Universität zu Köln

Mischok, Andreas ORCID: 0000-0003-4725-7404, Siegmund, Bernhard ORCID: 0000-0003-3212-3710, Le Roux, Florian, Hillebrandt, Sabina ORCID: 0000-0002-2628-385X, Vandewal, Koen ORCID: 0000-0001-5471-383X and Gather, Malte C. ORCID: 0000-0002-4857-5562 (2024). Breaking the angular dispersion limit in thin film optics by ultra-strong light-matter coupling. Nature Communications, 15 (1). pp. 1-10. Springer Nature. ISSN 2041-1723

PDF s41467-024-54623-1.pdf Bereitstellung unter der CC-Lizenz: Creative Commons Attribution. Download (3MB)

Abstract

[Artikel-Nr.: 10529] Thin film interference is integral to modern photonics, e.g., allowing for precise design of high performance optical filters, photovoltaics and light-emitting devices. However, interference inevitably leads to a generally undesired change of spectral characteristics with angle. Here, we introduce a strategy to overcome this fundamental limit in optics by utilizing and tuning the exciton-polariton modes arising in ultra-strongly coupled microcavities. We demonstrate optical filters with narrow pass bands that shift by less than their half width (< 15 nm) even at extreme angles. By expanding this strategy to strong coupling with the photonic sidebands of dielectric multilayer stacks, we also obtain filters with high extinction ratios and up to 98% peak transmission. Finally, we apply this approach in flexible filters, organic photodiodes, and polarization-sensitive filtering. These results illustrate how strong coupling provides additional degrees of freedom in thin film optics that will enable exciting new applications in micro-optics, sensing, and biophotonics.

Item Type:	Article
Creators:	Creators Email ORCID ORCID Put Code Mischok, Andreas UNSPECIFIED https://orcid.org/0000-0003-4725-7404 UNSPECIFIED Siegmund, Bernhard UNSPECIFIED https://orcid.org/0000-0003-3212-3710 UNSPECIFIED Le Roux, Florian UNSPECIFIED UNSPECIFIED UNSPECIFIED Hillebrandt, Sabina UNSPECIFIED https://orcid.org/0000-0002-2628-385X UNSPECIFIED Vandewal, Koen UNSPECIFIED https://orcid.org/0000-0001-5471-383X UNSPECIFIED Gather, Malte C. UNSPECIFIED https://orcid.org/0000-0002-4857-5562 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-814863
Identification Number:	10.1038/s41467-024-54623-1
Journal or Publication Title:	Nature Communications
Volume:	15
Number:	1
Page Range:	pp. 1-10
Number of Pages:	10
Date:	3 December 2024
Publisher:	Springer Nature
ISSN:	2041-1723
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Biochemistry
Subjects:	Chemistry and allied sciences Life sciences
['eprint_fieldname_oa_funders' not defined]:	Publikationsfonds UzK
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/81486