Second harmonic generation circul dichroism in Au coated GaAs-based nanowires

Alessandro Belardini; Joel T. Collins; David C. Hooper; Grigore Leahu; Emilija Petronijevic; Marco Centini; Roberto Li Voti; Teemu Hakkarainen; Eero Koivusalo; Marcelo Rizzo Piton; Soile Soumalainen; Mircea Guina; Ventsislav K. Valev; Concita Sibilia

doi:10.1049/cp.2018.1632

Second harmonic generation circul dichroism in Au coated GaAs-based nanowires

Alessandro Belardini, Joel T. Collins, David C. Hooper, Grigore Leahu, Emilija Petronijevic, Marco Centini, Roberto Li Voti, Teemu Hakkarainen, Eero Koivusalo, Marcelo Rizzo Piton, Soile Soumalainen, Mircea Guina, Ventsislav K. Valev, Concita Sibilia

Fysiikka

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

1 Sitaatiot (Scopus)

Abstrakti

Nanostructures with broken symmetry can interact with circularly polarized light to mimic chiroptical (chiral-optical) effects, usually observable in chiral media. This phenomenon is known as extrinsic chirality. Second harmonic generation (SHG) is extremely sensitive to symmetry breaking, down to a single atomic monolayer and it has been extensively used as a probe of extrinsic chirality. Here we present SHG measurements of GaAs nanowires partially covered with Au, fabricated by a self-catalysed technique. The Au coated GaAs nanowires give rise to a dramatic circular dichroism in the generated second harmonic signal, compared to nanowires without coating.

Alkuperäiskieli	Englanti
Otsikko	20th Italian National Conference on Photonic Technologies (Fotonica 2018)
Kustantaja	IET
ISBN (elektroninen)	978-1-78561-991-5
DOI - pysyväislinkit	https://doi.org/10.1049/cp.2018.1632
Tila	Julkaistu - 2018
OKM-julkaisutyyppi	A4 Artikkeli konferenssijulkaisussa
Tapahtuma	Italian National Conference on Photonic Technologies - Lecce, Italia Kesto: 23 toukok. 2018 → 25 toukok. 2018

Conference

Conference	Italian National Conference on Photonic Technologies
Maa/Alue	Italia
Kaupunki	Lecce
Ajanjakso	23/05/18 → 25/05/18

Julkaisufoorumi-taso

Jufo-taso 1

!!ASJC Scopus subject areas

Electrical and Electronic Engineering

Pääsy asiakirjaan

10.1049/cp.2018.1632

Siteeraa tätä

Belardini, A., Collins, J. T., Hooper, D. C., Leahu, G., Petronijevic, E., Centini, M., Voti, R. L., Hakkarainen, T., Koivusalo, E., Piton, M. R., Soumalainen, S., Guina, M., Valev, V. K., & Sibilia, C. (2018). Second harmonic generation circul dichroism in Au coated GaAs-based nanowires. teoksessa 20th Italian National Conference on Photonic Technologies (Fotonica 2018) IET. https://doi.org/10.1049/cp.2018.1632

@inproceedings{f49747a00e844ad4a7101baf6f866bcf,

title = "Second harmonic generation circul dichroism in Au coated GaAs-based nanowires",

abstract = "Nanostructures with broken symmetry can interact with circularly polarized light to mimic chiroptical (chiral-optical) effects, usually observable in chiral media. This phenomenon is known as extrinsic chirality. Second harmonic generation (SHG) is extremely sensitive to symmetry breaking, down to a single atomic monolayer and it has been extensively used as a probe of extrinsic chirality. Here we present SHG measurements of GaAs nanowires partially covered with Au, fabricated by a self-catalysed technique. The Au coated GaAs nanowires give rise to a dramatic circular dichroism in the generated second harmonic signal, compared to nanowires without coating.",

keywords = "Extrinsic chirality, GaAs nanowires, Plasmonic coating, Second harmonic generation",

author = "Alessandro Belardini and Collins, {Joel T.} and Hooper, {David C.} and Grigore Leahu and Emilija Petronijevic and Marco Centini and Voti, {Roberto Li} and Teemu Hakkarainen and Eero Koivusalo and Piton, {Marcelo Rizzo} and Soile Soumalainen and Mircea Guina and Valev, {Ventsislav K.} and Concita Sibilia",

note = "jufoid=5512; Italian National Conference on Photonic Technologies ; Conference date: 23-05-2018 Through 25-05-2018",

year = "2018",

doi = "10.1049/cp.2018.1632",

language = "English",

booktitle = "20th Italian National Conference on Photonic Technologies (Fotonica 2018)",

publisher = "IET",

}

Belardini, A, Collins, JT, Hooper, DC, Leahu, G, Petronijevic, E, Centini, M, Voti, RL, Hakkarainen, T , Koivusalo, E, Piton, MR, Soumalainen, S, Guina, M, Valev, VK & Sibilia, C 2018, Second harmonic generation circul dichroism in Au coated GaAs-based nanowires. julkaisussa 20th Italian National Conference on Photonic Technologies (Fotonica 2018). IET, Italian National Conference on Photonic Technologies, Lecce, Italia, 23/05/18. https://doi.org/10.1049/cp.2018.1632

TY - GEN

T1 - Second harmonic generation circul dichroism in Au coated GaAs-based nanowires

AU - Belardini, Alessandro

AU - Collins, Joel T.

AU - Hooper, David C.

AU - Leahu, Grigore

AU - Petronijevic, Emilija

AU - Centini, Marco

AU - Voti, Roberto Li

AU - Hakkarainen, Teemu

AU - Koivusalo, Eero

AU - Piton, Marcelo Rizzo

AU - Soumalainen, Soile

AU - Guina, Mircea

AU - Valev, Ventsislav K.

AU - Sibilia, Concita

N1 - jufoid=5512

PY - 2018

Y1 - 2018

N2 - Nanostructures with broken symmetry can interact with circularly polarized light to mimic chiroptical (chiral-optical) effects, usually observable in chiral media. This phenomenon is known as extrinsic chirality. Second harmonic generation (SHG) is extremely sensitive to symmetry breaking, down to a single atomic monolayer and it has been extensively used as a probe of extrinsic chirality. Here we present SHG measurements of GaAs nanowires partially covered with Au, fabricated by a self-catalysed technique. The Au coated GaAs nanowires give rise to a dramatic circular dichroism in the generated second harmonic signal, compared to nanowires without coating.

AB - Nanostructures with broken symmetry can interact with circularly polarized light to mimic chiroptical (chiral-optical) effects, usually observable in chiral media. This phenomenon is known as extrinsic chirality. Second harmonic generation (SHG) is extremely sensitive to symmetry breaking, down to a single atomic monolayer and it has been extensively used as a probe of extrinsic chirality. Here we present SHG measurements of GaAs nanowires partially covered with Au, fabricated by a self-catalysed technique. The Au coated GaAs nanowires give rise to a dramatic circular dichroism in the generated second harmonic signal, compared to nanowires without coating.

KW - Extrinsic chirality

KW - GaAs nanowires

KW - Plasmonic coating

KW - Second harmonic generation

U2 - 10.1049/cp.2018.1632

DO - 10.1049/cp.2018.1632

M3 - Conference contribution

AN - SCOPUS:85065702128

BT - 20th Italian National Conference on Photonic Technologies (Fotonica 2018)

PB - IET

T2 - Italian National Conference on Photonic Technologies

Y2 - 23 May 2018 through 25 May 2018

ER -

Second harmonic generation circul dichroism in Au coated GaAs-based nanowires

Abstrakti

Conference

Julkaisufoorumi-taso

!!ASJC Scopus subject areas

Pääsy asiakirjaan

Sormenjälki

Siteeraa tätä