High-speed operation of GaN/AlGaN quantum cascade detectors at λ≈1.55 μm

A. Vardi; N. Kheirodin; L. Nevou; H. MacHhadani; L. Vivien; P. Crozat; M. Tchernycheva; R. Colombelli; F. H. Julien; F. Guillot; C. Bougerol; E. Monroy; S. Schacham; G. Bahir

doi:10.1063/1.3021376

High-speed operation of GaN/AlGaN quantum cascade detectors at λ≈1.55 μm

A. Vardi, N. Kheirodin, L. Nevou, H. MacHhadani, L. Vivien, P. Crozat, M. Tchernycheva, R. Colombelli, F. H. Julien, F. Guillot, C. Bougerol, E. Monroy, S. Schacham, G. Bahir

Department of Electrical and Electronics Engineering

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

62 Scopus citations

Abstract

We demonstrate room-temperature, high-speed operation of GaN/AlGaN quantum cascade detectors. The devices are processed as square mesas with 50 Ω coplanar access lines. Frequency response measurements were performed under illumination by a modulated laser diode emitting at λ=1.55 μm. The electrical response exhibits a first-order filter frequency response. For 17×17 μ m² (25×25 μ m²) detectors the -3 dB cutoff frequency is 11.4 GHz (6.5 GHz). S-parameter analysis confirms that the cutoff frequency is extrinsically limited and that the speed of the device can be further increased by reducing the device size.

Original language	English
Article number	193509
Journal	Applied Physics Letters
Volume	93
Issue number	19
DOIs	https://doi.org/10.1063/1.3021376
State	Published - 2008

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10.1063/1.3021376

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@article{8e9cb4250793415788026d1b6a99b5bf,

title = "High-speed operation of GaN/AlGaN quantum cascade detectors at λ≈1.55 μm",

abstract = "We demonstrate room-temperature, high-speed operation of GaN/AlGaN quantum cascade detectors. The devices are processed as square mesas with 50 Ω coplanar access lines. Frequency response measurements were performed under illumination by a modulated laser diode emitting at λ=1.55 μm. The electrical response exhibits a first-order filter frequency response. For 17×17 μ m2 (25×25 μ m2) detectors the -3 dB cutoff frequency is 11.4 GHz (6.5 GHz). S-parameter analysis confirms that the cutoff frequency is extrinsically limited and that the speed of the device can be further increased by reducing the device size.",

author = "A. Vardi and N. Kheirodin and L. Nevou and H. MacHhadani and L. Vivien and P. Crozat and M. Tchernycheva and R. Colombelli and Julien, {F. H.} and F. Guillot and C. Bougerol and E. Monroy and S. Schacham and G. Bahir",

note = "Funding Information: We acknowledge fruitful discussions with V. Berger. The AlN/-sapphire substrates were provided by DOWA Electronics Materials, Inc. This work was supported in part by ANR-06-BLAN-0130 TRANSNIT and by the U.S.-Israel Binational Science Foundation under Contract No. 2004366.",

year = "2008",

doi = "10.1063/1.3021376",

language = "אנגלית",

volume = "93",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "19",

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TY - JOUR

T1 - High-speed operation of GaN/AlGaN quantum cascade detectors at λ≈1.55 μm

AU - Vardi, A.

AU - Kheirodin, N.

AU - Nevou, L.

AU - MacHhadani, H.

AU - Vivien, L.

AU - Crozat, P.

AU - Tchernycheva, M.

AU - Colombelli, R.

AU - Julien, F. H.

AU - Guillot, F.

AU - Bougerol, C.

AU - Monroy, E.

AU - Schacham, S.

AU - Bahir, G.

N1 - Funding Information: We acknowledge fruitful discussions with V. Berger. The AlN/-sapphire substrates were provided by DOWA Electronics Materials, Inc. This work was supported in part by ANR-06-BLAN-0130 TRANSNIT and by the U.S.-Israel Binational Science Foundation under Contract No. 2004366.

PY - 2008

Y1 - 2008

N2 - We demonstrate room-temperature, high-speed operation of GaN/AlGaN quantum cascade detectors. The devices are processed as square mesas with 50 Ω coplanar access lines. Frequency response measurements were performed under illumination by a modulated laser diode emitting at λ=1.55 μm. The electrical response exhibits a first-order filter frequency response. For 17×17 μ m2 (25×25 μ m2) detectors the -3 dB cutoff frequency is 11.4 GHz (6.5 GHz). S-parameter analysis confirms that the cutoff frequency is extrinsically limited and that the speed of the device can be further increased by reducing the device size.

AB - We demonstrate room-temperature, high-speed operation of GaN/AlGaN quantum cascade detectors. The devices are processed as square mesas with 50 Ω coplanar access lines. Frequency response measurements were performed under illumination by a modulated laser diode emitting at λ=1.55 μm. The electrical response exhibits a first-order filter frequency response. For 17×17 μ m2 (25×25 μ m2) detectors the -3 dB cutoff frequency is 11.4 GHz (6.5 GHz). S-parameter analysis confirms that the cutoff frequency is extrinsically limited and that the speed of the device can be further increased by reducing the device size.

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DO - 10.1063/1.3021376

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AN - SCOPUS:56249105411

SN - 0003-6951

VL - 93

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 19

M1 - 193509

ER -

High-speed operation of GaN/AlGaN quantum cascade detectors at λ≈1.55 μm

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