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Multi-wavelength study of light transmitted through a single marine centric diatom
Multi-wavelength study of light transmitted through a single marine centric diatom
- Source :
- Optics express 18 (2010): 12203–12212., info:cnr-pdr/source/autori:De Tommasi E, Rea I, Mocella V, Moretti L, De Stefano M, Rendina I, De Stefano L/titolo:Multi-wavelength study of light transmitted through a single marine centric diatom/doi:/rivista:Optics express/anno:2010/pagina_da:12203/pagina_a:12212/intervallo_pagine:12203–12212/volume:18
- Publication Year :
- 2010
-
Abstract
- The characterization of partially coherent light transmission by micrometer sized valves of marine diatoms is an interesting optical challenge and, from the biological point of view, is of outmost relevance in order to understand evolution mechanisms of such organisms. In the present work, we have studied the transmission of light coming from a monochromator through single valves of Coscinodiscus wailesii diatoms. Incoming light is confined by the regular pore pattern of the diatom surface into a spot of few microns, its dimensions depending on wavelength. The effect is ascribed to the superposition of wavefronts diffracted by the pores' edges. Numerical simulations help to demonstrate how this effect is not present in the ultraviolet region of the light spectrum, showing one of the possible evolutionary advantages represented by the regular pores patterns of the valves. © 2010 Optical Society of America.
- Subjects :
- Diffraction
Models, Molecular
Materials science
Light
medicine.disease_cause
law.invention
Micrometre
Superposition principle
Optics
law
Evolution mechanism
medicine
Computer Simulation
Seawater
Monochromator
Wavefront
Diatoms
biology
business.industry
Marine diatoms, Multi-wavelength study
biology.organism_classification
Atomic and Molecular Physics, and Optics
Wavelength
Diatom
Incoming light, Light spectrum
business
Ultraviolet
Subjects
Details
- ISSN :
- 10944087
- Volume :
- 18
- Issue :
- 12
- Database :
- OpenAIRE
- Journal :
- Optics express
- Accession number :
- edsair.doi.dedup.....17aca5660cc990fec84ffb896ed5e127