Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Self-Hybridized Polaritonic Emission from Layered Perovskites   Light-matter coupling in excitonic materials has been the subject of intense
investigation due to emergence of new excitonic materials. Two-dimensional
layered hybrid organic/inorganic perovskites (2D HOIPs) support strongly bound
excitons at room-temperatures with some of the highest oscillator strengths and
electric loss tangents among the known excitonic materials. Here, we report
strong light-matter coupling in Ruddlesden-Popper phase 2D-HOIPs crystals
without the necessity of an external cavity. We report concurrent occurrence of
multiple-orders of hybrid light-matter states via both reflectance and
luminescence spectroscopy in thick (> 100 nm) crystals and near-unity
absorption in thin (< 20 nm) crystals. We observe resonances with quality
factors > 250 in hybridized exciton-polaritons and identify a linear
correlation between exciton-polariton mode splitting and extinction coefficient
of the various 2D-HOIPs. Our work opens the door to studying polariton dynamics
in self-hybridized and open cavity systems with broad applications in
optoelectronics and photochemistry.

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The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
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The categories of this paper are: econ
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The categories of this paper are: acc-phys
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: nlin
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The categories of this paper are: supr-con
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The categories of this paper are: hep-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: eess
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The categories of this paper are: chem-ph
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The categories of this paper are: mtrl-th