Dr. Klaus Biermann

Frequency upshift of the transverse optical phonon resonance in GaAs by femtosecond electron-hole excitation

@article{ author = { Ahmed Ghalgaoui and Klaus Reimann and Michael Woerner and Thomas Elsaesser and Christos Flytzanis and K. Biermann }, title = { Frequency upshift of the transverse optical phonon resonance in GaAs by femtosecond electron-hole excitation }, journal = { Physical Review Letters }, volume = { 125 }, year = { 2020 }, pages = { 027401 } }

TY - JOUR AU - Ahmed Ghalgaoui AU - Klaus Reimann AU - Michael Woerner AU - Thomas Elsaesser AU - Christos Flytzanis AU - K. Biermann TI - Frequency upshift of the transverse optical phonon resonance in GaAs by femtosecond electron-hole excitation JF - Physical Review Letters JA - Phys. Rev. Lett. J1 - PRL VL - 125 SP - 027401 PY - 2020/07/10

High-performance GaAs/AlAs terahertz quantum-cascade lasers for spectroscopic applications

@article{ author = { L. Schrottke and X. Lü and B. Röben and K. Biermann and T. Hagelschuer and M. Wienold and H.-W. Hübers and M. Hannemann and J. H. van Helden and J. Röpcke and H. T. Grahn }, title = { High-performance GaAs/AlAs terahertz quantum-cascade lasers for spectroscopic applications }, journal = { IEEE Transactions on Terahertz Science and Technology }, volume = { 10 }, year = { 2019 }, pages = { 133 } }

TY - JOUR AU - L. Schrottke AU - X. Lü AU - B. Röben AU - K. Biermann AU - T. Hagelschuer AU - M. Wienold AU - H.-W. Hübers AU - M. Hannemann AU - J. H. van Helden AU - J. Röpcke AU - H. T. Grahn TI - High-performance GaAs/AlAs terahertz quantum-cascade lasers for spectroscopic applications JF - IEEE Transactions on Terahertz Science and Technology JA - IEEE Trans. Terahertz Sci. Technol. J1 - VL - 10 SP - 133 PY - 2019/12/06

Frequency and power stabilization of a terahertz quantum-cascade laser using near-infrared optical excitation

@article{ author = { T. Alam and M. Wienold and X. Lü and K. Biermann and L. Schrottke and H. T. Grahn and H.-W. Hübers }, title = { Frequency and power stabilization of a terahertz quantum-cascade laser using near-infrared optical excitation }, journal = { Optics Express }, volume = { 27 }, year = { 2019 }, pages = { 36846 } }

TY - JOUR AU - T. Alam AU - M. Wienold AU - X. Lü AU - K. Biermann AU - L. Schrottke AU - H. T. Grahn AU - H.-W. Hübers TI - Frequency and power stabilization of a terahertz quantum-cascade laser using near-infrared optical excitation JF - Optics Express JA - Opt. Express J1 - VL - 27 SP - 36846 PY - 2019/12/04

Generation and propagation of super-high-frequency bulk acoustic wave on GaAs substrates

@article{ author = { Diego H. O. Machado and A. Crespo-Poveda and A. S. Kuznetsov and K. Biermann and Luis V. A. Scalvi and P. V. Santos }, title = { Generation and propagation of super-high-frequency bulk acoustic wave on GaAs substrates }, journal = { Physical Review Applied }, volume = { 12 }, year = { 2019 }, pages = { 044013 } }

TY - JOUR AU - Diego H. O. Machado AU - A. Crespo-Poveda AU - A. S. Kuznetsov AU - K. Biermann AU - Luis V. A. Scalvi AU - P. V. Santos TI - Generation and propagation of super-high-frequency bulk acoustic wave on GaAs substrates JF - Physical Review Applied JA - Phys. Rev. Applied J1 - VL - 12 SP - 044013 PY - 2019/10/07

Dynamic acousto-optical control of confined polariton condensates: From single traps to coupled lattices

@article{ author = { A. S. Kuznetsov and K. Biermann and P. V. Santos }, title = { Dynamic acousto-optical control of confined polariton condensates: From single traps to coupled lattices }, journal = { Physical Review Research }, volume = { 1 }, year = { 2019 }, pages = { 023030 } }

TY - JOUR AU - A. S. Kuznetsov AU - K. Biermann AU - P. V. Santos TI - Dynamic acousto-optical control of confined polariton condensates: From single traps to coupled lattices JF - Physical Review Research JA - Phys. Rev. Res. J1 - VL - 1 SP - 023030 PY - 2019/09/26

Impact of piezoelectric fields on coherent zone-folded phonons in GaAs/AlAs superlattices

@article{ author = { Felix Mahler and Klaus Reimann and Michael Woerner and Thomas Elsaesser and Christos Flytzanis and K. Biermann }, title = { Impact of piezoelectric fields on coherent zone-folded phonons in GaAs/AlAs superlattices }, journal = { Physical Review B: Solid State }, volume = { 100 }, year = { 2019 }, pages = { 121302 } }

TY - JOUR AU - Felix Mahler AU - Klaus Reimann AU - Michael Woerner AU - Thomas Elsaesser AU - Christos Flytzanis AU - K. Biermann TI - Impact of piezoelectric fields on coherent zone-folded phonons in GaAs/AlAs superlattices JF - Physical Review B: Solid State JA - Phys. Rev. B J1 - VL - 100 SP - 121302 PY - 2019/09/12

A compact 4.75-THz source based on a quantum-cascade laser with a back-facet mirror

@article{ author = { T. Hagelschuer and H. Richter and M. Wienold and X. Lü and B. Röben and L. Schrottke and K. Biermann and H. T. Grahn and H.-W. Hübers }, title = { A compact 4.75-THz source based on a quantum-cascade laser with a back-facet mirror }, journal = { IEEE Transactions on Terahertz Science and Technology }, volume = { 9 }, year = { 2019 }, pages = { 606 } }

TY - JOUR AU - T. Hagelschuer AU - H. Richter AU - M. Wienold AU - X. Lü AU - B. Röben AU - L. Schrottke AU - K. Biermann AU - H. T. Grahn AU - H.-W. Hübers TI - A compact 4.75-THz source based on a quantum-cascade laser with a back-facet mirror JF - IEEE Transactions on Terahertz Science and Technology JA - IEEE Trans. Terahertz Sci. Technol. J1 - VL - 9 SP - 606 PY - 2019/08/14

Sidewall Quantum Wires on GaAs(001) Substrates

@article{ author = { P. L. J. Helgers and H. Sanada and Y. Kunihashi and A. Rubino and C. J. B. Ford and K. Biermann and P. V. Santos }, title = { Sidewall Quantum Wires on GaAs(001) Substrates }, journal = { Physical Review Applied }, volume = { 11 }, year = { 2019 }, pages = { 064017 } }

TY - JOUR AU - P. L. J. Helgers AU - H. Sanada AU - Y. Kunihashi AU - A. Rubino AU - C. J. B. Ford AU - K. Biermann AU - P. V. Santos TI - Sidewall Quantum Wires on GaAs(001) Substrates JF - Physical Review Applied JA - Phys. Rev. Applied J1 - VL - 11 SP - 064017 PY - 2019/06/10

Attractive Dipolar Coupling between Stacked Exciton Fluids

@article{ author = { C. Hubert and Y. Baruchi and Y. Mazuz-Harpaz and K.Cohen and K. Biermann and M. Lemeshko and K. West and L. Pfeiffer and R. Rapaport and P. V. Santos }, title = { Attractive Dipolar Coupling between Stacked Exciton Fluids }, journal = { Physical Review X }, volume = { 9 }, year = { 2019 }, pages = { 021026 } }

TY - JOUR AU - C. Hubert AU - Y. Baruchi AU - Y. Mazuz-Harpaz AU - K.Cohen AU - K. Biermann AU - M. Lemeshko AU - K. West AU - L. Pfeiffer AU - R. Rapaport AU - P. V. Santos TI - Attractive Dipolar Coupling between Stacked Exciton Fluids JF - Physical Review X JA - Phys. Rev. X J1 - PRX VL - 9 SP - 021026 PY - 2019/05/08

Terahertz quantum-cascade lasers for high-resolution spectroscopy of sharp absorption lines

@article{ author = { B. Röben and X. Lü and K. Biermann and L. Schrottke and H. T. Grahn }, title = { Terahertz quantum-cascade lasers for high-resolution spectroscopy of sharp absorption lines }, journal = { Journal of Applied Physics }, volume = { 125 }, year = { 2019 }, pages = { 151613 } }

TY - JOUR AU - B. Röben AU - X. Lü AU - K. Biermann AU - L. Schrottke AU - H. T. Grahn TI - Terahertz quantum-cascade lasers for high-resolution spectroscopy of sharp absorption lines JF - Journal of Applied Physics JA - J. Appl. Phys. J1 - JAP VL - 125 SP - 151613 PY - 2019/04/05