Projects per year
Abstract
Spaceplates have emerged in the context of nonlocal metasurfaces, enabling the compression of optical systems by minimizing the required empty space between their components. In this work, we design and analyze spaceplates that support resonances with opposite symmetries, operating under the so-called Huygens’ condition. Using the temporal coupled-mode theory, we demonstrate that the spatial compression provided by Huygens’ spaceplates is twice that of conventional single-resonance counterparts. Additionally, they can support broader operational bandwidths and numerical apertures, facilitating the reduction of chromatic aberrations. Moreover, Huygens’ spaceplates maintain nearly full transparency over a wide frequency and angular range, allowing their straightforward cascading for multi-frequency broadband operation. Finally, we propose a physical implementation of a Huygens’ spaceplate for optical frequencies based on a photonic crystal slab geometry.
Original language | English |
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Article number | 30 |
Number of pages | 7 |
Journal | npj Nanophotonics |
Volume | 1 |
DOIs | |
Publication status | Published - 2024 |
MoE publication type | A1 Journal article-refereed |
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Dive into the research topics of 'Broadband transparent Huygens' spaceplates'. Together they form a unique fingerprint.Projects
- 2 Active
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DeCAP: Designer Composites with Axionic Properties
Asadchy, V. (Principal investigator), Safaei Jazi, S. (Project Member) & Amrahi Iniolya, B. (Project Member)
01/09/2023 → 31/08/2027
Project: Academy of Finland: Other research funding
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PREIN 2: Photonics Research and Innovation
Naukkarinen, O. (Principal investigator)
01/09/2022 → 31/12/2026
Project: Academy of Finland: Other research funding
Equipment
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Aalto Electronics-ICT
Ryynänen, J. (Manager)
Department of Electronics and NanoengineeringFacility/equipment: Facility