Mode selection in electrically driven quantum dot microring cavities

Alexander Schlehahn; Ferdinand Albert; Christian Schneider; Sven Höfling; Stephan Reitzenstein; Jan Wiersig; Martin Kamp

doi:10.1364/OE.21.015951

Mode selection in electrically driven quantum dot microring cavities

Alexander Schlehahn, Ferdinand Albert, Christian Schneider, Sven Höfling, Stephan Reitzenstein, Jan Wiersig, Martin Kamp^*

^*Corresponding author for this work

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

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Abstract

Within this paper a novel method for selecting certain lasing modes from a whispering gallery mode (WGM) spectrum of electrically pumped microrings is presented. Selection is achieved by introducing sub-wavelength sized notches of about 50nm width and 500nm depth to the sidewalls of ring shaped quantum dot micro cavities with 80 mu m diameter and ridge widths below 2 mu m. It is shown that the notches act as scattering centers, suppressing modes that have maxima in intensity at the notch position. By a variation of the angle between the notches, different repetitive patterns of lasing modes and suppressed modes are conceivable. (C) 2013 Optical Society of America

Original language	English
Pages (from-to)	15951-15958
Number of pages	8
Journal	Optics Express
Volume	21
Issue number	13
DOIs	https://doi.org/10.1364/OE.21.015951
Publication status	Published - 1 Jul 2013

Keywords

Whispering-gallery modes
Microdisk lasers
Emission

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10.1364/OE.21.015951

21-13-15951
© 2013 OSA. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at: http://www.opticsinfobase.org/oe/fulltext.cfm?uri=oe-21-13-15951&id=258322. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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title = "Mode selection in electrically driven quantum dot microring cavities",

abstract = "Within this paper a novel method for selecting certain lasing modes from a whispering gallery mode (WGM) spectrum of electrically pumped microrings is presented. Selection is achieved by introducing sub-wavelength sized notches of about 50nm width and 500nm depth to the sidewalls of ring shaped quantum dot micro cavities with 80 mu m diameter and ridge widths below 2 mu m. It is shown that the notches act as scattering centers, suppressing modes that have maxima in intensity at the notch position. By a variation of the angle between the notches, different repetitive patterns of lasing modes and suppressed modes are conceivable. (C) 2013 Optical Society of America",

keywords = "Whispering-gallery modes, Microdisk lasers, Emission",

author = "Alexander Schlehahn and Ferdinand Albert and Christian Schneider and Sven H{\"o}fling and Stephan Reitzenstein and Jan Wiersig and Martin Kamp",

note = "This work is supported by the European Commission within the scope of the project “TREASURE” (Grant No. 250056) ",

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T1 - Mode selection in electrically driven quantum dot microring cavities

AU - Schlehahn, Alexander

AU - Albert, Ferdinand

AU - Schneider, Christian

AU - Höfling, Sven

AU - Reitzenstein, Stephan

AU - Wiersig, Jan

AU - Kamp, Martin

N1 - This work is supported by the European Commission within the scope of the project “TREASURE” (Grant No. 250056)

PY - 2013/7/1

Y1 - 2013/7/1

N2 - Within this paper a novel method for selecting certain lasing modes from a whispering gallery mode (WGM) spectrum of electrically pumped microrings is presented. Selection is achieved by introducing sub-wavelength sized notches of about 50nm width and 500nm depth to the sidewalls of ring shaped quantum dot micro cavities with 80 mu m diameter and ridge widths below 2 mu m. It is shown that the notches act as scattering centers, suppressing modes that have maxima in intensity at the notch position. By a variation of the angle between the notches, different repetitive patterns of lasing modes and suppressed modes are conceivable. (C) 2013 Optical Society of America

AB - Within this paper a novel method for selecting certain lasing modes from a whispering gallery mode (WGM) spectrum of electrically pumped microrings is presented. Selection is achieved by introducing sub-wavelength sized notches of about 50nm width and 500nm depth to the sidewalls of ring shaped quantum dot micro cavities with 80 mu m diameter and ridge widths below 2 mu m. It is shown that the notches act as scattering centers, suppressing modes that have maxima in intensity at the notch position. By a variation of the angle between the notches, different repetitive patterns of lasing modes and suppressed modes are conceivable. (C) 2013 Optical Society of America

KW - Whispering-gallery modes

KW - Microdisk lasers

KW - Emission

U2 - 10.1364/OE.21.015951

DO - 10.1364/OE.21.015951

M3 - Article

SN - 1094-4087

VL - 21

SP - 15951

EP - 15958

JO - Optics Express

JF - Optics Express

IS - 13

ER -

Mode selection in electrically driven quantum dot microring cavities

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