Redirecting Incident Light with Mie Resonance-Based Coatings

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Redirecting Incident Light with Mie Resonance-Based Coatings. / Shklyaev, Alexander A.; Utkin, Dmitrii E.; Zheng, Zhu et al.

In: Photonics, Vol. 10, No. 11, 1286, 11.2023.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{97e2c99cb2c541c2a8781feff8cf0522,

title = "Redirecting Incident Light with Mie Resonance-Based Coatings",

abstract = "The efficiency of thin film photoelectric devices can be improved by redirecting incident electromagnetic radiation along their surface layers. Redirection can be achieved using antireflection coatings made of subwavelength dielectric particle arrays. In this study, we fabricate such coatings, consisting of Ge particles on quartz glass substrates via solid-state dewetting, transforming thin Ge films into compact particles. Using optically transparent substrates, we measure reflection and transmission spectra and determine absorption spectra, showing that substrates coated with Ge particles absorb much more strongly than substrates coated with continuous Ge films. The spectra obtained using objective lenses with different aperture angles indicate that scattered radiation is predominantly directed at glancing angles to the substrate surface. The lateral propagation of scattered radiation is the result of destructive interference, which suppresses both reflected and transmitted radiation.",

keywords = "Ge on silica glass, Mie resonances, antireflection coatings, scattered light propagation, solid-state dewetting",

author = "Shklyaev, {Alexander A.} and Utkin, {Dmitrii E.} and Zhu Zheng and Tsarev, {Andrei V.}",

note = "The work is supported by the Ministry of Science and Higher Education of the Russian Federation (project 075-15-2020-797 (13.1902.21.0024)).",

year = "2023",

month = nov,

doi = "10.3390/photonics10111286",

language = "English",

volume = "10",

journal = "Photonics",

issn = "2304-6732",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "11",

}

RIS

TY - JOUR

T1 - Redirecting Incident Light with Mie Resonance-Based Coatings

AU - Shklyaev, Alexander A.

AU - Utkin, Dmitrii E.

AU - Zheng, Zhu

AU - Tsarev, Andrei V.

N1 - The work is supported by the Ministry of Science and Higher Education of the Russian Federation (project 075-15-2020-797 (13.1902.21.0024)).

PY - 2023/11

Y1 - 2023/11

N2 - The efficiency of thin film photoelectric devices can be improved by redirecting incident electromagnetic radiation along their surface layers. Redirection can be achieved using antireflection coatings made of subwavelength dielectric particle arrays. In this study, we fabricate such coatings, consisting of Ge particles on quartz glass substrates via solid-state dewetting, transforming thin Ge films into compact particles. Using optically transparent substrates, we measure reflection and transmission spectra and determine absorption spectra, showing that substrates coated with Ge particles absorb much more strongly than substrates coated with continuous Ge films. The spectra obtained using objective lenses with different aperture angles indicate that scattered radiation is predominantly directed at glancing angles to the substrate surface. The lateral propagation of scattered radiation is the result of destructive interference, which suppresses both reflected and transmitted radiation.

AB - The efficiency of thin film photoelectric devices can be improved by redirecting incident electromagnetic radiation along their surface layers. Redirection can be achieved using antireflection coatings made of subwavelength dielectric particle arrays. In this study, we fabricate such coatings, consisting of Ge particles on quartz glass substrates via solid-state dewetting, transforming thin Ge films into compact particles. Using optically transparent substrates, we measure reflection and transmission spectra and determine absorption spectra, showing that substrates coated with Ge particles absorb much more strongly than substrates coated with continuous Ge films. The spectra obtained using objective lenses with different aperture angles indicate that scattered radiation is predominantly directed at glancing angles to the substrate surface. The lateral propagation of scattered radiation is the result of destructive interference, which suppresses both reflected and transmitted radiation.

KW - Ge on silica glass

KW - Mie resonances

KW - antireflection coatings

KW - scattered light propagation

KW - solid-state dewetting

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85178143217&origin=inward&txGid=2b65332a734b974c851ece2a7269bd91

UR - https://www.mendeley.com/catalogue/595c453b-db1b-3fda-bc85-7a511ec13d80/

U2 - 10.3390/photonics10111286

DO - 10.3390/photonics10111286

M3 - Article

VL - 10

JO - Photonics

JF - Photonics

SN - 2304-6732

IS - 11

M1 - 1286

ER -

ID: 59336137