Publikationen 2021

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

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).

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

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).

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

Skin tolerant inactivation of multiresistant pathogens using far-UVC LEDs

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

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

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).

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

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).

S. Krause, P. Beleniotis, O. Bengtsson, M. Rudolph, 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).

O. Bengtsson, S. Paul, C. Schulze, S. Chevtchenko, and 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).

F. Hühn, A. Wentzel, W. Heinrich

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).

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

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).

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

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

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).

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

Semiconductor Laser Linewidth Theory Revisited

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

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

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).

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

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).

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

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).

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

Ultra-narrow linewidth GaAs-based DBR Lasers

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

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

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

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

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

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).

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

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).

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

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).

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

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).

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

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).

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

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

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

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

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).

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

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).

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

Optical clock technologies for global navigation satellite systems

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

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

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).

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

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).

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

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).

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

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. Müller and B. Sumpf

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).

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

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).

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

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).

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

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).

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

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).

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

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).

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

Roadmap on quantum nanotechnologies

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

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

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).

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

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

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.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

Ultracold atom interferometry in space

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

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

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).

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

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).

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

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

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

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

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).

P. Beleniotis, F. Schnieder, M. Rudolph

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).

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

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

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, 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

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).

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

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).

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

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).

S. Paul, W. Heinrich, O. Bengtsson

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).

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

Laser systems enable quantum technology in space

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

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

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).

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

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).

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

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

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

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

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).

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

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

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

The Bose-Einstein Condensate and Cold Atom Laboratory

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

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

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).

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

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).

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

Mode competition in broad-ridge-waveguide lasers

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

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Publikationen 2021

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