• Ørsteds Plads, 343, 014

    2800 Kgs. Lyngby

    Denmark

1993 …2022
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Research Output 1993 2019

2019

A photomultiplier tube with sensitivity in the entire terahertz- and infrared frequency range

Lange, S. L., Kawai, N. & Jepsen, P. U., 1 Sep 2019, Proceedings of 44th International Conference on Infrared, Millimeter, and Terahertz Waves. IEEE, 8874560

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Attenuation of THz Beams: A "How to" Tutorial

Kaltenecker, K. J., Kelleher, E., Zhou, B. & Jepsen, P. U., 2019, In : Journal of Infrared, Millimeter and Terahertz Waves. 40, 8, p. 878–904

Research output: Contribution to journalJournal articleResearchpeer-review

Conductivity measurement of graphene on thin polymeric film by broadband air-plasma THz spectroscopy

Zhou, B. B., Shen, Q., Whelan, P. R., Hong, L. J. & Jepsen, P. U., 2019, Proceedings of 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 1 p. ( International Conference on Infrared, Millimeter and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

MHz repetition-rate, few-cycle, multi-octave THz generation in HMQ-TMS

Buchmann, T. O., Kelleher, E., Kwon, O-P., Rotermund, F. & Jepsen, P. U., 2019. 1 p.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Non-contact mobility measurements of graphene on silicon carbide

Whelan, P. R., Zhao, X., Pasternak, I., Strupinski, W., Jepsen, P. U. & Bøggild, P., 2019, In : Microelectronic Engineering. 212, p. 9-12

Research output: Contribution to journalJournal articleResearchpeer-review

2 Downloads (Pure)

Phase Retrieval in Terahertz Time-Domain Measurements: a "how to" Tutorial

Jepsen, P. U., 2019, In : Journal of Infrared, Millimeter and Terahertz Waves. 40, 4, p. 395-411

Research output: Contribution to journalJournal articleResearchpeer-review

Quantifying crystalline α-lactose monohydrate in amorphous lactose using terahertz time domain spectroscopy and near infrared spectroscopy

Warnecke, S., Wu, J. X., Rinnan, Å., Allesø, M., van den Berg, F. W. J., Jepsen, P. U. & Engelsen, S. B., 2019, In : Vibrational Spectroscopy. 102, p. 39-46

Research output: Contribution to journalJournal articleResearchpeer-review

5 Downloads (Pure)

Subcycle Nonlinear Response of Doped 4H Silicon Carbide Revealed by Two-Dimensional Terahertz Spectroscopy

Tarekegne, A. T., Kaltenecker, K. J., Klarskov, P., Iwaszczuk, K., Lu, W., Ou, H., Norrman, K. & Jepsen, P. U., 2019, In : ACS Photonics. 7, 1, p. 221-231

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

Supercontinuum generation in amorphous TiO2 waveguides

Li, G., Zheng, Y., Fu, M., Jepsen, P. U., Frandsen, L. H. & Guan, X., 2019.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

46 Downloads (Pure)

Terahertz spectroscopy from air plasmas created by two-color femtosecond laser pulses: The ALTESSE project

Bergé, L., Kaltenecker, K. J., Engelbrecht, S., Nguyen, A., Skupin, S., Merlat, L., Fischer, B., Zhou, B., Thiele, I. & Jepsen, P. U., 2019, In : EPL. 126, 2, 7 p., 24001.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
198 Downloads (Pure)

Terahertz time-domain spectroscopy of zone-folded acoustic phonons in 4H and 6H silicon carbide

Tarekegne, A. T., Zhou, B., Kaltenecker, K., Iwaszczuk, K., Clark, S. & Jepsen, P. U., 2019, In : Optics Express. 27, 3, p. 3618-3628 11 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
43 Downloads (Pure)

Wavelength scaling of terahertz pulse energies delivered by two-color air plasmas

Nguyen, A., Kaltenecker, K. J., Delagnes, J. C., Zhou, B., Cormier, E., Fedorov, N., Bouillaud, R., Descamps, D., Thiele, I., Skupin, S., Jepsen, P. U. & Bergé, L., 1 Jan 2019, In : Optics Letters. 44, 6, p. 1488-1491 4 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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Wavelength scaling of THz emissions by two-color filaments in air

Bergé, L., Nguyen, A., Kaltenecker, K. J., Delagnes, J. C., Zhou, B., Cormier, E., Fedorov, N., Bouillaud, R., Descamps, D., Thiele, I., Skupin, S. & Jepsen, P. U., 1 Jun 2019, Proceedings of 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference. IEEE, 8872607. (2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

2018
239 Downloads (Pure)

Conductivity mapping of graphene on polymeric films by terahertz time-domain spectroscopy

Whelan, P. R., Huang, D., Mackenzie, D., Messina, S. A., Li, Z., Li, X., Li, Y., Booth, T. J., Jepsen, P. U., Shi, H. & Bøggild, P., 2018, In : Optics Express. 26, 14, p. 17748-17754

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

Direct Injection of Ultrashort Electron Bunches Into a Solid Material Using Terahertz-Driven Electron Field Emission

Lange, S. L., Lindvold, L. R. & Jepsen, P. U., 2018, Proceedings of 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves. IEEE, 2 p.

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

5 Downloads (Pure)

Electrical Homogeneity Mapping of Epitaxial Graphene on Silicon Carbide

Whelan, P. R., Panchal, V., Petersen, D. H., Mackenzie, D. M. A., Melios, C., Pasternak, I., Gallop, J., Østerberg, F. W., Jepsen, P. U., Strupinski, W., Kazakova, O. & Bøggild, P., 2018, In : A C S Applied Materials and Interfaces. 10, 37, p. 31641-31647

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

High-efficiency Sub-single-cycle THz Wave Generation by Three-color Air Plasma

Zhou, B., Wang, Y., Hong, L., Madhi, D. & Jepsen, P. U., 2018, Proceedings of 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves. IEEE, p. 1-1 1 p.

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

Plasmonic Resonances Affecting Terahertz Generation in Laser-Induced Gas-Plasmas

Kaltenecker, K. J., Thiele, I., Zhou, B., Nguyen, A., Smctanina, E., Nuter, R., de Alaiza Martinez, P. G., Dechard, J., Berge, L., Jepsen, P. U. & Skupin, S., 2018, Proceedings of 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves . IEEE, p. 1-2 2 p.

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

531 Downloads (Pure)

Quality assessment of terahertz time-domain spectroscopy transmission and reflection modes for graphene conductivity mapping

Mackenzie, D. M. A., Whelan, P. R., Bøggild, P., Jepsen, P. U., Redo-Sanchez, A., Etayo, D., Fabricius, N. & Petersen, D. H., 2018, In : Optics Express. 26, 7, p. 9220-9229

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
171 Downloads (Pure)

Resonant effects in terahertz generation with laser-induced gas plasmas

Thiele, I., Zhou, B., Nguyen, A., Smetanina, E., Nuter, R., De Alaiza Martínez, P. G., Kaltenecker, K. J., Déchard, J., Bergé, L., Jepsen, P. U. & Skupin, S., 23 Nov 2018, In : EPJ Web of Conferences. 195, 2 p., 03011 .

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File

Simulation and experimental investigation of 2D materials with far and near-field THz spectroscopy

Madhi, D., Whelan, P. R., Bøggild, P. & Jepsen, P. U., 2018. 1 p.

Research output: Contribution to conferencePaperResearchpeer-review

Synthetic THz Nanoholography for Imaging CVD Graphene

Madhi, D., Maissen, C. M., Mastel, S., Hesler, J., Jepsen, P. U. & Hillenbrand, R., 2018, Proceedings of 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves . IEEE, p. 1-1 1 p.

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

161 Downloads (Pure)

Terahertz emission from laser-driven gas plasmas: A plasmonic point of view

Thiele, I., Zhou, B., Nguyen, A., Smetanina, E., Nuter, R., Kaltenecker, K. J., Martínez, P. G. D. A., Déchard, J., Bergé, L., Jepsen, P. U. & Skupin, S., 2018, In : Optica. 5, 12, p. 1617-1622 6 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

Ultra-broadband THz photonic wireless transmission

Yu, X., Jia, S., Hu, H., Galili, M., Morioka, T., Jepsen, P. U. & Oxenlowe, L. K., 1 Jul 2018, Proceedings of 23rd Opto-Electronics and Communications Conference. IEEE, 2 p. 8729955. (23rd Opto-Electronics and Communications Conference, OECC 2018).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Ultra-broadband THz spectroscopy for sensing and identification for security applications

Kaltenecker, K. J., Zhou, B., Tybussek, K-H., Engelbrecht, S., Lehmann, R., Walker, S., Jepsen, P. U. & Fischer, B. M., 2018, Proceedings of 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves . IEEE, p. 1-2 2 p.

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

2017
444 Downloads (Pure)

120 Gb/s Multi-Channel THz Wireless Transmission and THz Receiver Performance Analysis

Jia, S., Yu, X., Hu, H., Yu, J., Morioka, T., Jepsen, P. U. & Oxenløwe, L. K., 2017, In : IEEE photonic Technology Letters. 29, 3, p. 310-13

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

A wavefront analyzer for terahertz time-domain spectrometers

Abraham, E., Brossard, M., Fauche, P., Perrin, M., Iwaszczuk, K. & Jepsen, P. U., 2017, Proceedings of the42nd International Conference on Infrared, Millimeter, and Terahertz Waves. IEEE, p. 1-1 ( International Conference on Infrared, Millimeter and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Bridging the gap between the THz and IR frequency regime

Kaltenecker, K. J., Zhou, B., Stenger, N., Engelbrecht, S., Fischer, B. & Jepsen, P. U., 2017, Proceedings:of the 42nd International Conference on Infrared, Millimeter, and Terahertz Waves . IEEE, p. 1-2 2 p. ( International Conference on Infrared, Millimeter and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Electron dynamics in metals and semiconductors in strong THz fields

Jepsen, P. U., 2017, Proceedings of the 42nd International Conference on Infrared, Millimeter, and Terahertz Waves. IEEE, 2 p. ( International Conference on Infrared, Millimeter and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Fundamentals for a terahertz-driven electron gun

Lange, S. L., Olsen, F. D., Iwaszczuk, K. & Jepsen, P. U., 2017, Proceedings of 2017 17th International Conference on Numerical Simulation of Optoelectronic Devices . IEEE, p. 197-198

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

191 Downloads (Pure)

High impact ionization rate in silicon by sub-picosecond THz electric field pulses (Conference Presentation)

Tarekegne, A. T., Iwaszczuk, K., Hirori, H., Tanaka, K. & Jepsen, P. U., 2017, Proceedings of SPIE. SPIE - International Society for Optical Engineering, Vol. 10102. 101020Z. (Proceedings of S P I E - International Society for Optical Engineering).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
310 Downloads (Pure)

Impact ionization dynamics in silicon by MV/cm THz fields

Tarekegne, A. T., Hirori, H., Tanaka, K., Iwaszczuk, K. & Jepsen, P. U., 2017, In : New Journal of Physics. 19, 12, 8 p., 123018.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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Insights on the Side Panels of the Franciscan Triptych by Fra Angelico Using Terahertz Time-Domain Imaging (THz-TDI)

Dandolo, C. L. K., Picollo, M., Cucci, C., Ginanni, M., Prandi, E., Scudieri, M. & Jepsen, P. U., 2017, In : Journal of Infrared, Millimeter and Terahertz Waves. 38, 4, p. 413-424

Research output: Contribution to journalJournal articleResearchpeer-review

Inspection of Asian Lacquer Substructures by Terahertz Time-Domain Imaging (THz-TDI)

Dandolo, C. L. K., Fukunaga, K., Kohzuma, Y., Kiriyama, K., Matsuda, K. & Jepsen, P. U., 2017, In : Journal of Infrared, Millimeter and Terahertz Waves. 38, 4, p. 425–434

Research output: Contribution to journalJournal articleResearchpeer-review

679 Downloads (Pure)

Mapping the electrical properties of large-area graphene

Bøggild, P., Mackenzie, D., Whelan, P. R., Petersen, D. H., Buron, J. C. D., Zurutuza, A., Gallop, J., Hao, L. & Jepsen, P. U., 2017, In : 2D materials. 4, 4, 042003.

Research output: Contribution to journalReviewResearchpeer-review

Open Access
File

Nonlinear optical response of chalcogenide glassy semiconductors in the IR and THz ranges studied with the femtosecond resolution in time

Romanova, E., Guizard, S., Wang, T., Jepsen, P. U., Lavrinenko, A., Tang, Z., Seddon, A. & Benson, T., 2017, Proceedings of 11th International Congress on Engineered Material Platforms for Novel Wave Phenomena. IEEE, p. 298-300 3 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

247 Downloads (Pure)

Robust mapping of electrical properties of graphene from terahertz time-domain spectroscopy with timing jitter correction

Whelan, P. R., Iwaszczuk, K., Wang, R., Hofmann, S., Bøggild, P. & Jepsen, P. U., 2017, In : Optics Express. 25, 3, 8 p., 2725.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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Space-Time mapping of terahertz-induced electron field emission

Lange, S. L., Kristensen, T. M. B., Iwaszczuk, K. & Jepsen, P. U., 2017, Proceedings:of the 42nd International Conference on Infrared, Millimeter, and Terahertz Waves. IEEE, p. 1-2 2 p. ( International Conference on Infrared, Millimeter and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

219 Downloads (Pure)

Sputtering an exterior metal coating on copper enclosure for large-scale growth of single-crystalline graphene: Paper

Luo, B., Caridad, J. M., Whelan, P. R., Thomsen, J. D., Mackenzie, D. M. A., Grubišić Čabo, A., Mahatha, S. K., Bianchi, M., Hofmann, P., Jepsen, P. U., Bøggild, P. & Booth, T. J., 2017, In : 2D materials. 4, 4, 10 p., 045017.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

Ultra-broadband THz time-domain spectroscopy of energetic materials

Kaltenecker, K. J., Zhou, B., Engelbrecht, S., Fischer, B. & Jepsen, P. U., 2017, Proceedings of the 42nd International Conference on Infrared, Millimeter, and Terahertz Waves. IEEE, p. 1-2 2 p. ( International Conference on Infrared, Millimeter and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Ultrafast nonlinear response of silicon carbide to intense THz fields

Tarekegne, A. T., Iwaszczuk, K., Kaltenecker, K. J., Zhou, B., Lu, W., Ou, H. & Jepsen, P. U., 2017, Nonlinear Optics 2017. Optical Society of America (OSA), 2 p. NW3A.3

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

2016
323 Downloads (Pure)

160 Gbit/s photonics wireless transmission in the 300-500 GHz band

Yu, X., Jia, S., Hu, H., Galili, M., Morioka, T., Jepsen, P. U. & Oxenløwe, L. K., 2016, In : APL Photonics. 1, 8, 6 p., 081301.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
549 Downloads (Pure)

400-GHz wireless transmission of 60-Gb/s nyquist-QPSK signals using UTC-PD and heterodyne mixer

Yu, X., Asif, R., Piels, M., Zibar, D., Galili, M., Morioka, T., Jepsen, P. U. & Oxenløwe, L. K., 2016, In : IEEE Transactions on Terahertz Science and Technology. 6, 6, p. 765 - 770 7556985.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
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80 Gbit/s 16-QAM Multicarrier THz Wireless Communication Link in the 400 GHz Band

Jia, S., Yu, X., Hu, H., Yu, J., Morioka, T., Jepsen, P. U. & Oxenløwe, L. K., 2016, Proceedings of 42nd European Conference and Exhibition on Optical Communications. VDE Verlag, p. 506-508 3 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

188 Downloads (Pure)

Amplification of resonant field enhancement by plasmonic lattice coupling in metallic slit arrays

Pedersen, P. K., Tarekegne, A. T., Iwaszczuk, K., Zhang, X-C. & Jepsen, P. U., 2016, In : Scientific Reports. 6, 37738.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

Broadband terahertz polarization rotator based on a twisted parallel plate waveguide

Kristensen, T. B., Iwaszczuk, K. & Jepsen, P. U., 2016, Proceedings of 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves . IEEE, p. 1-2 2 p. ( International Conference on Infrared, Millimeter and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Broadband terahertz spectroscopy of chalcogenide glass As30Se30Te40

Wang, T., Romonova, E. A., Abdel-Moneim, N., Furniss, D., Krolik, A., Tang, Z., Seddon, A., Benson, T., Lavrinenko, A. & Jepsen, P. U., 2016, Proceedings of 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves. IEEE, p. 1-1 1 p. ( International Conference on Infrared, Millimeter and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

235 Downloads (Pure)

Contactless graphene conductance measurements: the effect of device fabrication on terahertz time-domain spectroscopy

Mackenzie, D., Buron, J. C. D., Bøggild, P., Jepsen, P. U. & Petersen, D. H., 2016, In : International Journal of Nanotechnology. 13, 8-9, p. 591-596

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

Experimental analysis of THz receiver performance in 80 Gbit/s communication system

Jia, S., Yu, X., Hu, H., Yu, J., Morioka, T., Jepsen, P. U. & Oxenløwe, L. K., 2016, Proceedings of 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves. IEEE, p. 1-2 2 p. ( International Conference on Infrared, Millimeter and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review