Thermal Modelling of Quantum Cascade Lasers

• Authors: V. Spagnolo , M. Vitiello , C. Di Franco , G. Scamarcio
• Languages of publication: EN

Abstracts

EN

One of the top priorities in the development of quantum cascade laser sources is the optimization of the heat transport dynamic. We review here our experimental studies on the thermal properties of state of art quantum cascade lasers operating both in the mid-IR and THz ranges. The experimental approach is based on the investigation of the band-to-band photoluminescence signals, collected during device continuous wave operation. We measured the lattice temperature profile on the device front facet and using these data as inputs, we extract the heat dissipation patterns, the in-plane and the cross-plane active region thermal conductivities and the thermal boundary resistance for quantum cascade lasers based on different material systems.

Keywords

EN

61.46.-w; 61.82.Fk; 68.35.Ct

Discipline

• 68.35.Ct: Interface structure and roughness
• 61.46.-w: Structure of nanoscale materials(for thermal properties of nanocrystals and nanotubes, see 65.80.-g; for mechanical properties of nanoscale systems, see 62.25.-g; for electronic transport in nanoscale materials, see 73.63.-b; see also 62.23.-c Structural classes of nanoscale systems; 64.70.Nd Structural transitions in nanoscale materials; for magnetic properties of nanostructures, see 75.75.-c)
• 61.82.Fk: Semiconductors

• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 116
• Issue: 4
• Pages: 451-454

Dates

published

2009-10

Contributors

author

V. Spagnolo

• CNR-INFM Regional Laboratory LIT, Bari, Italy
• Dipartimento Interateneo di Fisica "M. Merlin", Università degli Studi e Politecnico di Bari, Bari, Italy

author

M. Vitiello

• Dipartimento Interateneo di Fisica "M. Merlin", Università degli Studi e Politecnico di Bari, Bari, Italy

author

C. Di Franco

• CNR-INFM Regional Laboratory LIT, Bari, Italy
• Dipartimento Interateneo di Fisica "M. Merlin", Università degli Studi e Politecnico di Bari, Bari, Italy

author

G. Scamarcio

• CNR-INFM Regional Laboratory LIT, Bari, Italy
• Dipartimento Interateneo di Fisica "M. Merlin", Università degli Studi e Politecnico di Bari, Bari, Italy

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Identifiers

DOI

10.12693/APhysPolA.116.451