M. Pristovsek, M. Zorn, M. Weyers
"In situ study of GaAs growth mechanisms using tri-methyl gallium and tri-ethyl gallium precursors in metal-organic vapour phase epitaxy"
Journal of Crystal Growth 262 (2004) 78-83.

J.W. Tomm, V. Strelchuk, A. Gerhardt, U. Zeimer, M. Zorn, H. Kissel, M. Weyers, and J. Jiménez
"Properties of As⁺-implanted and annealed GaAs and InGaAs quantum wells: Structural and band-structure modifications"
J. Appl. Phys. 95 (3), 1122-1126 (2004).

H. Wenzel, A. Klehr, M. Braun, F. Bugge, G. Erbert, J. Fricke, A. Knauer, M. Weyers, G. Tränkle
"High-power 783 nm distributed-feedback laser"
Electronics Letters, vol. 40, 123-124 (2004).

J. Grenzer, U. Zeimer, S.A. Grigorian, S. Feranchuk, U. Pietsch, J. Fricke, H. Kissel, A. Knauer, M. Weyers
"Nanoengineering of lateral strain modulation in quantum well heterostructures"
Physical Review B 69, 125316 (2004).

G. Beister, H. Wenzel
"Comparison of surface and bulk contributions to non-radiative currents in InGaAs/AlGaAs laser diodes"
Semicond. Sci. Technol. 19 (2004) 494-500.

S. von der Mark, M. Huber, M. Wittwer, W. Heinrich, and G. Boeck
"System architecture for low power 24 GHz front end"
Frequenz, Journal of Telecommunications, Vol. 58, March/April 2004, pp. 70-73.

A. Knauer, P. Krispin, V.R. Balakrishnan, H. Kissel and M. Weyers
"Interlayer formation due to group V-hydride stabilization during interruptions of MOVPE growth of InGaP"
Semicond. Sci. Technol. 19 (2004) 680-684.

B. Sumpf, G. Beister, G. Erbert, J. Fricke, A. Knauer, P. Ressel, and G.  Tränkle
"Reliable 1-W CW Operation of High-Brightness Tapered Diode Lasers at 735 nm"
IEEE Photonics Technology Letters, vol. 16, 984-986 (2004).

M. Rudolph
"Uniqueness Problems in Compact HBT Models Caused by Thermal Effects"
IEEE Trans. Microwave Theory Tech., vol. 52, no. 5, pp. 1399-1403, May 2004.

L. Borruel, S. Sujecki, P. Moreno, J. Wykes, M. Krakowski, B. Sumpf, P. Sewell, S. Auzanneau, H. Wenzel, D. Rodríguez, T. Benson, E. Larkins, I. Esquivias
"Quasi-3-D Simulation of High-Brightness Tapered Lasers"
IEEE J. Quantum Electron. vol. 40, S. 463-472, May 2004.

S. Schwertfeger, A. Klehr, G. Erbert, G. Tränkle
"Compact Hybrid Master Oscillator Power Amplifier With 3.1−W CW Output Power at Wavelengths Around 1061 nm"
IEEE Photon. Techn. Lett., vol. 16, S. 1268-1270, May 2004.

P. Klopp, V. Petrov, U. Griebner, K. Petermann and V. Peters, G. Erbert
"Highly efficient mode-locked Yb:Sc₂O₃ laser"
Optics Letters, vol. 29, pp. 391-393, 2004.

M. Rudolph, R. Doerner
"Large-Signal HBT Model Requirements to Predict Nonlinear Behaviour"
IEEE MTT-S Int. Microwave Symp. Dig., 2004, pp. 43-46.

M. Steinhauer, H. Irion, M. Schott, M. Thiel, H.-O. Ruoss, W. Heinrich
"SiGe-Based Circuits for Sensor Applications beyond 100 GHz"
IEEE MTT-S Int. Microwave Symp. Dig., 2004, pp. 223-226.

M. Kunze, P. Talukder, F.J. Schmückle, W. Heinrich, D. Ferling, and K. Adam
"120 GHz Broadband Chip-Interconnects for High Bit-Rate Communication Systems"
IEEE MTT-S Int. Microwave Symp. Dig., 2004, pp. 485-488.

F. Lenk, M. Schott, J. Hilsenbeck, and W. Heinrich
"Optimizing MMIC Reflection-Type Oscillators"
IEEE MTT-S Int. Microwave Symp. Dig., 2004, pp. 1341-1344.

E.T.K. Dalton, M. Kunze, W. Heinrich, M.M. Tentzeris
"A Hybrid FDTD/Quasistatic Technique Including Effects of Lossy Metals"
IEEE MTT-S Int. Microwave Symp. Dig., 2004, pp. 1709-1712.

M. Bieler, M. Spitzer, G. Hein, U. Siegner, F. Schnieder, T. Tischler, W. Heinrich
"Broadband characterization of a microwave probe for picosecond electrical pulse measurements"
Measurement Science and Technology, vol. 15 (2004), no. 9, pp. 1694-1701.

V.I. Zubkov, M.A. Melnik, A.V. Solomonov, E.O. Tsvelev, F. Bugge, M. Weyers, and G. Tränkle
"Determination of band offsets in strained In_xGa_1-xAs/GaAs quantum wells by capacitance-voltage profiling and Schrödinger-Poisson self-consistent simulation"
Phys. Rev. B 70, 075312 (2004).

C. Meliani, M. Rudolph, J. Hilsenbeck, and W. Heinrich
"A 40 Gbps Broadband Amplifier for Modulator-Driver Applications Using a GaAs HBT Technology"
IEEE BCTM Bipolar/BiCMOS Circuits and Technology Meeting Dig., 2004, pp. 281-284.

Ch. Meliani, M. Rudolph, J. Hilsenbeck, W. Heinrich
"A GaAs-HBT Broadband Amplifier with Near-fT Cut-off Frequency for High-Bitrate Transmission"
Dig. 34th European Microwave Conference, Amsterdam, 2004, p. 341-344.

F. Lenk, M. Schott, J. Hilsenbeck, W. Heinrich
"Low Phase-Noise GaAs-HBT Monolithic W-Band Oscillator"
Dig. 34th European Microwave Conference, Amsterdam, 2004, p. 897-900.

M. Rudolph, P. Heymann
"The Influence of Microwave Two-Port Noise on Residual Phase Noise in GaAs-HBTs"
Dig. 34th European Microwave Conference, Amsterdam, 2004, p. 945-948.

K. Linkenheil, H.-O. Ruoß, W. Heinrich
"Design and Evaluation of a Novel Spark-Plug Based on a Microwave Coaxial Resonator"
Dig. 34th European Microwave Conference, Amsterdam, 2004, p. 1561-1564.

J. Würfl, M. Schlechtweg
"Frontiers of III-V Compounds and Devices"
Dig. 12th GAAS Symposium, Amsterdam, 2004, p. 195-198.

M. Rudolph, F. Schnieder, W. Heinrich
"Investigation of Thermal Crunching Effects in Fishbone-Type Layout Power GaAs-HBTs"
Dig. 12th GAAS Symposium, Amsterdam, 2004, p. 435-438.

Ch. Meliani, M. Rudolph, J. Hilsenbeck, W. Heinrich
"A GaAs-HBT Broadband Amplifier with Near-f_T Cut-off Frequency for High-Bitrate Transmission"
Dig. 12th GAAS Symposium, Amsterdam, 2004, p. 535-538.

A. Maaßdorf, P. Kurpas, F. Brunner, M. Weyers, G. Tränkle
"Investigation of Breakdown and DC Behavior in HBTs With (Al,Ga)As Collector Layer"
IEEE Electron Device Letters, vol. 25, no. 10, pp. 672-674, October 2004.

K. Paschke, B. Sumpf, F. Dittmar, G. Erbert, J. Fricke, A. Knauer, S. Schwertfeger, H. Wenzel, G. Tränkle
"Nearly-diffraction limited 980 nm tapered diode lasers with an output power of 6.7 W"
Conf. Dig. 19th ISLC, Matsue/Japan, IEEE 2004, pp. 43-44, September 2004.

G. Erbert, F. Bugge, J. Fricke, P. Ressel, R. Staske, B. Sumpf, H. Wenzel, M. Weyers, G. Tränkle
"High-power, high-efficient 1150 nm quantum well laser"
Conf. Dig. 19th ISLC, Matsue/Japan, IEEE 2004, pp. 41-42, September 2004.

A. Knigge, G. Erbert, P. Ressel, R. Staske, B. Sumpf, H. Wenzel, G. Tränkle
"100W-output power from passively cooled laser bar with 30 % filling factor"
Conf. Dig. 19th ISLC, Matsue/Japan, IEEE 2004, pp. 35-36, September 2004.

R. Güther
"Abstrahlungsverluste bei Bragg-Gitter-Beugung höherer Ordnung in Wellenleitern"
DGaO-Proceedings, P29, 2004.

A. Knauer, P. Krispin, V.R. Balakrishnan, M. Weyers
"Defect study of MOVPE-grown InGaP layers on GaAs"
J. Crystal Growth 272 (2004) 627-632.

R. Steins, N. Kaluza, H. Hardtdegen, M. Zorn, K. Haberland and J.-T. Zettler
"Use of SiC band gap temperature dependence for absolute calibration of emissivity corrected pyrometers in III-nitride MOVPE"
J. Crystal Growth 272 (2004) 81-86.

F. Brunner, S. Weeke, M. Zorn and M. Weyers
"Growth monitoring of GaAsSb:C/InP heterostructures with reflectance anisotropy spectroscopy"
J. Crystal Growth 272 (2004) 111-117.

F. Bugge, U. Zeimer, H. Wenzel, G. Erbert and M. Weyers
"Interdiffusion in highly strained InGaAs-QWs for high power laser diode applications"
J. Crystal Growth 272 (2004) 531-537.

M.F. Pereira, Jr., H. Wenzel
"Interplay of Coulomb and nonparabolicity effects in the intersubband absorption of electrons and holes in quantum wells"
Physical Review B 70, 205331-205338 (2004).

K. Zoschke, J. Wolf, M. Toepper, O. Ehrmann, T. Fritzsch, K. Scherpinski, H. Reichl, F.−J. Schmückle
"Thin Film Integration of Passives - Single Components, Filters, Integrated Passive Devices"
Electronic Components and Technology Conference, 1 - 4 June 2004, Las Vegas, Nevada USA, pp. 294-301 and in
CARTS Europe, 18 - 21 October 2004, Nice, France, pp. 126-134.

F. Lenk, M. Schott, J. Hilsenbeck, and W. Heinrich
"A New Design Approach for Low Phase-Noise Reflection-Type MMIC Oscillators"
IEEE Trans. Microwave Theory Tech., vol. 52, no. 12, pp. 2725-2731, Dec. 2004.

C. Meliani, P. Talukder, J. Hilsenbeck, M. Huber, G. Böck and W. Heinrich
"Integrated Circuits and 3D-Packaging for Low-Power 24 GHz Front End"
Frequenz 58 (2004).

D. Rodríguez, L. Borruel, I. Esquivias, H. Wenzel, B. Sumpf, and G. Erbert
"CW Technique for Measurement of Linewidth Enhancement Factor: Application to 735-nm Tensile-Strained GaAsP Quantum-Well Lasers"
IEEE Photonics Technology Letters, vol. 16, 1432-1434, 2004.

H. Wenzel, A. Klehr, M. Braun, F. Bugge, G. Erbert, J. Fricke, A. Knauer, P. Ressel, B. Sumpf, M. Weyers, and G. Tränkle
"Design and realization of high-power DFB lasers"
SPIE Proceedings vol. 5595, 110-123, 2004.

G. Hebermehl, J. Schefter, R. Schlundt, Th. Tischler, H. Zscheile, W. Heinrich
"Simulation of microwave circuits and laser structures including PML by means of FIT"
Adv. Radio Sci., vol. 2, pp. 107-112 (2004).