Quantum cascade disk lasers

Jerôme Faist; Claire Gmachl; Marinella Striccoli; Carlo Sirtori; Federico Capasso; Deborah L. Sivco; Alfred Y. Cho

doi:10.1063/1.117496

Quantum cascade disk lasers

Jerôme Faist, Claire Gmachl, Marinella Striccoli, Carlo Sirtori, Federico Capasso, Deborah L. Sivco, Alfred Y. Cho

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

81 Scopus citations

Abstract

The fabrication and characterization of quantum cascade (QC) disk lasers at 5 μm wavelength is reported. The QC scheme yields several advantages for the disk geometry: an inherently transverse magnetic polarization, tailorable wavelength, and unipolar carrier transport. The low loss whispering gallery resonator allows small devices, 17-125 μm in diameter, and low threshold currents (2.85 mA for a 17 μm diameter disk) with a size independent pulsed threshold current density of 1.2 kAcm^-2 at 15 K. From the threshold current density the quality factor of the disks is estimated at Q∼3500. The emission spectra show single and multiple whispering gallery modes.

Original language	English (US)
Pages (from-to)	2456-2458
Number of pages	3
Journal	Applied Physics Letters
Volume	69
Issue number	17
DOIs	https://doi.org/10.1063/1.117496
State	Published - Oct 21 1996
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.117496

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title = "Quantum cascade disk lasers",

abstract = "The fabrication and characterization of quantum cascade (QC) disk lasers at 5 μm wavelength is reported. The QC scheme yields several advantages for the disk geometry: an inherently transverse magnetic polarization, tailorable wavelength, and unipolar carrier transport. The low loss whispering gallery resonator allows small devices, 17-125 μm in diameter, and low threshold currents (2.85 mA for a 17 μm diameter disk) with a size independent pulsed threshold current density of 1.2 kAcm-2 at 15 K. From the threshold current density the quality factor of the disks is estimated at Q∼3500. The emission spectra show single and multiple whispering gallery modes.",

author = "Jer{\^o}me Faist and Claire Gmachl and Marinella Striccoli and Carlo Sirtori and Federico Capasso and Sivco, {Deborah L.} and Cho, {Alfred Y.}",

year = "1996",

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doi = "10.1063/1.117496",

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T1 - Quantum cascade disk lasers

AU - Faist, Jerôme

AU - Gmachl, Claire

AU - Striccoli, Marinella

AU - Sirtori, Carlo

AU - Capasso, Federico

AU - Sivco, Deborah L.

AU - Cho, Alfred Y.

PY - 1996/10/21

Y1 - 1996/10/21

N2 - The fabrication and characterization of quantum cascade (QC) disk lasers at 5 μm wavelength is reported. The QC scheme yields several advantages for the disk geometry: an inherently transverse magnetic polarization, tailorable wavelength, and unipolar carrier transport. The low loss whispering gallery resonator allows small devices, 17-125 μm in diameter, and low threshold currents (2.85 mA for a 17 μm diameter disk) with a size independent pulsed threshold current density of 1.2 kAcm-2 at 15 K. From the threshold current density the quality factor of the disks is estimated at Q∼3500. The emission spectra show single and multiple whispering gallery modes.

AB - The fabrication and characterization of quantum cascade (QC) disk lasers at 5 μm wavelength is reported. The QC scheme yields several advantages for the disk geometry: an inherently transverse magnetic polarization, tailorable wavelength, and unipolar carrier transport. The low loss whispering gallery resonator allows small devices, 17-125 μm in diameter, and low threshold currents (2.85 mA for a 17 μm diameter disk) with a size independent pulsed threshold current density of 1.2 kAcm-2 at 15 K. From the threshold current density the quality factor of the disks is estimated at Q∼3500. The emission spectra show single and multiple whispering gallery modes.

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 17

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Quantum cascade disk lasers

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