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Bachelor's Thesis
Author of thesis: Bc. Vojtěch Frühbauer
Acad. year: 2024/2025
Supervisor: Ing. Petr Viewegh, Ph.D.
Reviewer: Ing. Michal Kvapil, Ph.D.
This bachelor’s thesis focuses on the design and optimization of silicon carbide (SiC) optical metasurfaces for quantum applications, particularly for the collimation of emission from single-photon emitters (SPEs). The work combines a literature review with numerical and semi-analytical simulations to propose a metasurface capable of directional emission and enhanced efficiency of SiC-based color center SPEs. The 4H-SiC polytype was used due to its unique optoelectronic and mechanical properties, making it a promising platform for integrated quantum photonics. Libraries of nanoantennas were created and optimized using FDTD and RCWA simulations. The final metasurface was fabricated using electron-beam lithography and reactive ion etching and characterized by confocal and digital holographic microscopy. The results confirm the functionality of the design and demonstrate the potential of SiC metasurfaces for integrated quantum-optical devices with embedded SPEs.
optical metasurface, dielectric metasurface, single-photon emitter, silicon carbide, quantum optics, metasurface design
Date of defence
12.06.2025
Result of the defence
Defended (thesis was successfully defended)
Grading
A
Process of defence
Po otázkách oponenta bylo dále diskutováno: Experimentálně (holograficky) změřený fázový profil Optimalizace tvaru a polohy navržených nanostruktur Uspořádání měřící aparatury Možnosti realizace jednofotonových zdrojů Student na otázky odpověděl.
Language of thesis
Czech
Faculty
Fakulta strojního inženýrství
Department
Institute of Physical Engineering
Study programme
Physical Engineering and Nanotechnology (B-FIN-P)
Composition of Committee
prof. RNDr. Tomáš Šikola, CSc. (předseda) prof. RNDr. Jiří Spousta, Ph.D. (místopředseda) prof. RNDr. Radim Chmelík, Ph.D. (člen) prof. RNDr. Petr Dub, CSc. (člen) prof. Mgr. Miroslav Černý, Ph.D. (člen) prof. Ing. Jan Čechal, Ph.D. (člen) prof. Ing. Miroslav Kolíbal, Ph.D. (člen) doc. Mgr. Vlastimil Křápek, Ph.D. (člen) doc. Ing. Stanislav Průša, Ph.D. (člen) doc. Ing. Miroslav Bartošík, Ph.D. (člen) doc. Ing. Jakub Zlámal, Ph.D. (člen) doc. Ing. Radek Kalousek, Ph.D. (člen) RNDr. Antonín Fejfar, CSc. (člen)
Supervisor’s reportIng. Petr Viewegh, Ph.D.
Grade proposed by supervisor: A
Reviewer’s reportIng. Michal Kvapil, Ph.D.
Grade proposed by reviewer: A
Responsibility: Mgr. et Mgr. Hana Odstrčilová