TY - JOUR
T1 - New Self-Organization Route to Tunable Narrowband Optical Filters and Polarizers Demonstrated with ZnO–ZnWO4 Eutectic Composite
AU - Osewski, Paweł
AU - Belardini, Alessandro
AU - Centini, Marco
AU - Valagiannopoulos, Constantinos
AU - Leahu, Grigore
AU - Li Voti, Roberto
AU - Tomczyk, Monika
AU - Alù, Andrea
AU - Pawlak, Dorota A.
AU - Sibilia, Concita
N1 - Funding Information:
The authors thank the HARMONIA Project (2013/10/M/ST5/00650) from the National Science Centre and the TEAM/2016-3/29 Grant within the TEAM program of the Foundation for Polish Science co-financed by the European Union under the European Regional Development Fund. This work was also partially supported by Nazarbayev University Small Grants with project entitled: ?Super transmitters, radiators and lenses via photonic synthetic matter? (No. 17095) and Nazarbayev University ORAU Grant entitled: ?Structured light for nonlinear and topological photonics? (No. 20162031). Funding from MES RK state-targeted program BR05236454 is also acknowledged. A.A. and C.V. were partially supported by the National Science Foundation, the Simons Foundation, and the Department of Defense. The authors thank Dr. Ryszard Diduszko from ITME for the X-ray measurements.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - Electromagnetic fields interacting with microscopic structural features in a composite material provide emerging optical properties that surpass those offered by the individual components. However, composite materials can be generally lossy due to the scattering effects induced by inhomogeneities at the interfaces between different compounds. To overcome such problems, complicated and costly manufacturing procedures, such as top-down approaches, are generally required. In contrast, here ZnO–ZnWO4 eutectic self-organized composites grown by the micropulling method are considered, displaying sharp and strongly polarized transmission at 397 nm. Such an optical response is notable because it is not observed in either ZnO or ZnWO4 single crystals. The optical response is due to the refractive index matching of the two constituents, which self-organize into ordered structures via a micropulling down method. The optical behavior reported here can directly lead to applications, such as tunable narrowband filters with bandpass of 3 nm and polarizers, paving the way to a new self-organization route for manufacturing optical components.
AB - Electromagnetic fields interacting with microscopic structural features in a composite material provide emerging optical properties that surpass those offered by the individual components. However, composite materials can be generally lossy due to the scattering effects induced by inhomogeneities at the interfaces between different compounds. To overcome such problems, complicated and costly manufacturing procedures, such as top-down approaches, are generally required. In contrast, here ZnO–ZnWO4 eutectic self-organized composites grown by the micropulling method are considered, displaying sharp and strongly polarized transmission at 397 nm. Such an optical response is notable because it is not observed in either ZnO or ZnWO4 single crystals. The optical response is due to the refractive index matching of the two constituents, which self-organize into ordered structures via a micropulling down method. The optical behavior reported here can directly lead to applications, such as tunable narrowband filters with bandpass of 3 nm and polarizers, paving the way to a new self-organization route for manufacturing optical components.
KW - eutectics
KW - metamaterials
KW - optical filters
KW - ZnO
KW - ZnWO
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U2 - 10.1002/adom.201901617
DO - 10.1002/adom.201901617
M3 - Article
AN - SCOPUS:85078035788
VL - 8
JO - Advanced Optical Materials
JF - Advanced Optical Materials
SN - 2195-1071
IS - 7
M1 - 1901617
ER -