Enhancing oscillator strength for second harmonic generation in AlGaAs/InGaAs quantum cascade lasers

Triplett, Gregory; Roberts, David; Ikpe, Stanley A.

doi:10.1109/iciprm.2009.5012513

Cited by 1 publication

(1 citation statement)

References 8 publications

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“…With control of Ga adatoms surface diffusion length and understanding that the growth kinetics are comparable for other III-V arsenic-based material, excellent material quality for the AlGaAs/(In)GaAs QCL structures is obtainable [29]. Similar MBE growth conditions are employed for simulated AlGaAs/(In)GaAs QCL structures on (111) GaAs [37].…”

Section: Qcl Growth On (111) Substratesmentioning

confidence: 99%

Extending device performance in photonic devices using piezoelectric properties

Triplett

2013

SPIE Proceedings

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This study focuses on the influence of epi-layer strain and piezoelectric effects in asymmetric GaInAs/GaAlAs action regions that potentially lead to intra-cavity frequency mixing. The theoretical limits for conduction and valence band offsets in lattice-matched semiconductor structures have resulted in the deployment of non-traditional approaches such as strain compensation to extend wavelength in intersubband devices, where strain limits are related to misfit dislocation generation. Strain and piezoelectric effects have been studied and verified using select photonic device designs. Metrics under this effort also included dipole strength, oscillator strength, and offset of energy transitions, which are strongly correlated with induced piezoelectric effects. Unique photonic designs were simulated, modeled, and then fabricated using solid-source molecular beam epitaxy into photonic devices. The initial designs produce "lambda" wavelength, and the introduction of the piezoelectric effect resulted in "lambda/2" wavelength. More importantly, this work demonstrates that the theoretical cutoff wavelength in intersubband lasers can be overcome.

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Section: Qcl Growth On (111) Substratesmentioning

confidence: 99%

Extending device performance in photonic devices using piezoelectric properties

Triplett

2013

SPIE Proceedings

View full text Add to dashboard Cite

show abstract

Enhancing oscillator strength for second harmonic generation in AlGaAs/InGaAs quantum cascade lasers

Cited by 1 publication

References 8 publications

Extending device performance in photonic devices using piezoelectric properties

Extending device performance in photonic devices using piezoelectric properties

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