Zobrazeno 1 - 10
of 200
pro vyhledávání: '"Willenberg B"'
Autor:
Pupeikis J., Soghomonyan H., Willenberg B., Stumpp A., Lang L., Phillips C. R., Resan B., Keller U.
Publikováno v:
EPJ Web of Conferences, Vol 307, p 04032 (2024)
We present a coaxial dual-comb LiDAR integrated into a laser micromachining station, enabling in-situ 3D profiling of machined parts with sub-micrometer axial precision, offering a cost-effective solution with high precision capability.
Externí odkaz:
https://doaj.org/article/d1599776b44f40e39c7b34d022cc5426
Publikováno v:
EPJ Web of Conferences, Vol 267, p 01009 (2022)
We demonstrate a spatially-multiplexed dual-comb 250-MHz OPO from a single linear cavity. The adjustable repetition-rate difference is 4.1 kHz. Each idler comb has >200-mW average power at 3.5 μm with 30 nm bandwidth. The OPO is wavelength-tunable f
Externí odkaz:
https://doaj.org/article/fe1d14f98bdb4c2b8dc4e6652890f257
Autor:
Phillips, C. R., Willenberg, B., Nussbaum-Lapping, A., Callegari, F., Camenzind, S. L., Pupeikis, J., Keller, U.
Publikováno v:
Optics Express 31 (2023) 7103-7119
We present a new type of dual optical frequency comb source capable of scaling applications to high measurement speeds while combining high average power, ultra-low noise operation, and a compact setup. Our approach is based on a diode-pumped solid-s
Externí odkaz:
http://arxiv.org/abs/2211.01368
Autor:
Pupeikis, J., Willenberg, B., Camenzind, S. L., Benayad, A., Camy, P., Phillips, C. R., Keller, U.
Single-cavity dual-comb lasers are a new class of ultrafast lasers which have a wide possible application space including pump-probe sampling, optical ranging, and gas absorption spectroscopy. However, to this date laser cavity multiplexing usually c
Externí odkaz:
http://arxiv.org/abs/2203.08536
Autor:
Pupeikis, J., Hu, W., Willenberg, B., Mehendale, M., Antonelli, G.A., Phillips, C.R., Keller, U.
Publikováno v:
In Photoacoustics February 2023 29
Autor:
Maurer, J., Willenberg, B., Mayer, B. W., Phillips, C. R., Gallmann, L., Danek, J., Klaiber, M., Hatsagortsyan, K. Z., Keitel, C. H., Keller, U.
Strong-field ionization and rescattering beyond the long-wavelength limit of the dipole approximation is studied with elliptically polarized mid-IR pulses. We have measured the full three-dimensional photoelectron momentum distributions (3D PMDs) wit
Externí odkaz:
http://arxiv.org/abs/1703.03283
Autor:
Rule, K. C., Willenberg, B., Schäpers, M., Wolter, A. U. B., Büchner, B., Drechsler, S. -L., Ehlers, G., Tennant, D. A., Mole, R. A., Gardner, J. S., Süllow, S., Nishimoto, S.
Publikováno v:
Phys. Rev. B 95, 024430 (2017)
Here we present inelastic neutron scattering measurements from the frustrated, quantum spin-1/2 chain material linarite, PbCuSO_4(OH)_2. Time of flight data, taken at 0.5K and zero applied magnetic field reveals low-energy dispersive spin wave excita
Externí odkaz:
http://arxiv.org/abs/1611.00986
Autor:
Willenberg, B., Schäpers, M., Wolter, A. U. B., Drechsler, S. -L., Reehuis, M., Büchner, B., Studer, A. J., Rule, K. C., Ouladdiaf, B., Süllow, S., Nishimoto, S.
Publikováno v:
Phys. Rev. Lett. 116, 047202 (2016)
Low-temperature neutron diffraction and NMR studies of field-induced phases in linarite are presented for magnetic fields $H \parallel b$ axis. A two-step spin-flop transition is observed as well as a transition transforming a helical magnetic ground
Externí odkaz:
http://arxiv.org/abs/1508.02207
Autor:
Willenberg, B., Ryll, H., Kiefer, K., Tennant, D. A., Groitl, F., Rolfs, K., Manuel, P., Khalyavin, D., Rule, K. C., Wolter, A. U. B., Süllow, S.
We determine the phase diagram of copper nitrate Cu(NO$_3$)$_2\cdot$2.5D$_2$O in the context of quantum phase transitions and novel states of matter. We establish this compound as an ideal candidate to study quasi-1D Luttinger liquids, 3D Bose-Einste
Externí odkaz:
http://arxiv.org/abs/1406.6149
Autor:
Schäpers, M., Wolter, A. U. B., Drechsler, S. -L., Nishimoto, S., Müller, K. -H., Abdel-Hafiez, M., Schottenhamel, W., Büchner, B., Richter, J., Ouladdiaf, B., Uhlarz, M., Beyer, R., Skourski, Y., Wosnitza, J., Rule, K. C., Ryll, H., Klemke, B., Kiefer, K., Reehuis, M., Willenberg, B., Süllow, S.
We present a comprehensive macroscopic thermodynamic study of the quasi-one-dimensional (1D) $s = \tfrac{1}{2}$ frustrated spin-chain system linarite. Susceptibility, magnetization, specific heat, magnetocaloric effect, magnetostriction, and thermal-
Externí odkaz:
http://arxiv.org/abs/1305.6731