Determination of the interface grading parameter for terahertz quantum-cascade laser structures based on transmission electron microscopy

@article{ author = { X. Lü and E. Luna and L. Schrottke and K. Biermann and H. T. Grahn }, title = { Determination of the interface grading parameter for terahertz quantum-cascade laser structures based on transmission electron microscopy }, journal = { Applied Physics Letters }, volume = { 113 }, year = { 2018 }, pages = { 172101 } }

TY - JOUR AU - X. Lü AU - E. Luna AU - L. Schrottke AU - K. Biermann AU - H. T. Grahn TI - Determination of the interface grading parameter for terahertz quantum-cascade laser structures based on transmission electron microscopy JF - Applied Physics Letters JA - Appl. Phys. Lett. J1 - APL VL - 113 SP - 172101 PY - 2018/10/22

Intrinsic frequency tuning of terahertz quantum-cascade lasers

@article{ author = { L. Schrottke and X. Lü and B. Röben and K. Biermann and M. Wienold and H. Richter and H.-W. Hübers and H. T. Grahn }, title = { Intrinsic frequency tuning of terahertz quantum-cascade lasers }, journal = { Journal of Applied Physics }, volume = { 123 }, year = { 2018 }, pages = { 213102 } }

TY - JOUR AU - L. Schrottke AU - X. Lü AU - B. Röben AU - K. Biermann AU - M. Wienold AU - H. Richter AU - H.-W. Hübers AU - H. T. Grahn TI - Intrinsic frequency tuning of terahertz quantum-cascade lasers JF - Journal of Applied Physics JA - J. Appl. Phys. J1 - JAP VL - 123 SP - 213102 PY - 2018/05/31

Electrical and optical properties of epitaxial binary and ternary GeTe-Sb2Te3 alloys

@article{ author = { J.E. Boschker and X. Lü and V. Bragaglia and R. Wang and H. T. Grahn and R. Calarco }, title = { Electrical and optical properties of epitaxial binary and ternary GeTe-Sb2Te3 alloys }, journal = { Scientific Reports }, volume = { 8 }, year = { 2018 }, pages = { 5889 } }

TY - JOUR AU - J.E. Boschker AU - X. Lü AU - V. Bragaglia AU - R. Wang AU - H. T. Grahn AU - R. Calarco TI - Electrical and optical properties of epitaxial binary and ternary GeTe-Sb2Te3 alloys JF - Scientific Reports JA - Sci. Rep. J1 - SREP VL - 8 SP - 5889 PY - 2018/04/12

Terahertz quantum-cascade lasers as high-power and wideband, gapless sources for spectroscopy

@article{ author = { B. Röben and X. Lü and M. Hempel and K. Biermann and L. Schrottke and H. T. Grahn }, title = { Terahertz quantum-cascade lasers as high-power and wideband, gapless sources for spectroscopy }, journal = { Optics Express }, volume = { 25 }, year = { 2017 }, pages = { 16282 } }

TY - JOUR AU - B. Röben AU - X. Lü AU - M. Hempel AU - K. Biermann AU - L. Schrottke AU - H. T. Grahn TI - Terahertz quantum-cascade lasers as high-power and wideband, gapless sources for spectroscopy JF - Optics Express JA - Opt. Express J1 - VL - 25 SP - 16282 PY - 2017/06/29

Laterally biased structures for room temperature operation of quantumwell infrared photodetectors

@article{ author = { A. Guzman and R. Gargallo-Caballero and X. Lü and H. T. Grahn }, title = { Laterally biased structures for room temperature operation of quantumwell infrared photodetectors }, journal = { Journal of Crystal Growth }, volume = { 477 }, year = { 2017 }, pages = { 272 } }

TY - JOUR AU - A. Guzman AU - R. Gargallo-Caballero AU - X. Lü AU - H. T. Grahn TI - Laterally biased structures for room temperature operation of quantumwell infrared photodetectors JF - Journal of Crystal Growth JA - J. Cryst. Growth J1 - JGC VL - 477 SP - 272 PY - 2017/04/19

Efficient numerical procedure for the determination of the wave function-independent terms in longitudinal optical phonon scattering rates formulated in the Fourier domain

@article{ author = { X. Lü and L. Schrottke and H. T. Grahn }, title = { Efficient numerical procedure for the determination of the wave function-independent terms in longitudinal optical phonon scattering rates formulated in the Fourier domain }, journal = { Journal of Computational Electronics }, volume = { 15 }, year = { 2016 }, pages = { 1505 } }

TY - JOUR AU - X. Lü AU - L. Schrottke AU - H. T. Grahn TI - Efficient numerical procedure for the determination of the wave function-independent terms in longitudinal optical phonon scattering rates formulated in the Fourier domain JF - Journal of Computational Electronics JA - J. Comput. Electron. J1 - VL - 15 SP - 1505 PY - 2016/09/16

Fourier-transform-based model for carrier transport in semiconductor heterostructures: Longitudinal optical phonon scattering

@article{ author = { X. Lü and L. Schrottke and H. T. Grahn }, title = { Fourier-transform-based model for carrier transport in semiconductor heterostructures: Longitudinal optical phonon scattering }, journal = { Journal of Applied Physics }, volume = { 119 }, year = { 2016 }, pages = { 214302 } }

TY - JOUR AU - X. Lü AU - L. Schrottke AU - H. T. Grahn TI - Fourier-transform-based model for carrier transport in semiconductor heterostructures: Longitudinal optical phonon scattering JF - Journal of Applied Physics JA - J. Appl. Phys. J1 - JAP VL - 119 SP - 214302 PY - 2016/06/01

Terahertz GaAs/AlAs quantum-cascade lasers

@article{ author = { L. Schrottke and X. Lü and G. Rozas and K. Biermann and H. T. Grahn }, title = { Terahertz GaAs/AlAs quantum-cascade lasers }, journal = { Applied Physics Letters }, volume = { 108 }, year = { 2016 }, pages = { 102102 } }

TY - JOUR AU - L. Schrottke AU - X. Lü AU - G. Rozas AU - K. Biermann AU - H. T. Grahn TI - Terahertz GaAs/AlAs quantum-cascade lasers JF - Applied Physics Letters JA - Appl. Phys. Lett. J1 - APL VL - 108 SP - 102102 PY - 2016/03/08

Frequency dependence of the maximum operating temperature for quantum-cascade lasers up to 5.4 THz

@article{ author = { M. Wienold and B. Röben and X. Lü and G. Rozas and L. Schrottke and K. Biermann and H. T. Grahn }, title = { Frequency dependence of the maximum operating temperature for quantum-cascade lasers up to 5.4 THz }, journal = { Applied Physics Letters }, volume = { 107 }, year = { 2015 }, pages = { 202101 } }

TY - JOUR AU - M. Wienold AU - B. Röben AU - X. Lü AU - G. Rozas AU - L. Schrottke AU - K. Biermann AU - H. T. Grahn TI - Frequency dependence of the maximum operating temperature for quantum-cascade lasers up to 5.4 THz JF - Applied Physics Letters JA - Appl. Phys. Lett. J1 - APL VL - 107 SP - 202101 PY - 2015/11/16

Fourier transform-based scattering-rate method for self-consistent simulations of carrier transport in semiconductor heterostructures

@article{ author = { L. Schrottke and X. Lü and H. T. Grahn }, title = { Fourier transform-based scattering-rate method for self-consistent simulations of carrier transport in semiconductor heterostructures }, journal = { Journal of Applied Physics }, volume = { 117 }, year = { 2015 }, pages = { 154309 } }

TY - JOUR AU - L. Schrottke AU - X. Lü AU - H. T. Grahn TI - Fourier transform-based scattering-rate method for self-consistent simulations of carrier transport in semiconductor heterostructures JF - Journal of Applied Physics JA - J. Appl. Phys. J1 - JAP VL - 117 SP - 154309 PY - 2015/04/21