Publikationen

Mode competition in broad-ridge-waveguide lasers

Semicond. Sci. Technol., vol. 36, no. 01, pp. 015014, doi:10.1088/1361-6641/abc6e7 (2021).

J.-P. Koester, A. Putz, H. Wenzel, H.-J. Wünsche, M. Radziunas, H. Stephan, M. Wilkens, A. Zeghuzi and A. Knigge

Shifted excitation Raman difference spectroscopy: A promising tool for the investigation of soil

Eur. J. Soil Sci., vol. 72, no. 1, pp. 120-124 (2021).

L.S. Theurer, M. Maiwald, B. Sumpf

Compact and Highly Efficient Kilowatt Lumped Push-Pull Power Amplifier for Cyclotron in Radioisotopes Production

IEEE Trans. Microwave Theory Tech., vol. 69, no. 1, pp. 723-731 (2021).

R. Tong, O. Bengtsson, A. Bäcklund, and D. Dancila

The Bose-Einstein Condensate and Cold Atom Laboratory

EPJ Quantum Technol., vol. 8, no. 1, doi:10.1140/epjqt/s40507-020-00090-8 (2021).

K. Frye, S. Abend, W. Bartosch, A. Bawamia, D. Becker, H. Blume, C. Braxmaier, S.-W. Chiow, M.A. Efremov, W. Ertmer, P. Fierlinger, T. Franz, N. Gaaloul, J. Grosse, C. Grzeschik, O. Hellmig, V.A. Henderson, W. Herr, U. Israelsson, J. Kohel, M. Krutzik, C. Kürbis, C. Lämmerzahl, M. List, D. Lüdtke, N. Lundblad, J.P. Marburger, M. Meister, M. Mihm, H. Müller, H. Müntinga, A.M. Nepal, T. Oberschulte, A. Papakonstantinou, J. Perovšek, A. Peters, A. Prat, E.M. Rasel, A. Roura, M. Sbroscia, W.P. Schleich, C. Schubert, S.T. Seidel, J. Sommer, C. Spindeldreier, D. Stamper-Kurn, B.K. Stuhl, M. Warner, T. Wendrich, A. Wenzlawski, A. Wicht, P. Windpassinger, N. Yu and L. Wörner

Semimetal to semiconductor transition in Bi/TiO₂ core/shell nanowires

Nanoscale Adv., vol. 3, no. 1, pp. 263-271, doi:10.1039/D0NA00658K (2021).

M. Kockert, R. Mitdank, H. Moon, J. Kim, A. Mogilatenko, S.H. Moosavi, M. Kroener, P. Woias, W. Lee and S.F. Fischer

Connecting Chips With More Than 100 GHz Bandwidth

IEEE J. Microwaves, vol. 1, no. 1, pp. 364-373, doi:10.1109/JMW.2020.3032879 (2021).

W. Heinrich, M. Hossain, S. Sinha, F.-J. Schmückle, R. Doerner, V. Krozer, and N. Weimann

High-Brightness Nanosecond-Pulse Operation From Tapered-Ridge-Waveguide Lasers

IEEE Photonics Technol. Lett., vol. 33, no. 3, pp. 151-154 (2021).

A. Zeghuzi, Christopher, A. Klehr, J.-P. Koester, H. Wenzel, and A. Knigge

A 310 nm Optically Pumped AlGaN Vertical-Cavity Surface-Emitting Laser

ACS Photonics, vol. 8, no. 1, pp. 135-141, doi:10.1021/acsphotonics.0c01382 (2021).

F. Hjort, J. Enslin, M. Cobet, M.A. Bergmann, J. Gustavsson, T. Kolbe, A. Knauer, F. Nippert, I. Häusler, M.R. Wagner, T. Wernicke, M. Kneissl, and Å. Haglund

Broadband Sensing Around 1 THz Via a Novel Biquad-Antenna-Coupled Low-NEP Detector in CMOS

IEEE Trans. Terahertz Sci. Technol., vol. 11, no. 1, pp. 16-27 (2021).

M. Ferreras, D. Cibiraite-Lukenskiene, A. Lisauskas, J. Grajal, and V. Krozer

Laser systems enable quantum technology in space

Laser Focus World, vol. 57, no. 1, pp. 38-42 (2021).

A. Thoss, A. Wicht, V. Henderson, and M. Krutzik

Analysis and Optimization of Packaged Floating-Ground RF Power GaN-HEMTs

Proc. 50th European Microwave Conference (EuMC 2020), Utrecht, Netherlands, Jan. 12-14, pp. 1151-1154 (2021).

S. Paul, W. Heinrich, O. Bengtsson

Improved Modeling of Radiation Effects in Coplanar Waveguides with Finite Ground Width

Proc. 50th European Microwave Conference (EuMC 2020), Utrecht, Netherlands, Jan. 12-14, pp. 404-407 (2021).

G.N. Phung, U. Arz, K. Kuhlmann, R. Doerner, and W. Heinrich

A 119 GHz Bandwidth Distributed Amplifier with a ±2 ps Group Delay Variation

Proc. 50th European Microwave Conference (EuMC 2020), Utrecht, Netherlands, Jan. 12-14, pp. 199-202 (2021).

B. van de Ven, T. Shivan, X. Liu, M. Hossain, V. Krozer, M. Matters-Kammerer

D-band Transmission Hub for Point to MultiPoint Wireless Distribution

Proc. 50th European Microwave Conference (EuMC 2020), Utrecht, Netherlands, Jan. 12-14, pp. 157-160 (2021).

M. Hossain, V. Krozer, T. Le, R. Bas, R. Letizia, E. Limiti, F. Magne, M. Marilier, A. Ramirez, J.M. Rao, G. Ulisse, B. Vidal, H. Yacoub, C. Paoloni

A W-Band Transceiver Chip for Future 5G Communications in InP-DHBT Technology

Proc. 15th European Microwave Integrated Circuits Conference (EuMIC 2020), Utrecht, Netherlands, Jan. 11-12, pp. 193-196 (2021).

M. Hossain, T. Shivan, M. Hrobak, T. Al-Sawaf, D. Stoppel, H. Yacoub, N. Weimann, W. Heinrich and V. Krozer

Modeling of InP DHBTs in a Transferred-Substrate Technology with Diamond Heat Spreader

Proc. 15th European Microwave Integrated Circuits Conference (EuMIC 2020), Utrecht, Netherlands, Jan. 11-12, pp. 169-172 (2021).

T.K. Johansen, M. Hossain, R. Doerner, H. Yacoub, K. Nosaeva, T. Shivan, W. Heinrich, V. Krozer

Simulating Drain Lag of GaN HEMTs with physics-based ASM model

Proc. 15th European Microwave Integrated Circuits Conference (EuMIC 2020), Utrecht, Netherlands, Jan. 11-12, pp. 165-168 (2021).

P. Beleniotis, F. Schnieder, M. Rudolph

Measuring the sensitivity to optical feedback of single-frequency high-power laser diodes

J. Opt. Soc. Am. B, vol. 38, no. 3, pp. 885-892 (2021).

M. Christensen, C. Zink, M.T. Jamal, A.K. Hansen, O.B. Jensen, and B. Sumpf

Spatial filtering of a six-wavelength DBR-RW laser in a MOPA system

Appl. Opt., vol. 60, no. 7, pp. 1864-1870 (2021).

M. Tawfieq, J. Fricke, C. Stölmacker, P. Della Casa, P.E. Andersen, B. Sumpf, and G. Tränkle

On the Conduction Properties of Vertical GaN n-Channel Trench MISFETs

IEEE J. Electron Devices Soc., vol. 9, pp. 215-228, doi:10.1109/JEDS.2021.3056697 (2021).

E. Bahat Treidel, O. Hilt, V. Hoffmann, F. Brunner, N. Bickel, A. Thies, K. Tetzner, H. Gargouri, C. Huber, K. Donimirski, and J. Würfl

Accurate in vivo tumor detection using plasmonic-enhanced shifted-excitation Raman difference spectroscopy (SERDS)

Theranostics, vol. 11, no. 9, pp. 4090-4102, doi:10.7150/thno.53101 (2021).

P. Strobbia, V. Cupil-Garcia, B.M. Crawford, A.M. Fales, T.J. Pfefer, Y. Liu, M. Maiwald, B. Sumpf, T. Vo-Dinh

Ultracold atom interferometry in space

Nat. Commun., vol. 12, art. 1317, doi:10.1038/s41467-021-21628-z (2021).

M.D. Lachmann, H. Ahlers, D. Becker, A.N. Dinkelaker, J. Grosse, O. Hellmig, H. Müntinga, V. Schkolnik, S.T. Seidel, T. Wendrich, A. Wenzlawski, B. Carrick, N. Gaaloul, D. Lüdtke, C. Braxmaier, W. Ertmer, M. Krutzik, C. Lämmerzahl, A. Peters, W.P. Schleich, K. Sengstock, A. Wicht, P. Windpassinger & E.M. Rasel

A 1.4 kW 780 nm pulsed diode laser, high duty cycle, passively side-cooled pump module

Opt. Express, vol. 29, no. 7, pp. 9749-9757, doi:10.1364/OE.416527 (2021).

M. Hübner, M. Wilkens, B. Eppich, A. Maaßdorf, D. Martin, A. Ginolas, P.S. Basler, and P. Crump

A Modular MIMO Millimeter-Wave Imaging Radar System for Space Applications and Its Components

J. Infrared Milli. Terahz. Waves, vol. 42, no. 3, pp. 275-324 (2021).

M. Hrobak, K. Thurn, J. Moll, M. Hossain, A. Shrestha, T. Al-Sawaf, D. Stoppel, N.G. Weimann, A. Rämer, W. Heinrich, J. Martinez, M. Vossiek, T.K. Johansen, V. Krozer, M. Resch, J. Bosse, M. Sterns, K. Loebbicke, S. Zorn, M. Eissa, M. Lisker, F. Herzel, R. Miesen, K. Vollmann

Influence of the hydrogen level in (InAlGa)N-based laser diodes on the stability of the device’s operating voltage

J. Phys. D: Appl. Phys., vol. 54, no. 13, pp. 135103 (2021).

E. Freier, J. Glaab, J. Ruschel, V. Hoffmann, J.H. Kang, M. Norman-Reiner, H. Wenzel, M. Kneissl, and S. Einfeldt

Roadmap on quantum nanotechnologies

Nanotechnology, vol. 32, no. 16, pp. 162003, doi:10.1088/1361-6528/abb333 (2021).

A. Laucht, F. Hohls, N. Ubbelohde, M.F. Gonzalez-Zalba, D.J. Reilly, S. Stobbe, T. Schröder, P. Scarlino, J.V. Koski, A. Dzurak, C.-H. Yang, J. Yoneda, F. Kuemmeth, H. Bluhm, J. Pla, C. Hill, J. Salfi, A. Oiwa, J.T. Muhonen, E. Verhagen, M.D. LaHaye, H.H. Kim, A.W. Tsen, D. Culcer, A. Geresdi, J.A. Mol, V. Mohan, P.K. Jain and J. Baugh

Sub-THz wireless system with electronic and optoelectronic transmitters

Proc. of SPIE, vol. 11711, Broadband Access Communication Technologies XV, Photonics West, Online Only, Mar 6-11, 117110J (2021).

C. Paoloni, R. Basu, M. Burhenn, M. Hossain, D. Heubcsh, V. Krozer, T. Le, R. Letizia, E. Limiti, F. Magne, M. Marilier, A. Ramirez, J.M. Rao, G. Ulisse, B. Vidal, H. Yacob

Narrow spectral linewidth 785 nm DBR tapered lasers with 7 W output power

Proc. of SPIE, vol. 11705, Novel In-Plane Semiconductor Lasers XX, Photonics West, Online Only, Mar 6-11, 117050O (2021).

B. Sumpf, L.S. Theurer, M. Maiwald, A. Müller, A. Maaßdorf, J. Fricke, P. Ressel, G. Tränkle

Enhanced self-aligned structure for improved lateral brightness in 940nm high-power broad-area diode lasers

Proc. of SPIE, vol. 11705, Novel In-Plane Semiconductor Lasers XX, Photonics West, Online Only, Mar 6-11, 117050N (2021).

M. Elattar, O. Brox, P. Della Casa, A. Maaßdorf, D. Martin, H. Wenzel, A. Knigge, and P. Crump

Single-pass tapered semiconductor optical amplifiers and modules for efficient coherent beam combining

Proc. of SPIE, vol. 11705, Novel In-Plane Semiconductor Lasers XX, Photonics West, Online Only, Mar 6-11, 117050M (2021).

P. Crump, G. Blume, D. Feise, M. Elattar, A. Ginolas, J. Fricke, A. Maaßdorf, G. Tränkle, K. Paschke, P. Albrodt, J. Hamperl, P. Georges and G. Lucas-Leclin

On the carrier kinetics in Al(In)GaN quantum wells stressed by high current densities

Proc. of SPIE, vol. 11705, Novel In-Plane Semiconductor Lasers XX, Photonics West, Online Only, Mar 6-11, 117050E (2021).

J.W. Tomm, J. Ruschel, J. Glaab, F. Mahler, T. Kolbe, S. Einfeldt

Alternating dual-wavelength second harmonic generation at 532 nm using a Y-branch distributed Bragg reflector diode laser

Proc. of SPIE, vol. 11670, Nonlinear Frequency Generation and Conversion: Materials and Devices XX, Photonics West, Online Only, Mar 6-11, 116701H (2021).

A. Müller and B. Sumpf

Epitaxial design progress for high power, efficiency, and brightness in 970 nm broad area lasers

Proc. of SPIE, vol. 11668, High-Power Diode Laser Technology XIX, Photonics West, Online Only, Mar 6-11, 1166807 (2021).

A. Boni, S. Arslan, G. Erbert, P. Della Casa, D. Martin, P. Crump

High-power, high-beam quality miniaturized diode laser module for direct material processing at 980 nm

Proc. of SPIE, vol. 11668, High-Power Diode Laser Technology XIX, Photonics West, Online Only, Mar 6-11, 1166804 (2021).

P. Hildenstein, A. Sahm, D. Feise, D. Jedrzejczyk, K. Paschke, G. Tränkle

Single mode 660 nm master-oscillator power-amplifier with 500 mW optical output power

Proc. of SPIE, vol. 11667, Components and Packaging for Laser Systems VII, Photonics West, Online Only, Mar 6-11, 116670C (2021).

G. Blume, C. Kaspari, J. Pohl, D. Feise, H. Wenzel, J. Fricke, P. Ressel, A. Ginolas, A. Sahm, A. Knigge and K. Paschke

Translation of SERS Sensing to Real-World Settings through the Combination with Shifted-Excitation Raman Difference Spectroscopy (SERDS)

Proc. of SPIE, vol. 11661, Plasmonics in Biology and Medicine XVIII, Photonics West, Online Only, Mar 6-11, 1166103 (2021).

P. Strobbia, V. Cupil-Garcia, R. Odion, B.M. Crawford, H.-N. Wang, Y. Liu, M. Maiwald, B. Sumpf and T. Vo-Dinh

Optical clock technologies for global navigation satellite systems

GPS Solut., vol. 25, art. 83, doi:10.1007/s10291-021-01113-2 (2021).

T. Schuldt, M. Gohlke, M. Oswald, J. Wüst, T. Blomberg, K. Döringshoff, A. Bawamia, A. Wicht, M. Lezius, K. Voss, M. Krutzik, S. Herrmann, E. Kovalchuk, A. Peters, C. Braxmaier

Noninvasive measurement of the 308 nm LED-based UVB protection factor of sunscreens

J. Biophotonics, vol. 14, no. 4, e202000453, doi:10.1002/jbio.202000453 (2021).

S. Kobylinski, C. Reble, S. Schanzer, I. Gersonde, G. Wiora, N. Lobo Ploch, H. Karrer, L. Kolbe, G. Khazaka, J. Lademann, M.C. Meinke

Improved lateral brightness in 940-nm high-power broad-area diode lasers using enhanced self-aligned structure

Semiconductor and Integrated Optoelectronics Conference (SIOE 2021), Cardiff, UK, Mar. 30 - Apr. 1 (2021).

M. Elattar, O. Brox, P. Della Casa, A. Maaßdorf, D. Martin, H. Wenzel, A. Knigge, and P. Crump

Threshold voltage shift induced by intrinsic stress in gate metal of AlGaN/GaN HFET

Semicond. Sci. Technol., vol. 36, no. 05, pp. 055018 (2021).

H. Yazdani, S. Chevtchenko, I. Ostermay and J. Würfl

Prototype of a compact rubidium-based optical frequency reference for operation on nanosatellites

J. Opt. Soc. Am. B, vol. 38, no. 6, pp. 1885-1891 (2021).

A. Strangfeld, S. Kanthak, M. Schiemangk, B. Wiegand, A. Wicht, A. Ling, and M. Krutzik

Origin of defect luminescence in ultraviolet emitting AlGaN diode structures

Appl. Phys. Lett., vol. 118, no. 20, pp. 202101, doi:10.1063/5.0047021 (2021).

M. Feneberg, F. Romero, R. Goldhahn, T. Wernicke, C. Reich, J. Stellmach, F. Mehnke, A. Knauer, M. Weyers, and M. Kneissl

Novel 900 nm diode lasers with epitaxially stacked multiple active regions and tunnel junctions

Electron. Lett., vol. 57, no. 11, pp. 445-447, doi:10.1049/ell2.12162 (2021).

H. Wenzel, A. Maaßdorf, C. Zink, D. Martin, M. Weyers, A. Knigge

A 52-58 GHz Power Amplifier With 18.6-dBm Saturated Output Power for Space Applications

IEEE Trans. Circuits Syst. II Express Briefs, vol. 68, no. 6, pp. 1927-1931 (2021).

Y.-F. Tsao, and H.-T. Hsu

Electrical and optical characteristics of highly transparent MOVPE-grown AlGaN-based tunnel heterojunction LEDs emitting at 232 nm

Photonics Res., vol. 9, no. 6, pp. 1117-1123 (2021).

F. Mehnke, C. Kuhn, M. Guttmann, L. Sulmoni, V. Montag, J. Glaab, T. Wernicke, and M. Kneissl

Comb injection into a single-mode laser

Conf. on Lasers and Electro-Optics (CLEO 2021), San Jose, USA, May 9-14, virtual event, p. SF2F.2 (2021).

D. Auth, J. Lautenschläger, C. Weber, D. Kazakov, M. Piccardo, A. Klehr, A. Knigge, J. Hillbrand, B. Schwarz, F. Capasso, and S. Breuer

Laser Diodes as Reliable Pump Source for Space-Borne Methane Remote Sensing Lidar System

Conf. on Lasers and Electro-Optics (CLEO 2021), San Jose, USA, May 9-14, virtual event, p. JTu3A.108 (2021).

K. Häusler, R. Staske, A. Maaßdorf, P. Ressel, C. Stölmacker, G. Tränkle and P. Crump

Ultra-narrow linewidth GaAs-based DBR Lasers

Conf. on Lasers and Electro-Optics (CLEO 2021), San Jose, USA, May 9-14, virtual event, p. ATh4G.3 (2021).

S. Wenzel, O. Brox, P. Della Casa, H. Wenzel, A. Knigge, B. Arar, S. Nechayev, S. Kreutzmann and A. Wicht

Wedged Nd:YVO₄ crystal for wavelength tuning of monolithic passively Q-switched picosecond microchip lasers

Opt. Express, vol. 29, no. 13, pp. 19790-19795, doi:10.1364/OE.430870 (2021).

A. Marianovich, S. Spiekermann, M. Brendel, P. Wessels, J. Neumann, M. Weyers, and D. Kracht

A Highly Linear Dual-Stage Amplifier With Beyond 1.75-THz Gain-Bandwidth Product

IEEE Microwave Wireless Compon. Lett., vol. 31, no. 6, pp. 717-720 (2021).

T. Shivan, M. Hossain, R. Doerner, H. Yacoub, T.K. Johansen, W. Heinrich, and V. Krozer

783 nm wavelength stabilized DBR tapered diodelasers with a 7 W output power

Appl. Opt., vol. 60, no. 18, pp. 5418-5423, doi:10.1364/AO.422688 (2021).

B. Sumpf, L.S. Theurer, M. Maiwald, A. Müller, A. Maaßdorf, J. Fricke, P. Ressel, and G. Tränkle

Experimental investigation of optical feedback from periodically poled crystals for nonlinear frequency conversion

Conf. on Lasers and Electro-Optics/Europe and European Quantum Electronics Conf. (CLEO/Europe-EQEC 2021), Munich, Germany, Jun. 21-25, virtual event, ISBN: 978-1-6654-1876-8, ce-9-4 (2021).

N. Werner, S. Häuser, Katrin Paschke

Miniaturized Master-Oscillator Power-Amplifier emitting at 626 nm

Conf. on Lasers and Electro-Optics/Europe and European Quantum Electronics Conf. (CLEO/Europe-EQEC 2021), Munich, Germany, Jun. 21-25, virtual event, ISBN: 978-1-6654-1876-8, cb-p-3 (2021).

G. Blume, M. Drees, J. Pohl, D. Feise, A. Sahm, K. Paschke

Externally Wavelength-Stabilized Single Mode Lasers with 65% Conversion Efficiency and 50 pm Spectral Width at 1 W Output

Conf. on Lasers and Electro-Optics/Europe and European Quantum Electronics Conf. (CLEO/Europe-EQEC 2021), Munich, Germany, Jun. 21-25, virtual event, ISBN: 978-1-6654-1876-8, cb-p-2 (2021).

M. Wilkens, G. Erbert, H. Wenzel, A. Maaßdorf, J. Fricke, A. Knigge and P. Crump

Advances towards deep-UV light emitting diode technologies

Conf. on Lasers and Electro-Optics/Europe and European Quantum Electronics Conf. (CLEO/Europe-EQEC 2021), Munich, Germany, Jun. 21-25, virtual event, ISBN: 978-1-6654-1876-8, cb-7-1 (2021).

M. Kneissl, G. Cardinali, J. Enslin, M. Guttmann, C. Kuhn, F. Mehnke, M. Schilling, L. Sulmoni, N. Susilo, T. Wernicke, H.K. Cho, J. Glaab, J. Ruschel, S. Hagedorn, N. Lobo-Ploch, C. Netzel, J. Rass, S. Walde, U. Winterwerber, S. Einfeldt, M. Weyers

Experimental investigation of nanosecond pulsed tapered-waveguide lasers obtaining extremely high brightness values

Conf. on Lasers and Electro-Optics/Europe and European Quantum Electronics Conf. (CLEO/Europe-EQEC 2021), Munich, Germany, Jun. 21-25, virtual event, ISBN: 978-1-6654-1876-8, cb-3-1 (2021).

H. Christopher, A. Zeghuzi, A. Klehr, J.-P. Koester, H. Wenzel, and A. Knigge

DBR-tapered lasers at 783 nm with narrowband emission and output powers up to 7 W

Conf. on Lasers and Electro-Optics/Europe and European Quantum Electronics Conf. (CLEO/Europe-EQEC 2021), Munich, Germany, Jun. 21-25, virtual event, ISBN: 978-1-6654-1876-8, cb-2-6 (2021).

B. Sumpf, L.S. Theurer, M. Maiwald, A. Müller, A. Maaßdorf, J. Fricke, P. Ressel, G. Tränkle

Vertical Design Approach for Suppressing Power Saturation in GaAs-Based High-Power Diode Lasers

Conf. on Lasers and Electro-Optics/Europe and European Quantum Electronics Conf. (CLEO/Europe-EQEC 2021), Munich, Germany, Jun. 21-25, virtual event, ISBN: 978-1-6654-1876-8, cb-2-4 (2021).

S. Arslan, A. Boni, A. Maaßdorf, G. Erbert, D. Martin, J. Fricke and P. Crump

Increased Conversion Efficiency at 800 W Continuous Wave Output From Single 1-cm Diode Laser Bars at 940 nm

Conf. on Lasers and Electro-Optics/Europe and European Quantum Electronics Conf. (CLEO/Europe-EQEC 2021), Munich, Germany, Jun. 21-25, virtual event, ISBN: 978-1-6654-1876-8, cb-2-1 (2021).

P. Crump, A. Meissner-Schenk, T. Kaul, S. Strohmaier, M.M. Karow, A. Boni, A. Maaßdorf, D. Martin and G. Tränkle

Semiconductor Laser Linewidth Theory Revisited

Appl. Sci., vol. 11, no. 13, art. 6004, doi:10.3390/app11136004 (2021).

H. Wenzel, M. Kantner, M. Radziunas and U. Bandelow

GaN-channel HEMTs with AlN buffer for high-voltage switching

79th Device Research Conference (DRC 2021), Santa Barbara, USA, Jun. 20-23, virtual event, ISBN: 978-1-6654-2958-0 (2021).

O. Hilt, F. Brunner, E. Bahat Treidel, M. Wolf and J. Würfl

Novel 1064 nm DBR lasers combining active layer removal and surface gratings

Electron. Lett., vol. 57, no. 14, pp. 559-561, doi:10.1049/ell2.12192 (2021).

O. Brox, H. Wenzel, J. Fricke, P. Della Casa, A. Maaßdorf, M. Matalla, S. Wenzel, A. Wicht, and A. Knigge

A Highly Linear Dual-Stage Amplifier With Beyond 1.75-THz Gain-Bandwidth Product

published in IEEE Microwave and Wireless Components Letters and presented at IEEE MTT-S Int. Microw. Symp., Atlanta, USA, Jun. 20-25, Virtual Event (2021).

T. Shivan, M. Hossain, R. Doerner, H. Yacoub, T.K. Johansen, W. Heinrich, and V. Krozer

Digital PA Modulator with Phase Shifter for Phased Array Transmitters

IEEE MTT-S Int. Microw. Symp. Dig., Atlanta, USA, Jun. 20-25, Virtual Event, ISBN 978-1-6654-0307-8, pp. 780-783 (2021).

F. Hühn, A. Wentzel, W. Heinrich

A 26 GHz GaN-MMIC with Integrated Switches for Discrete Level Supply Modulation

IEEE MTT-S Int. Microw. Symp. Dig., Atlanta, USA, Jun. 20-25, Virtual Event, ISBN 978-1-6654-0307-8, pp. 527-530 (2021).

O. Bengtsson, S. Paul, C. Schulze, S. Chevtchenko, and W. Heinrich

Characterization of the Impairment and Recovery of GaN-HEMTs in Low-Noise Amplifiers under Input Overdrive

IEEE MTT-S Int. Microw. Symp. Dig., Atlanta, USA, Jun. 20-25, Virtual Event, ISBN 978-1-6654-0307-8, pp. 515-518 (2021).

S. Krause, P. Beleniotis, O. Bengtsson, M. Rudolph, W. Heinrich

Modeling Base-Collector Heterojunction Barrier Effect in InP DHBTs for Improved Large Signal Performance

IEEE MTT-S Int. Microw. Symp. Dig., Atlanta, USA, Jun. 20-25, Virtual Event, ISBN 978-1-6654-0307-8, pp. 355-357 (2021).

V.P. Sriperumbuduri, H. Yacoub, T.K. Johansen, A. Wentzel, R. Doerner, M. Rudolph

High Conversion Gain Up-Converter with +5 dBm OP1dB in InP DHBT Technology for Ultra Capacity Wireless Applications

IEEE MTT-S Int. Microw. Symp. Dig., Atlanta, USA, Jun. 20-25, Virtual Event, ISBN 978-1-6654-0307-8, pp. 290-293 (2021).

M. Hossain, T. Shivan, M. Brahem, H. Yacoub, W. Heinrich and V. Krozer

Skin tolerant inactivation of multiresistant pathogens using far-UVC LEDs

Sci. Rep., vol. 11, art. 14647, doi:10.1038/s41598-021-94070-2 (2021).

J. Glaab, N. Lobo-Ploch, H.K. Cho, T. Filler, H. Gundlach, M. Guttmann, S. Hagedorn, S.B. Lohan, F. Mehnke, J. Schleusener, C. Sicher, L. Sulmoni, T. Wernicke, L. Wittenbecher, U. Woggon, P. Zwicker, A. Kramer, M.C. Meinke, M. Kneissl, M. Weyers, U. Winterwerber & S. Einfeldt

Comparison of Ultraviolet B Light-Emitting Diodes with Single or Triple Quantum Wells

phys. stat. sol. (a), vol. 218, no. 14, pp. 2100100, doi:10.1002/pssa.202100100 (2021).

T. Kolbe, A. Knauer, J. Ruschel, J. Rass, H.K. Cho, S. Hagedorn, J. Glaab, N. Lobo Ploch, S. Einfeldt, and M. Weyers

Spatially modulated broad-area lasers for narrow lateral far-field divergence

Opt. Express, vol. 29, no. 16, pp. 25133-25141, doi:10.1364/OE.430804 (2021).

A. Zeghuzi, J.-P. Koester, M. Radziunas, H. Christopher, H. Wenzel, and A. Knigge

Direct observation of resonant tunneling in heterostructure with a single quantum well

Appl. Phys. Lett., vol. 119, no. 4, pp. 043503, doi:10.1063/5.0056842 (2021).

V.I. Zubkov, I.V. Ivanova and M. Weyers

A carbon-doping related luminescence band in GaN revealed by below bandgap excitation

J. Appl. Phys., vol. 130, no. 5, pp. 055703, doi:10.1063/5.0053940 (2021).

F. Zimmermann, J. Beyer, F.C. Beyer, G. Gärtner, I. Gamov, K. Irmscher, E. Richter, M. Weyers and J. Heitmann

A Digital Correction Method for Increased Dynamic Range in Interferometric Six-Port Radars

IEEE Microwave Wireless Compon. Lett., vol. 31, no. 8, pp. 997-1000 (2021).

S. Krause, F. Michler, A. Kölpin, M. Rudolph, and W. Heinrich

Shifted excitation Raman difference spectroscopy as enabling technique for the analysis of animal feedstuff

J. Raman Spectrosc., vol. 52, no. 8, pp. 1418-1427 (2021).

K. Sowoidnich, M. Oster, K. Wimmers, M. Maiwald, B. Sumpf

Modelling of a miniature microwave driven nitrogen plasma jet and comparison to measurements

Plasma Sources Sci. Technol., vol. 30, no. 6, pp. 065014, doi:10.1088/1361-6595/ac04bc (2021).

M. Klute, E. Kemaneci, H.-E. Porteanu, I. Stefanovic, W. Heinrich, P. Awakowicz and R.P. Brinkmann

Pulsed Diode Laser Minibars for Pumping Space-Borne Solid-State Lasers

IEEE Photonics Technol. Lett., vol. 33, no. 17, pp. 963-966 (2021).

K. Häusler, R. Staske, A. Maaßdorf, P. Ressel, C. Stölmacker, G. Tränkle, and P. Crump

Time-domain optics for atomic quantum matter

New J. Phys., vol. 23, no. 9, pp. 093002, doi:10.1088/1367-2630/ac1285 (2021).

S. Kanthak, M. Gebbe, M. Gersemann, S. Abend, E.M. Rasel and M. Krutzik

16.3 W Peak-Power Pulsed All-Diode Laser Based Multi-Wavelength Master-Oscillator Power-Amplifier System at 964 nm

Appl. Sci., vol. 11, no. 18, art. 8608, doi:10.3390/app11188608 (2021).

T.N. Vu, T.Q. Tien, B. Sumpf, A. Klehr, J. Fricke, H. Wenzel and G. Tränkle

Impact of vertical structure on thermal lensing and lateral beam quality in high-power broad-area diode lasers

European Semiconductor Laser Workshop (ESLW 2021), Paris, France, Online Only, Sep. 17-18 (2021).

M. Elattar, J. Rieprich and P. Crump

Subsequent treatment of leafy vegetables with low doses of UVB-radiation does not provoke cytotoxicity, genotoxicity, or oxidative stress in a human liver cell model

IEEE J. Quantum Electron., vol. 57, no. 5, pp. 2100107 (2021).

M. Wiesner-Reinhold, J.V. Dutra Gomes, C. Herz, H.T.T. Tran, S. Baldermann, S. Neugart, T. Filler, J. Glaab, S. Einfeldt, M. Schreiner, E. Lamy

Feedback Sensitivity of Detuned DBR Semiconductor Lasers

IEEE J. Quantum Electron., vol. 57, no. 5, pp. 2100107 (2021).

V. Tronciu, N. Werner, H. Wenzel, and H.-J. Wünsche

High-Temperature Annealing and Patterned AlN/Sapphire Interfaces

phys. stat. sol. (b), vol. 258, no. 10, pp. 2100187, doi:10.1002/pssb.202100187 (2021).

S. Hagedorn, A. Mogilatenko, S. Walde, D. Pacak, J. Weinrich, C. Hartmann, and M. Weyers

Mode-locked Cr:LiSAF laser far off the gain peak: tunable sub-200-fs pulses near 1 µm

Appl. Opt., vol. 60, no. 29, pp. 9054-9061, doi:10.1364/AO.440263 (2021).

U. Demirbas, J. Thesinga, M. Kellert, S. Reuter, B. Sumpf, M. Pergament, and F.X. Kartner

A Polarization Switchable Antenna Switch Module for Ka-band Application

IEEE International Symposium on Radio-Frequency Integration Technology (RFIT), Hualien, Taiwan, Aug 25-27, online event, ISBN: 978-1-6654-3391-4 (2021).

Y. Wang, Y.-F. Tsao, C.-M. Tsao, H.-J. Würfl, H.-T. Hsu

Theoretical Study of the Behavior of a DBR Laser Subject to External Optical Feedback

Rom. Rep. Phys., vol. 73, no. 4, art. 408 (2021).

V. Tronciu, N. Werner, H. Wenzel, H.-J. Wünsche

Experimental Studies into the Beam Parameter Product of GaAs High-Power Diode Lasers

IEEE J. Sel. Top. Quantum Electron., vol. 28, no. 1, pp. 1501111 (2022).

P. Crump, M. Elattar, Md.J. Miah, M. Ekterai, M.M. Karow, D. Martin, A. Maaßdorf, S. McDougall, C. Holly, S. Rauch, S. Gruetzner, S. Strohmaier, and G. Tränkle

Comparative Study of Monolithic Integrated MMI-Coupler-Based Dual-Wavelength Lasers

IEEE J. Sel. Top. Quantum Electron., vol. 28, no. 1, pp. 1500609 (2022).

J.-P. Koester, H. Wenzel, J. Fricke, O. Brox, A. Zeghuzi, A. Müller, L.S. Theurer, B. Sumpf, A. Knigge, and G. Tränkle