarro-Fuster, Víctor
Beléndez, Augusto
Pascual, Inmaculada
Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal
Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía
Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías
Miloua, Wafaa
Ortuño, Manuel
Navarro-Fuster, Víctor
Beléndez, Augusto
Pascual, Inmaculada
Publication Year :: 2022
Abstract: Diffraction gratings are recorded in a holographic photopolymer containing nematic liquid crystal and peppermint oil. The presence of the oil modifies the polymerization and the holographic response. The composite containing oil adulterated with triethyl citrate obtains a diffraction efficiency related to the oil’s purity. The results obtained suggest the possibility of developing a holographic chemical analysis method for quality control of raw materials.

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