Prof. Dr. Holger T. Grahn

Spatially resolved polarized micro-photoluminescence study of GaAs nanowires with both zincblende and wurtzite phases

@article{ author = { A. Mukherjee and S. Ghosh and S. Breuer and U. Jahn and L. Geelhaar and H. T. Grahn }, title = { Spatially resolved polarized micro-photoluminescence study of GaAs nanowires with both zincblende and wurtzite phases }, journal = { Journal of Applied Physics }, volume = { 117 }, year = { 2015 }, pages = { 054308 } }

TY - JOUR AU - A. Mukherjee AU - S. Ghosh AU - S. Breuer AU - U. Jahn AU - L. Geelhaar AU - H. T. Grahn TI - Spatially resolved polarized micro-photoluminescence study of GaAs nanowires with both zincblende and wurtzite phases JF - Journal of Applied Physics JA - J. Appl. Phys. J1 - JAP VL - 117 SP - 054308 PY - 2015/02/05

Evidence for frequency comb emission from a Fabry-Pérot terahertz quantum-cascade laser

@article{ author = { M. Wienold and B. Röben and L. Schrottke and H. T. Grahn }, title = { Evidence for frequency comb emission from a Fabry-Pérot terahertz quantum-cascade laser }, journal = { Optics Express }, volume = { 22 }, year = { 2014 }, pages = { 30410 } }

TY - JOUR AU - M. Wienold AU - B. Röben AU - L. Schrottke AU - H. T. Grahn TI - Evidence for frequency comb emission from a Fabry-Pérot terahertz quantum-cascade laser JF - Optics Express JA - Opt. Express J1 - VL - 22 SP - 30410 PY - 2014/12/01

Stacking faults as quantum wells in nanowires: Density of states, oscillator strength and radiative efficiency

@article{ author = { P. Corfdir and C. Hauswald and J. K. Zettler and T. Flissikowski and J. Lähnemann and S. Fernández-Garrido and L. Geelhaar and H. T. Grahn and O. Brandt }, title = { Stacking faults as quantum wells in nanowires: Density of states, oscillator strength and radiative efficiency }, journal = { Physical Review B: Solid State }, volume = { 90 }, year = { 2014 }, pages = { 195309 } }

TY - JOUR AU - P. Corfdir AU - C. Hauswald AU - J. K. Zettler AU - T. Flissikowski AU - J. Lähnemann AU - S. Fernández-Garrido AU - L. Geelhaar AU - H. T. Grahn AU - O. Brandt TI - Stacking faults as quantum wells in nanowires: Density of states, oscillator strength and radiative efficiency JF - Physical Review B: Solid State JA - Phys. Rev. B J1 - VL - 90 SP - 195309 PY - 2014/11/18

Origin of the nonradiative decay of bound excitons in GaN nanowires

@article{ author = { C. Hauswald and P. Corfdir and J. K. Zettler and V. M. Kaganer and K. K. Sabelfeld and S. Fernández-Garrido and T. Flissikowski and V. Consonni and T. Gotschke and H. T. Grahn and L. Geelhaar and O. Brandt }, title = { Origin of the nonradiative decay of bound excitons in GaN nanowires }, journal = { Physical Review B: Solid State }, volume = { 90 }, year = { 2014 }, pages = { 165304 } }

TY - JOUR AU - C. Hauswald AU - P. Corfdir AU - J. K. Zettler AU - V. M. Kaganer AU - K. K. Sabelfeld AU - S. Fernández-Garrido AU - T. Flissikowski AU - V. Consonni AU - T. Gotschke AU - H. T. Grahn AU - L. Geelhaar AU - O. Brandt TI - Origin of the nonradiative decay of bound excitons in GaN nanowires JF - Physical Review B: Solid State JA - Phys. Rev. B J1 - VL - 90 SP - 165304 PY - 2014/10/08

Luminescence associated with stacking faults in GaN

@article{ author = { J. Lähnemann and U. Jahn and O. Brandt and T. Flissikowski and P. Dogan and H. T. Grahn }, title = { Luminescence associated with stacking faults in GaN }, journal = { Journal of Physics D: Applied Physics }, volume = { 47 }, year = { 2014 }, pages = { 423001 } }

TY - JOUR AU - J. Lähnemann AU - U. Jahn AU - O. Brandt AU - T. Flissikowski AU - P. Dogan AU - H. T. Grahn TI - Luminescence associated with stacking faults in GaN JF - Journal of Physics D: Applied Physics JA - J. Phys. D: Appl. Phys. J1 - JPD VL - 47 SP - 423001 PY - 2014/10/01

Efficient simulation of the impact of interface grading on the optical and transport properties of semiconductor heterostructures

@article{ author = { X. Lü and L. Schrottke and E. Luna and H. T. Grahn }, title = { Efficient simulation of the impact of interface grading on the optical and transport properties of semiconductor heterostructures }, journal = { Applied Physics Letters }, volume = { 104 }, year = { 2014 }, pages = { 232106 } }

TY - JOUR AU - X. Lü AU - L. Schrottke AU - E. Luna AU - H. T. Grahn TI - Efficient simulation of the impact of interface grading on the optical and transport properties of semiconductor heterostructures JF - Applied Physics Letters JA - Appl. Phys. Lett. J1 - APL VL - 104 SP - 232106 PY - 2014/06/10

Generation of Dislocation Clusters by Glide m-planes in Semipolar GaN Layers

@article{ author = { N. Okada and A. Ishikawa and K. Yamane and K. Tadatomo and U. Jahn and H. T. Grahn }, title = { Generation of Dislocation Clusters by Glide m-planes in Semipolar GaN Layers }, journal = { Physica Status Solidi A }, volume = { 211 }, year = { 2014 }, pages = { 736 } }

TY - JOUR AU - N. Okada AU - A. Ishikawa AU - K. Yamane AU - K. Tadatomo AU - U. Jahn AU - H. T. Grahn TI - Generation of Dislocation Clusters by Glide m-planes in Semipolar GaN Layers JF - Physica Status Solidi A JA - Phys. Status Solidi A J1 - PSSA VL - 211 SP - 736 PY - 2014/03/26

Radiative and nonradiative decay of excitons in GaN nanowires

@article{ author = { C. Hauswald and T. Flissikowski and L. Geelhaar and H. T. Grahn and H. Riechert and O. Brandt }, title = { Radiative and nonradiative decay of excitons in GaN nanowires }, journal = { Proceedings of SPIE }, volume = { 8986 }, year = { 2014 }, pages = { 89860V } }

TY - JOUR AU - C. Hauswald AU - T. Flissikowski AU - L. Geelhaar AU - H. T. Grahn AU - H. Riechert AU - O. Brandt TI - Radiative and nonradiative decay of excitons in GaN nanowires JF - Proceedings of SPIE JA - Proc. SPIE J1 - VL - 8986 SP - 89860V PY - 2014/03/08

Experimental evidence for coherence resonance in a noise-driven GaAs/AlAs superlattice

@article{ author = { Y. Y. Huang and H. Qin and W. Li and S. L. Lu and J. R. Dong and H. T. Grahn and Y. H. Zhang }, title = { Experimental evidence for coherence resonance in a noise-driven GaAs/AlAs superlattice }, journal = { Europhysics Letters }, volume = { 105 }, year = { 2014 }, pages = { 47005 } }

TY - JOUR AU - Y. Y. Huang AU - H. Qin AU - W. Li AU - S. L. Lu AU - J. R. Dong AU - H. T. Grahn AU - Y. H. Zhang TI - Experimental evidence for coherence resonance in a noise-driven GaAs/AlAs superlattice JF - Europhysics Letters JA - Europhys. Lett. J1 - EPL VL - 105 SP - 47005 PY - 2014/03/03

High-temperature, continuous-wave operation of terahertz quantum-cascade lasers with metal-metal waveguides and third-order distributed feedback

@article{ author = { M. Wienold and B. Röben and L. Schrottke and R. Sharma and A. Tahraoui and K. Biermann and H. T. Grahn }, title = { High-temperature, continuous-wave operation of terahertz quantum-cascade lasers with metal-metal waveguides and third-order distributed feedback }, journal = { Optics Express }, volume = { 22 }, year = { 2014 }, pages = { 3334 } }

TY - JOUR AU - M. Wienold AU - B. Röben AU - L. Schrottke AU - R. Sharma AU - A. Tahraoui AU - K. Biermann AU - H. T. Grahn TI - High-temperature, continuous-wave operation of terahertz quantum-cascade lasers with metal-metal waveguides and third-order distributed feedback JF - Optics Express JA - Opt. Express J1 - VL - 22 SP - 3334 PY - 2014/02/05