Interband Cascade Lasers for gas sensing

Sven Höfling; R. Weih; A. Schade; M. Kamp

doi:10.1109/PIERS.2016.7735554

Abstract

The Interband Cascade Laser (ICL) [1, 2] combines the interband transition as in a conventional diode laser with the cascading scheme of a Quantum Cascade Laser. ICLs allow for an external quantum efficiency greater than which is enabled because of the special band alignment of GaInSb/AlAs/InAs-interfaces that separates hole and electron injector and internally feed each cascade with carriers. This makes ICLs a unique with great design flexibility. By changing the InAs layer thickness of the typically used W-shaped quantum well (W-QW) the emission wavelength can be tuned within the entire mid infrared region which is known as the fingerprint region of a variety of industrially relevant molecules. Absorption spectra of two prominent ones (acetone and nitric oxide) are shown in Figure 1 together with room temperature spectra of broad area ICLs driven under pulsed condition. Meanwhile GaSb-based ICLs that are operational in continuous wave mode at room temperature have been realized from 2.8 µm [3] to 5.6 µm [4].

Original language	English
Pages	4144-4145
Number of pages	2
DOIs	https://doi.org/10.1109/PIERS.2016.7735554
Publication status	Published - 10 Nov 2016
Event	2016 Progress In Electromagnetic Research Symposium - Shanghai, China Duration: 8 Aug 2016 → 11 Aug 2016

Conference

Conference	2016 Progress In Electromagnetic Research Symposium
Abbreviated title	PIERS
Country/Territory	China
City	Shanghai
Period	8/08/16 → 11/08/16

Keywords

Absorption
Electromagnetics
Quantum cascade lasers
Temperature
Temperature sensors

Access to Document

10.1109/PIERS.2016.7735554

Cite this

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title = "Interband Cascade Lasers for gas sensing",

abstract = "The Interband Cascade Laser (ICL) [1, 2] combines the interband transition as in a conventional diode laser with the cascading scheme of a Quantum Cascade Laser. ICLs allow for an external quantum efficiency greater than which is enabled because of the special band alignment of GaInSb/AlAs/InAs-interfaces that separates hole and electron injector and internally feed each cascade with carriers. This makes ICLs a unique with great design flexibility. By changing the InAs layer thickness of the typically used W-shaped quantum well (W-QW) the emission wavelength can be tuned within the entire mid infrared region which is known as the fingerprint region of a variety of industrially relevant molecules. Absorption spectra of two prominent ones (acetone and nitric oxide) are shown in Figure 1 together with room temperature spectra of broad area ICLs driven under pulsed condition. Meanwhile GaSb-based ICLs that are operational in continuous wave mode at room temperature have been realized from 2.8 µm [3] to 5.6 µm [4].",

keywords = "Absorption, Electromagnetics, Quantum cascade lasers, Temperature, Temperature sensors",

author = "Sven H{\"o}fling and R. Weih and A. Schade and M. Kamp",

year = "2016",

month = nov,

day = "10",

doi = "10.1109/PIERS.2016.7735554",

language = "English",

pages = "4144--4145",

note = "2016 Progress In Electromagnetic Research Symposium, PIERS ; Conference date: 08-08-2016 Through 11-08-2016",

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T1 - Interband Cascade Lasers for gas sensing

AU - Höfling, Sven

AU - Weih, R.

AU - Schade, A.

AU - Kamp, M.

PY - 2016/11/10

Y1 - 2016/11/10

N2 - The Interband Cascade Laser (ICL) [1, 2] combines the interband transition as in a conventional diode laser with the cascading scheme of a Quantum Cascade Laser. ICLs allow for an external quantum efficiency greater than which is enabled because of the special band alignment of GaInSb/AlAs/InAs-interfaces that separates hole and electron injector and internally feed each cascade with carriers. This makes ICLs a unique with great design flexibility. By changing the InAs layer thickness of the typically used W-shaped quantum well (W-QW) the emission wavelength can be tuned within the entire mid infrared region which is known as the fingerprint region of a variety of industrially relevant molecules. Absorption spectra of two prominent ones (acetone and nitric oxide) are shown in Figure 1 together with room temperature spectra of broad area ICLs driven under pulsed condition. Meanwhile GaSb-based ICLs that are operational in continuous wave mode at room temperature have been realized from 2.8 µm [3] to 5.6 µm [4].

AB - The Interband Cascade Laser (ICL) [1, 2] combines the interband transition as in a conventional diode laser with the cascading scheme of a Quantum Cascade Laser. ICLs allow for an external quantum efficiency greater than which is enabled because of the special band alignment of GaInSb/AlAs/InAs-interfaces that separates hole and electron injector and internally feed each cascade with carriers. This makes ICLs a unique with great design flexibility. By changing the InAs layer thickness of the typically used W-shaped quantum well (W-QW) the emission wavelength can be tuned within the entire mid infrared region which is known as the fingerprint region of a variety of industrially relevant molecules. Absorption spectra of two prominent ones (acetone and nitric oxide) are shown in Figure 1 together with room temperature spectra of broad area ICLs driven under pulsed condition. Meanwhile GaSb-based ICLs that are operational in continuous wave mode at room temperature have been realized from 2.8 µm [3] to 5.6 µm [4].

KW - Absorption

KW - Electromagnetics

KW - Quantum cascade lasers

KW - Temperature

KW - Temperature sensors

U2 - 10.1109/PIERS.2016.7735554

DO - 10.1109/PIERS.2016.7735554

M3 - Abstract

SP - 4144

EP - 4145

T2 - 2016 Progress In Electromagnetic Research Symposium

Y2 - 8 August 2016 through 11 August 2016