1-20 of 22
K. Biermann
Close
Save search
Follow your search
Access your saved searches in your account
Close Modal
Sort by
Journal Articles

Long-term stability of GaAs/AlAs terahertz quantum-cascade lasers

L. Schrottke, X. Lü, K. Biermann, P. Gellie, H. T. Grahn
Journal: AIP Advances
AIP Advances 12, 085122 (2022)
https://doi.org/10.1063/5.0098782
Published: August 2022
View article titled, Long-term stability of GaAs/AlAs terahertz quantum-cascade lasers
Open the PDF for Long-term stability of GaAs/AlAs terahertz quantum-cascade lasers in another window
Journal Articles

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

B. Röben, X. Lü, K. Biermann, L. Schrottke, H. T. Grahn
Journal: Journal of Applied Physics
J. Appl. Phys. 125, 151613 (2019)
https://doi.org/10.1063/1.5079701
Published: April 2019
View article titled, Terahertz quantum-cascade lasers for high-resolution spectroscopy of sharp absorption lines
Open the PDF for Terahertz quantum-cascade lasers for high-resolution spectroscopy of sharp absorption lines in another window
Journal Articles

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

X. Lü, E. Luna, L. Schrottke, K. Biermann, H. T. Grahn
Journal: Applied Physics Letters
Appl. Phys. Lett. 113, 172101 (2018)
https://doi.org/10.1063/1.5042326
Published: October 2018
View article titled, Determination of the interface parameter in terahertz quantum-cascade laser structures based on transmission electron microscopy
Open the PDF for Determination of the interface parameter in terahertz quantum-cascade laser structures based on transmission electron microscopy in another window
Journal Articles

Intrinsic frequency tuning of terahertz quantum-cascade lasers

L. Schrottke, X. Lü, B. Röben, K. Biermann, M. Wienold, H. Richter, H.-W. Hübers, H. T. Grahn
Journal: Journal of Applied Physics
J. Appl. Phys. 123, 213102 (2018)
https://doi.org/10.1063/1.5024480
Published: May 2018
View article titled, Intrinsic frequency tuning of terahertz quantum-cascade lasers
Open the PDF for Intrinsic frequency tuning of terahertz quantum-cascade lasers in another window
Journal Articles

Nanostructuring of conduction channels in (In,Ga)As-InP heterostructures: Overcoming carrier generation caused by Ar ion milling

V. Hortelano, H. Weidlich, M. P. Semtsiv, W. T. Masselink, M. Ramsteiner, U. Jahn, K. Biermann, Y. Takagaki
Journal: Applied Physics Letters
Appl. Phys. Lett. 112, 151602 (2018)
https://doi.org/10.1063/1.5022967
Published: April 2018
View article titled, Nanostructuring of conduction channels in (In,Ga)As-InP heterostructures: Overcoming carrier generation caused by Ar ion milling
Open the PDF for Nanostructuring of conduction channels in (In,Ga)As-InP heterostructures: Overcoming carrier generation caused by Ar ion milling in another window
Journal Articles

Terahertz gas spectroscopy through self-mixing in a quantum-cascade laser

T. Hagelschuer, M. Wienold, H. Richter, L. Schrottke, K. Biermann, H. T. Grahn, H.-W. Hübers
Journal: Applied Physics Letters
Appl. Phys. Lett. 109, 191101 (2016)
https://doi.org/10.1063/1.4967435
Published: November 2016
View article titled, Terahertz gas spectroscopy through self-mixing in a quantum-cascade laser
Open the PDF for Terahertz gas spectroscopy through self-mixing in a quantum-cascade laser in another window
Journal Articles

Real-time terahertz imaging through self-mixing in a quantum-cascade laser

M. Wienold, T. Hagelschuer, N. Rothbart, L. Schrottke, K. Biermann, H. T. Grahn, H.-W. Hübers
Journal: Applied Physics Letters
Appl. Phys. Lett. 109, 011102 (2016)
https://doi.org/10.1063/1.4955405
Published: July 2016
View article titled, Real-time terahertz imaging through self-mixing in a quantum-cascade laser
Open the PDF for Real-time terahertz imaging through self-mixing in a quantum-cascade laser in another window
Journal Articles

Terahertz GaAs/AlAs quantum-cascade lasers

L. Schrottke, X. Lü, G. Rozas, K. Biermann, H. T. Grahn
Journal: Applied Physics Letters
Appl. Phys. Lett. 108, 102102 (2016)
https://doi.org/10.1063/1.4943657
Published: March 2016
View article titled, Terahertz GaAs/AlAs quantum-cascade lasers
Open the PDF for Terahertz GaAs/AlAs quantum-cascade lasers in another window
Journal Articles

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

M. Wienold, B. Röben, X. Lü, G. Rozas, L. Schrottke, K. Biermann, H. T. Grahn
Journal: Applied Physics Letters
Appl. Phys. Lett. 107, 202101 (2015)
https://doi.org/10.1063/1.4935942
Published: November 2015
View article titled, Frequency dependence of the maximum operating temperature for quantum-cascade lasers up to 5.4 THz
Open the PDF for Frequency dependence of the maximum operating temperature for quantum-cascade lasers up to 5.4 THz in another window
Journal Articles

Ultrafast supercontinuum fiber-laser based pump-probe scanning magneto-optical Kerr effect microscope for the investigation of electron spin dynamics in semiconductors at cryogenic temperatures with picosecond time and micrometer spatial resolution

T. Henn, T. Kiessling, W. Ossau, L. W. Molenkamp, K. Biermann, P. V. Santos
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 84, 123903 (2013)
https://doi.org/10.1063/1.4842276
Published: December 2013
View article titled, Ultrafast supercontinuum fiber-laser based pump-probe scanning magneto-optical Kerr effect microscope for the investigation of electron spin dynamics in semiconductors at cryogenic temperatures with picosecond time and micrometer spatial resolution
Open the PDF for Ultrafast supercontinuum fiber-laser based pump-probe scanning magneto-optical Kerr effect microscope for the investigation of electron spin dynamics in semiconductors at cryogenic temperatures with picosecond time and micrometer spatial resolution in another window
Journal Articles

Mid-infrared-pumped, electrically driven terahertz quantum laser: Enhanced pumping efficiency and prevention of electric-field domains

X. Lü, M. Wienold, L. Schrottke, K. Biermann, H. T. Grahn
Journal: Journal of Applied Physics
J. Appl. Phys. 113, 033103 (2013)
https://doi.org/10.1063/1.4776762
Published: January 2013
View article titled, Mid-infrared-pumped, electrically driven terahertz quantum laser: Enhanced pumping efficiency and prevention of electric-field domains
Open the PDF for Mid-infrared-pumped, electrically driven terahertz quantum laser: Enhanced pumping efficiency and prevention of electric-field domains in another window
Journal Articles

Electrically tunable electron spin lifetimes in GaAs(111)B quantum wells

K. Biermann, A. Hernández-Mínguez, R. Hey, P. V. Santos
Journal: Journal of Applied Physics
J. Appl. Phys. 112, 083913 (2012)
https://doi.org/10.1063/1.4759241
Published: October 2012
View article titled, Electrically tunable electron spin lifetimes in GaAs(111)B quantum wells
Open the PDF for Electrically tunable electron spin lifetimes in GaAs(111)B quantum wells in another window
Journal Articles

Polariton Condensation In One‐ And Two‐ Dimensional Acoustic Lattices

E. A. Cerda‐Méndez, D. N. Krizhanovskii, K. Biermann, M. Wouters, R. Hey, P. V. Santos, M. S. Skolnick
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1399, 1031–1032 (2011)
https://doi.org/10.1063/1.3666731
Published: December 2011
View article titled, Polariton Condensation In One‐ And Two‐ Dimensional Acoustic Lattices
Open the PDF for Polariton Condensation In One‐ And Two‐ Dimensional Acoustic Lattices in another window
Journal Articles

Effect of stimulated emission on the transport characteristics of terahertz quantum-cascade lasers

R. Sharma, L. Schrottke, M. Wienold, K. Biermann, R. Hey, H. T. Grahn
Journal: Applied Physics Letters
Appl. Phys. Lett. 99, 151116 (2011)
https://doi.org/10.1063/1.3653262
Published: October 2011
View article titled, Effect of stimulated emission on the transport characteristics of terahertz quantum-cascade lasers
Open the PDF for Effect of stimulated emission on the transport characteristics of terahertz quantum-cascade lasers in another window
Journal Articles

Kerr detection of acoustic spin transport in GaAs (110) quantum wells

A. Hernández-Mínguez, K. Biermann, S. Lazić, R. Hey, P. V. Santos
Journal: Applied Physics Letters
Appl. Phys. Lett. 97, 242110 (2010)
https://doi.org/10.1063/1.3524218
Published: December 2010
View article titled, Kerr detection of acoustic spin transport in GaAs (110) quantum wells
Open the PDF for Kerr detection of acoustic spin transport in GaAs (110) quantum wells in another window
Journal Articles

Electronic channels for acoustic transport in semiconductor heterostructures

K. Biermann, O. D. D. Couto, Jr., W. Seidel, R. Hey, P. V. Santos
Journal: Applied Physics Letters
Appl. Phys. Lett. 96, 162106 (2010)
https://doi.org/10.1063/1.3407672
Published: April 2010
View article titled, Electronic channels for acoustic transport in semiconductor heterostructures
Open the PDF for Electronic channels for acoustic transport in semiconductor heterostructures in another window
Journal Articles

Electrical detection of ambipolar acoustic carrier transport by surface acoustic waves

S. J. Jiao, P. D. Batista, K. Biermann, R. Hey, P. V. Santos
Journal: Journal of Applied Physics
J. Appl. Phys. 106, 053708 (2009)
https://doi.org/10.1063/1.3211861
Published: September 2009
View article titled, Electrical detection of ambipolar acoustic carrier transport by surface acoustic waves
Open the PDF for Electrical detection of ambipolar acoustic carrier transport by surface acoustic waves in another window
Journal Articles

Intersubband relaxation dynamics in single and double quantum wells based on strained In Ga As ∕ Al As ∕ Al As Sb

C. V.-B. Grimm, M. Priegnitz, S. Winnerl, H. Schneider, M. Helm, K. Biermann, H. Künzel
Journal: Applied Physics Letters
Appl. Phys. Lett. 91, 191121 (2007)
https://doi.org/10.1063/1.2809409
Published: November 2007
View article titled, Intersubband relaxation dynamics in single and double quantum wells based on strained In Ga As ∕ Al As ∕ Al As Sb
Open the PDF for Intersubband relaxation dynamics in single and double quantum wells based on strained In Ga As ∕ Al As ∕ Al As Sb in another window
Journal Articles

Intersubband Relaxation Dynamics in Narrow InGaAs/AlAsSb Quantum Well Structures Studied by Femtosecond Pump‐Probe Spectroscopy

C. V.‐B. Tribuzy, S. Ohser, S. Winnerl, J. Grenzer, H. Schneider, M. Helm, J. Neuhaus, T. Dekorsy, K. Biermann, H. Künzel
Journal: AIP Conference Proceedings
AIP Conf. Proc. 893, 473–474 (2007)
https://doi.org/10.1063/1.2729971
Published: April 2007
View article titled, Intersubband Relaxation Dynamics in Narrow InGaAs/AlAsSb Quantum Well Structures Studied by Femtosecond Pump‐Probe Spectroscopy
Open the PDF for Intersubband Relaxation Dynamics in Narrow InGaAs/AlAsSb Quantum Well Structures Studied by Femtosecond Pump‐Probe Spectroscopy in another window
Journal Articles

Femtosecond pump-probe spectroscopy of intersubband relaxation dynamics in narrow In Ga As ∕ Al As Sb quantum well structures

C. V.-B. Tribuzy, S. Ohser, S. Winnerl, J. Grenzer, H. Schneider, M. Helm, J. Neuhaus, T. Dekorsy, K. Biermann, H. Künzel
Journal: Applied Physics Letters
Appl. Phys. Lett. 89, 171104 (2006)
https://doi.org/10.1063/1.2360242
Published: October 2006
View article titled, Femtosecond pump-probe spectroscopy of intersubband relaxation dynamics in narrow In Ga As ∕ Al As Sb quantum well structures
Open the PDF for Femtosecond pump-probe spectroscopy of intersubband relaxation dynamics in narrow In Ga As ∕ Al As Sb quantum well structures in another window