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Phyllotactic Arrangements of Optical Elements
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SYSNO ASEP 0478006 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Phyllotactic Arrangements of Optical Elements Author(s) Horáček, Miroslav (UPT-D) RID, ORCID, SAI
Meluzín, Petr (UPT-D) RID, ORCID, SAI
Krátký, Stanislav (UPT-D) RID, ORCID, SAI
Matějka, Milan (UPT-D) RID, ORCID, SAI
Kolařík, Vladimír (UPT-D) RID, ORCID, SAINumber of authors 5 Article number 102331G Source Title Holography: Advances and Modern Trends V. (Proceedings of SPIE 10233). - Bellingham : SPIE, 2017 - ISSN 0277-786X - ISBN 978-1-5106-0967-9 Series Proceedings of SPIE Number of pages 9 s. Publication form Print - P Action Holography: Advances and Modern Trends /5./ Event date 24.04.2017 - 27.04.2017 VEvent location Prague Country CZ - Czech Republic Event type WRD Language eng - English Country US - United States Keywords synthetic holography ; diffraction grating ; nano patterning ; e-beam writer ; self similarity ; phyllotactic model Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering OECD category Nano-processes (applications on nano-scale) R&D Projects TE01020233 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) TG03010046 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) LO1212 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UPT-D - RVO:68081731 UT WOS 000407472500048 EID SCOPUS 85021821361 DOI 10.1117/12.2265835 Annotation Phyllotaxy studies arrangements of biological entities, e.g. a placement of seeds in the flower head. Vogel (1979) presented a phyllotactic model based on series of seeds ordered along a primary spiral. This arrangement allows each seed to occupy the same area within a circular flower head. Recently, a similar arrangement of diffraction primitives forming a planar relief diffractive structure was presented. The planar relief structure was used for benchmarking and testing purposes of the electron beam writer patterning process. This contribution presents the analysis of local periods and azimuths of optical phyllotactic arrangements. Two kinds of network characteristic triangles are introduced. If the discussed planar structure has appropriate size and density, diffraction of the incoming light creates characteristic a phyllotactic diffraction pattern. Algorithms enabling the analysis of such behavior were developed and they were validated by fabricated samples of relief structures. Combined and higher diffraction orders are also analyzed. Different approaches enabling the creation of phyllotactic diffractive patterns are proposed. E-beam lithography is a flexible technology for various diffraction gratings origination. The e-beam patterning typically allows for the creation of optical diffraction gratings in the first diffraction order. Nevertheless, this technology enables also more complex grating to be prepared, e.g. blazed gratings and zero order gratings. Moreover, the mentioned kinds of gratings can be combined within one planar relief structure. The practical part of the presented work deals with the nano patterning of such structures by using two different types of the e-beam pattern generators. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2018
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