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We explore the electromagnetic response of the pellicle of selected species of euglenoids. These microorganisms are bounded by a typical surface pellicle formed by S-shaped overlapping bands that resemble a corrugated film. We investigate the role played by this structure in the protection of the cell against UV radiation. By considering the pellicle as a periodically corrugated film of finite thickness, we applied the C-method to compute the reflectance spectra. The far-field results revealed reflectance peaks with a Q-factor larger than 103 in the UV region for all the illumination conditions investigated. The resonant behavior responsible for this enhancement has also been illustrated by near-field computations performed by a photonic simulation method. These results confirm that the corrugated pellicle of euglenoids shields the cell from harmful UV radiation and open up new possibilities for the design of highly UV-reflective surfaces. © 2017 Optical Society of America.


Documento: Artículo
Título:Optical function of the finite-thickness corrugated pellicle of euglenoids
Autor:Inchaussandague, M.E.; Skigin, D.C.; Dolinko, A.E.
Filiación:Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Grupo de Electromagnetismo Aplicado, Buenos Aires, Argentina
CONICET-Universidad de Buenos Aires, Instituto de Física de Buenos Aires (IFIBA), Buenos Aires, Argentina
Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental, Laboratorio de Micología, Buenos Aires, Argentina
CONICET-Universidad de Buenos Aires, Instituto de Micología y Botánica (INMIBO), Buenos Aires, Argentina
Palabras clave:Algae; Radiation protection; Reflection; Ultraviolet radiation; Corrugated films; Electromagnetic response; Illumination conditions; Overlapping bands; Reflectance peaks; Reflectance spectrum; Reflective surfaces; Resonant behavior; Protozoa; electromagnetic radiation; Euglena gracilis; Euglenida; radiation response; transmission electron microscopy; ultrastructure; Electromagnetic Radiation; Euglena gracilis; Euglenida; Microscopy, Electron, Transmission
Página de inicio:5112
Página de fin:5120
Título revista:Applied Optics
Título revista abreviado:Appl. Opt.


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---------- APA ----------
Inchaussandague, M.E., Skigin, D.C. & Dolinko, A.E. (2017) . Optical function of the finite-thickness corrugated pellicle of euglenoids. Applied Optics, 56(18), 5112-5120.
---------- CHICAGO ----------
Inchaussandague, M.E., Skigin, D.C., Dolinko, A.E. "Optical function of the finite-thickness corrugated pellicle of euglenoids" . Applied Optics 56, no. 18 (2017) : 5112-5120.
---------- MLA ----------
Inchaussandague, M.E., Skigin, D.C., Dolinko, A.E. "Optical function of the finite-thickness corrugated pellicle of euglenoids" . Applied Optics, vol. 56, no. 18, 2017, pp. 5112-5120.
---------- VANCOUVER ----------
Inchaussandague, M.E., Skigin, D.C., Dolinko, A.E. Optical function of the finite-thickness corrugated pellicle of euglenoids. Appl. Opt. 2017;56(18):5112-5120.