Low-threshold lasing in novel microdisk geometries

B. Corbett; J. Justice; L. Considine; S. Walsh; W. M. Kelly

doi:10.1109/68.502249

Low-threshold lasing in novel microdisk geometries

B. Corbett
, J. Justice
, L. Considine
, S. Walsh
, W. M. Kelly

University College Cork

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

Abstract

We have fabricated arrays of semiconductor microdisks with diameters from 3.5-9 μm using wet chemical etching in combination with epitaxial lift-off and metallic bonding techniques. The microdisks are supported on glass for higher optical confinement and to allow novel annular geometries. The optically pumped microdisks have high-Q (>2000) modes, low-pump thresholds (<20 μW) and multimode lasing at liquid nitrogen temperatures. Successive modes are excited by temperature tuning the bandgap.

Original language	English
Pages (from-to)	855-857
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	8
Issue number	7
DOIs	https://doi.org/10.1109/68.502249
Publication status	Published - Jul 1996

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title = "Low-threshold lasing in novel microdisk geometries",

abstract = "We have fabricated arrays of semiconductor microdisks with diameters from 3.5-9 μm using wet chemical etching in combination with epitaxial lift-off and metallic bonding techniques. The microdisks are supported on glass for higher optical confinement and to allow novel annular geometries. The optically pumped microdisks have high-Q (>2000) modes, low-pump thresholds (<20 μW) and multimode lasing at liquid nitrogen temperatures. Successive modes are excited by temperature tuning the bandgap.",

author = "B. Corbett and J. Justice and L. Considine and S. Walsh and Kelly, \{W. M.\}",

year = "1996",

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AU - Corbett, B.

AU - Justice, J.

AU - Considine, L.

AU - Walsh, S.

AU - Kelly, W. M.

PY - 1996/7

Y1 - 1996/7

N2 - We have fabricated arrays of semiconductor microdisks with diameters from 3.5-9 μm using wet chemical etching in combination with epitaxial lift-off and metallic bonding techniques. The microdisks are supported on glass for higher optical confinement and to allow novel annular geometries. The optically pumped microdisks have high-Q (>2000) modes, low-pump thresholds (<20 μW) and multimode lasing at liquid nitrogen temperatures. Successive modes are excited by temperature tuning the bandgap.

AB - We have fabricated arrays of semiconductor microdisks with diameters from 3.5-9 μm using wet chemical etching in combination with epitaxial lift-off and metallic bonding techniques. The microdisks are supported on glass for higher optical confinement and to allow novel annular geometries. The optically pumped microdisks have high-Q (>2000) modes, low-pump thresholds (<20 μW) and multimode lasing at liquid nitrogen temperatures. Successive modes are excited by temperature tuning the bandgap.

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DO - 10.1109/68.502249

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

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Low-threshold lasing in novel microdisk geometries

Abstract

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