Mapping of Fabry-Perot and whispering gallery modes in GaN microwires by nonlinear imaging

Standard

Mapping of Fabry-Perot and whispering gallery modes in GaN microwires by nonlinear imaging. / Berdnikov, Yury ; Shtrom, Igor; Rozhavskaya, Maria; Lundin, Wsevolod; Hendricks, Nicholas; Grange, Rachel; Timofeeva, Maria.

In: Nanotechnology, Vol. 32, No. 40, 40LT01, 01.10.2021.

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

Author

Berdnikov, Yury ; Shtrom, Igor ; Rozhavskaya, Maria ; Lundin, Wsevolod ; Hendricks, Nicholas ; Grange, Rachel ; Timofeeva, Maria. / Mapping of Fabry-Perot and whispering gallery modes in GaN microwires by nonlinear imaging. In: Nanotechnology. 2021 ; Vol. 32, No. 40.

BibTeX

@article{09ae9218b7fa4229991f64295f89f4ca,

title = "Mapping of Fabry-Perot and whispering gallery modes in GaN microwires by nonlinear imaging",

abstract = "Engineering nonlinear optical responses at the microscale is a key topic in photonics for achieving efficient frequency conversion and light manipulation. Gallium nitride (GaN) is a promising semiconductor material for integrated nonlinear photonic structures. In this work, we use epitaxially grown GaN microwires as nonlinear optical whispering gallery and Fabry-Perot resonators. We demonstrate an effective generation of second-harmonic and polarization-dependent signals of whispering gallery and Fabry-Perot modes (FPM) under near-infrared (NIR) excitation. We show how the rotation of the excitation polarization can be used to control and switch between Fabry-Perot and whispering gallery modes in tapered GaN microwire resonators. We demonstrate the enhancement of two-photon luminescence in the yellow-green spectral range due to efficient coupling between whispering gallery, FPM, and excitonic states in GaN. This luminescence enhancement allows us to conveniently visualize whispering gallery modes excited with a NIR source. Such microwire resonators can be used as compact microlasers or sensing elements in photonic sensors.",

keywords = "gallium nitride, nonlinear imaging, second-harmonic generation, whispering gallery mode, MICRODISK, LUMINESCENCE, 2ND-HARMONIC GENERATION, CRYSTAL, WAVE-GUIDE, EMISSION, MICROSCOPY",

author = "Yury Berdnikov and Igor Shtrom and Maria Rozhavskaya and Wsevolod Lundin and Nicholas Hendricks and Rachel Grange and Maria Timofeeva",

note = "Publisher Copyright: {\textcopyright} 2021 IOP Publishing Ltd.",

year = "2021",

month = oct,

day = "1",

doi = "10.1088/1361-6528/ac1017",

language = "English",

volume = "32",

journal = "Nanotechnology",

issn = "0957-4484",

publisher = "IOP Publishing Ltd.",

number = "40",

}

RIS

TY - JOUR

T1 - Mapping of Fabry-Perot and whispering gallery modes in GaN microwires by nonlinear imaging

AU - Berdnikov, Yury

AU - Shtrom, Igor

AU - Rozhavskaya, Maria

AU - Lundin, Wsevolod

AU - Hendricks, Nicholas

AU - Grange, Rachel

AU - Timofeeva, Maria

PY - 2021/10/1

Y1 - 2021/10/1

N2 - Engineering nonlinear optical responses at the microscale is a key topic in photonics for achieving efficient frequency conversion and light manipulation. Gallium nitride (GaN) is a promising semiconductor material for integrated nonlinear photonic structures. In this work, we use epitaxially grown GaN microwires as nonlinear optical whispering gallery and Fabry-Perot resonators. We demonstrate an effective generation of second-harmonic and polarization-dependent signals of whispering gallery and Fabry-Perot modes (FPM) under near-infrared (NIR) excitation. We show how the rotation of the excitation polarization can be used to control and switch between Fabry-Perot and whispering gallery modes in tapered GaN microwire resonators. We demonstrate the enhancement of two-photon luminescence in the yellow-green spectral range due to efficient coupling between whispering gallery, FPM, and excitonic states in GaN. This luminescence enhancement allows us to conveniently visualize whispering gallery modes excited with a NIR source. Such microwire resonators can be used as compact microlasers or sensing elements in photonic sensors.

AB - Engineering nonlinear optical responses at the microscale is a key topic in photonics for achieving efficient frequency conversion and light manipulation. Gallium nitride (GaN) is a promising semiconductor material for integrated nonlinear photonic structures. In this work, we use epitaxially grown GaN microwires as nonlinear optical whispering gallery and Fabry-Perot resonators. We demonstrate an effective generation of second-harmonic and polarization-dependent signals of whispering gallery and Fabry-Perot modes (FPM) under near-infrared (NIR) excitation. We show how the rotation of the excitation polarization can be used to control and switch between Fabry-Perot and whispering gallery modes in tapered GaN microwire resonators. We demonstrate the enhancement of two-photon luminescence in the yellow-green spectral range due to efficient coupling between whispering gallery, FPM, and excitonic states in GaN. This luminescence enhancement allows us to conveniently visualize whispering gallery modes excited with a NIR source. Such microwire resonators can be used as compact microlasers or sensing elements in photonic sensors.

KW - gallium nitride

KW - nonlinear imaging

KW - second-harmonic generation

KW - whispering gallery mode

KW - MICRODISK

KW - LUMINESCENCE

KW - 2ND-HARMONIC GENERATION

KW - CRYSTAL

KW - WAVE-GUIDE

KW - EMISSION

KW - MICROSCOPY

UR - http://www.scopus.com/inward/record.url?scp=85111578180&partnerID=8YFLogxK

U2 - 10.1088/1361-6528/ac1017

DO - 10.1088/1361-6528/ac1017

M3 - Article

C2 - 34192677

AN - SCOPUS:85111578180

VL - 32

JO - Nanotechnology

JF - Nanotechnology

SN - 0957-4484

IS - 40

M1 - 40LT01

ER -

ID: 88772210