Physikalisch-Technische Bundesanstalt

Entwicklung zeitaufgelöster optoelektronischer Messverfahren

[1] M. Bieler, M. Spitzer, H. Lecher, G. Hein, and U. Siegner, "Transfer of sub-5-ps electrical test pulses to coplanar and coaxial electronic devices", Electron. Lett. 38, 125 (2002).

[2] M. Bieler, M. Spitzer, G. Hein, and U. Siegner, "Time-domain characterization of non-coplanar high-frequency components up to 300 GHz", Electron. Lett. 38, 1038 (2002).

[3] M. Bieler, M. Spitzer, G. Hein, U. Siegner, F. Schnieder, T. Tischler, and W. Heinrich, "Broadband characterization of a microwave probe for picosecond electrical pulse measure-ments", Meas. Sci. Technol. 15, 1694 (2004).

[4] M. Bieler, G. Hein, K. Pierz, U. Siegner, and M. Koch, “Ultrafast electric field measurements in semiconductors by spectral integration over electric field-induced Franz-Keldysh oscillations”, Appl. Phys. Lett. 87, 42102 (2005).

[5] S. Seitz, M. Bieler, G. Hein, K. Pierz, U. Siegner, F.J. Schmückle, and W. Heinrich, "Characterization of an external electro-optic sampling probe: Influence of probe height on distortion of measured voltage pulses", J. Appl. Phys. 100, 113124 (2006).

[6] S. Seitz, M. Bieler, G. Hein, K. Pierz, U. Siegner, F.J. Schmückle, and W. Heinrich, "Correction of picosecond voltage pulses measured with external electro-optic sampling tips ", Meas. Sci. Technol. 18, 1353 (2007).

[7] M. Bieler, K. Pierz, and U. Siegner, “Simultaneous generation and detection of ultrashort voltage pulses in LT GaAs with below-bandgap laser pulses”, Appl. Phys. Lett. 94, 051108 (2009).

Kalibrierung der Zeitantwort von Sampling-Oszilloskopen

[1] M. Bieler, M. Spitzer, G. Hein, U. Siegner, and E. O. Göbel, "Ultrafast optics establishes metrological standards in high-frequency electronics", Appl. Phys. A 78, 429 (2004).

[2] S. Seitz, M. Bieler, M. Spitzer, K. Pierz, G. Hein, and U. Siegner, "Optoelectronic measurement of the transfer function and time response of a 70-GHz sampling oscilloscope", Meas. Sci. Technol. 16, L7 (2005).

[3] M. Bieler, S. Seitz, M. Spitzer, G. Hein, K. Pierz, U. Siegner, M.A. Basu, A.J.A. Smith, and M.R. Harper, “Rise-time Calibration of 50 GHz Sampling Oscilloscopes: Intercomparison between PTB and NPL”, IEEE Trans. Instrum. Meas. 56, 266 (2007).

[4] M. Bieler, M. Spitzer, K. Pierz, and U. Siegner, “Improved Optoelectronic Technique for the Time-Domain Characterization of Sampling Oscilloscopes”, IEEE Trans. Instrum. Meas. 58, 1065 (2009).

Grundlagenuntersuchungen zur Ladungsträger- und Stromdynamik in Halbleitern

[1] M. Bieler, G. Hein, K. Pierz, U. Siegner, and M. Koch, "Spatial pattern formation of optically excited carriers in photoconductive switches", Appl. Phys. Lett. 77, 1002-1004 (2000).

[2] M. Bieler, J. Hübner, M. Oestreich, M. Koch, G. Hein, K. Pierz, and U. Siegner, "Quantifying the drift velocity of carrier ensembles in time dependent electric fields", J. Appl. Phys. 91, 9869-9873 (2002).

[3] M. Bieler, K. Pierz, U. Siegner, and P. Dawson, “Quantum interference currents by excitation of heavy- and light-hole excitons in GaAs/Al0.3Ga0.7As quantum wells”, Phys. Rev. B. 73, 241312 (2006).

[4] M. Bieler, K. Pierz, and U. Siegner, “Simultaneous generation of shift and injection currents in (110)-grown GaAs/AlGaAs quantum wells“, J. Appl. Phys. 100, 083710 (2006).

[5] M. Bieler, K. Pierz, U. Siegner, and P. Dawson, “Shift currents from symmetry reduction and Coulomb effects in (110)-orientated GaAs/Al0.3Ga0.7As quantum wells”, Phys. Rev. B 76, 161304(R) (2007).

[6] G. Loata, M. Bieler, G. Hein, and U. Siegner, “Optically induced voltage pulses by resonant excitation of a passive GaAs photoconductive switch”, JOSA B 25, 1261 (2008).

[7] M. Bieler, “THz generation from resonant excitation of semiconductor nanostructures: Investigation of second-order nonlinear optical effects”, IEEE JSTQE 14, 458-469 (2008).

[8] M. Bieler, K. Pierz, U. Siegner, P. Dawson, H.T. Duc, J. Förstner, and T. Meier, “Generation of injection currents in (110)-oriented GaAs quantum wells: Experimental observation and development of a microscopic theory”, Proc. SPIE 7214 721404 (2009).

[9] A.M. Racu, S. Priyadarshi, M. Leidinger, U. Siegner, and M. Bieler, “Coherent control of ultrafast shift currents in GaAs with chirped optical pulses”, Opt. Letters 34, 2784 (2009).

[10] S. Priyadarshi, M. Leidinger, K. Pierz, A.M. Racu, U. Siegner, M. Bieler, and P. Dawson, “Terahertz spectroscopy of shift currents resulting from asymmetric 110-oriented GaAs/AlGaAs quantum wells”, Appl. Phys. Lett. 95, 151110 (2009).

[11] S. Priyadarshi, A. M. Racu, K. Pierz, U. Siegner, M. Bieler, H. T. Duc, J. Förstner, and T. Meier, “Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells“, Phys. Rev. Lett. 104, 217401 (2010).

Dissertationen

[1] M. Bieler, "Ultrafast Optoelectronic Switches: Physics of Pulse Generation and Applications to High-Frequency Device Characterization", Logos Verlag, Berlin, 2004

[2] S. Seitz, "Optimierung elektro-optischer Abtastverfahren für ultraschnelle elektrische Signale und Anwendungen in der Höchstfrequenzmesstechnik", 2007