Article
Nanoscience & Nanotechnology
Takehiro Tachizaki, Kan Hayashi, Yoshihiko Kanemitsu, Hideki Hirori
Summary: The combination of scanning tunneling microscopy and terahertz electromagnetic pulses has advanced significantly, providing atomic-level spatial resolution and femtosecond temporal resolution. It can capture real-time dynamics of electron diffusion and relaxation, and even control molecular motions instantaneously. This technology has great potential for materials research and development in ultrafast time-resolved THz scanning tunneling microscopy.
Article
Chemistry, Multidisciplinary
Vaisakh C. Paingad, Jan Kunc, Martin Rejhon, Ivan Rychetsky, Ivan Mohelsky, Milan Orlita, Petr Kuzel
Summary: The study investigates the ultrafast sheet conductivity dynamics in various epitaxially grown graphene layers using optical pump-terahertz probe spectroscopy. Plasmonic excitations are believed to be induced by wrinkles and substrate terraces, acting within micrometer-sized domains with isotropic character. The measured ultrafast dynamics are controlled by the quasi-Fermi level of laser-excited carriers and the transient spectra reveal crucial material parameters such as Fermi energy, carrier mobility, and disorder mean free path.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Physics, Applied
Heonoh Kim, Osung Kwon, Han Seb Moon
Summary: The study experimentally demonstrates the two-photon interference of two phase-randomized weak coherent pulses using time-resolved coincidence detection technique. The mutual coherence time between the two weak coherent lights is determined by applying frequency noise to one of the interfering lights, and the HOM-type TPI fringe visibility is analyzed based on the ratio of coherence time to pulse duration.
APPLIED PHYSICS LETTERS
(2021)
Article
Spectroscopy
P. Vitek, K. Klem
Summary: Raman spectroscopy was used to investigate the short-term (0-96 h) response of A. thaliana to oxidative stress induced by the PSII inhibitor metribuzin. Whole leaves of wildtype (WT, Col-0) and ros1 mutant were scanned, and changes in carotenoids were examined. Significant differences in Raman intensity distributions between WT and ros1 were observed, with a stronger decrease in carotenoid v1(C=C) band intensity across the leaf in ros1 after 48 h of metribuzin exposure.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Nanoscience & Nanotechnology
Yuanyuan Li, Lu Zhang, Jianhua Chang, Qannan Cui, Hui Zhao
Summary: The study investigated the time-resolved tunneling of holes between two MoSe2 monolayers separated by a WS2 energy barrier, with a measured tunneling time of about 20 ps. Utilizing a graphene layer to selectively fill holes in the first MoSe2 layer provided quantitative insights into charge transfer mechanisms in van der Waals heterostructures, beneficial for designing sophisticated multilayer structures.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Electrical & Electronic
Yu Shi, Yijing Deng, Peizhao Li, Patrick Fay, Lei Liu
Summary: A fully integrated lens-coupled dual-polarization detector for imaging in the terahertz region was designed, fabricated, and characterized. The detector module can simultaneously measure the two orthogonal linear-polarized components of the incident THz waves, and polarization-resolved imaging of Gaussian beam and birefringent samples was performed. The single-pixel detector demonstrated here is suitable for array applications and has significant impact on remote sensing, through-barrier imaging, and detection/identification applications.
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Dominik Bachmann, Rolf Broennimann, Luis Nicklaus Caceres, Sofie L. Gnannt, Erwin Hack, Elena Mavrona, Daniel Sacre, Peter Zolliker
Summary: THz-Time domain spectroscopic imaging is achieved by combining robotic scanning, continuous signal acquisition, and holographic reconstruction to enhance imaging resolution. The method is applied to a metallic Siemens star for resolution quantification and to wood samples for showcasing the technique on a non-metallic object with an unknown structure.
APPLIED SCIENCES-BASEL
(2023)
Article
Physics, Applied
Francois Bruno, Loic Saint-Martin, Damien Thuau, Bertrand Audoin
Summary: In this study, a periodic stack of nanometric layers made of gold and lithium fluoride was used to amplify the strain generated by the photo-thermal effect. It was found that using this composite structure resulted in a 20-fold amplification of the signal.
APPLIED PHYSICS LETTERS
(2022)
Article
Engineering, Aerospace
Lin He, Xiaoge Lu, Junhao Han, Zhengbang Wu, Shihe Yi
Summary: This study investigates the coherent structures that arise during flat-plate boundary layer transition at Mach number 3.4 using a custom-built hyper-rate imaging system. The evolution of transitional structures is examined in both the Eulerian and Lagrangian reference frames. The upstream evolution is dominated by the generation of new hairpin structures, while the downstream evolution is mainly influenced by interactions among multiple structural types. The breakdown of existing structures, possibly due to interactions among structures with similar scales, is also observed.
CHINESE JOURNAL OF AERONAUTICS
(2023)
Article
Physics, Applied
Dekel Raanan, Man Suk Song, William A. Tisdale, Dan Oron
Summary: This study extends image scanning microscopy to second harmonic generation (SHG) by extracting the complex field amplitude of the second-harmonic beam, allowing for super-resolved phase-sensitive SHG microscopy.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Nikoleta Kotsina, Dave Townsend
Summary: Time-resolved photoelectron imaging (TRPEI) is a highly differential technique used to study the dynamics of non-adiabatic energy redistribution in electronically excited states of molecules. While the method has broad research significance, there are limitations that need to be addressed. Through various examples, challenges commonly encountered in the analysis and interpretation of experimental data are illustrated, along with initial thoughts on potential solutions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Cell Biology
Elena A. May, Marian Kalocsay, Ines Galtier D'Auriac, Patrick S. Schuster, Steven P. Gygi, Maxence Nachury, David U. Mick
Summary: The study utilized quantitative mass spectrometry and proximity labeling techniques to profile the time-dependent alterations of the ciliary proteome in response to Hedgehog signals, identifying new proteins involved in Hedgehog signaling and highlighting the important roles of PKA and Paladin.
JOURNAL OF CELL BIOLOGY
(2021)
Article
Physics, Applied
Nizar Chaouachi, Sihem Jaziri
Summary: We develop a theoretical study to evaluate the dynamic photoemission spectrum of exciton steady-states in monolayer transition metal dichlacogenides. The effect of dielectric environment on exciton binding energies is discussed. Coherent coupling between 1s and 2s excitons and quantum beat phenomena are observed.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Analytical
Hoseong Yoo, Jangsun Kim, Yeong Hwan Ahn
Summary: In this study, a 3D THz time-of-flight (TOF) imaging technique was developed using reflective optics to preserve the high-frequency components from a THz antenna. The imaging tool proved effective in inspecting the packaged chip with high lateral and longitudinal resolution. The phase information in 2D and 3D images was shown to be a powerful tool in identifying defects, particularly delamination in the chip, which can have a detrimental impact on the stability of the packaged chip.
Article
Chemistry, Multidisciplinary
Shichao Sun, Haiwang Yong, Feng Chen, Shaul Mukamel
Summary: The ring current of Mg-phthalocyanine varies with time under UV excitation, showing migration of current density among different regions. By calculating the X-ray circular dichroism spectrum, we can obtain the current signals induced by different excited state pairs.
Article
Physics, Nuclear
T. Schietinger, M. Pedrozzi, M. Aiba, V. Arsov, S. Bettoni, B. Beutner, M. Calvi, P. Craievich, M. Dehler, F. Frei, R. Ganter, C. P. Hauri, R. Ischebeck, Y. Ivanisenko, M. Janousch, M. Kaiser, B. Keil, F. Lohl, G. L. Orlandi, C. Ozkan Loch, P. Peier, E. Prat, J. -Y. Raguin, S. Reiche, T. Schilcher, P. Wiegand, E. Zimoch, D. Anicic, D. Armstrong, M. Baldinger, R. Baldinger, A. Bertrand, K. Bitterli, M. Bopp, H. Brands, H. H. Braun, M. Bronnimann, I. Brunnenkant, P. Chevtsov, J. Chrin, A. Citterio, M. Csatari Divall, M. Dach, A. Dax, R. Ditter, E. Divall, A. Falone, H. Fitze, C. Geiselhart, M. W. Guetg, F. Hammerli, A. Hauff, M. Heiniger, C. Higgs, W. Hugentobler, S. Hunziker, G. Janser, B. Kalantari, R. Kalt, Y. Kim, W. Koprek, T. Korhonen, R. Krempaska, M. Laznovsky, S. Lehner, F. Le Pimpec, T. Lippuner, H. Lutz, S. Mair, F. Marcellini, G. Marinkovic, R. Menzel, N. Milas, T. Pal, P. Pollet, W. Portmann, A. Rezaeizadeh, S. Ritt, M. Rohrer, M. Schar, L. Schebacher, St. Scherrer, V. Schlott, T. Schmidt, L. Schulz, B. Smit, M. Stadler, B. Steffen, L. Stingelin, W. Sturzenegger, D. M. Treyer, A. Trisorio, W. Tron, C. Vicario, R. Zennaro, D. Zimoch
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2016)
Article
Engineering, Electrical & Electronic
K. Przygoda, R. Rybaniec, L. Butkowski, C. Gerth, P. Peier, C. Schmidt, B. Steffen, H. Schlarb
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
(2017)
Article
Optics
P. Peier, K. A. Nelson, T. Feurer
APPLIED PHYSICS B-LASERS AND OPTICS
(2010)
Article
Instruments & Instrumentation
P. N. Juranic, A. Stepanov, P. Peier, C. P. Hauri, R. Ischebeck, V. Schlott, M. Radovic, C. Erny, F. Ardana-Lamas, B. Monoszlai, I. Gorgisyan, L. Patthey, R. Abela
JOURNAL OF INSTRUMENTATION
(2014)
Article
Physics, Multidisciplinary
P. Peier, H. Merbold, V. Pahinin, K. A. Nelson, T. Feurer
NEW JOURNAL OF PHYSICS
(2010)
Article
Physics, Nuclear
F. Mueller, P. Peier, V. Schlott, B. Steffen, T. Feurer, P. Kuske
PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
(2012)
Editorial Material
Instruments & Instrumentation
C. Kessler, D. T. Burns, P. Roger, C. Kottler, S. Voros, P. Peier
Article
Chemistry, Inorganic & Nuclear
Tommaso Stefano Carzaniga, Nicholas P. van der Meulen, Roger Hasler, Christian Kottler, Peter Peier, Andreas Turler, Etienne Vermeulen, Christof Vockenhuber, Saverio Braccini
APPLIED RADIATION AND ISOTOPES
(2019)
Article
Instruments & Instrumentation
B. Steffen, Ch. Gerth, M. Caselle, M. Felber, T. Kozak, D. R. Makowski, U. Mavric, A. Mielczarek, P. Peier, K. Przygoda, L. Rota
REVIEW OF SCIENTIFIC INSTRUMENTS
(2020)
Article
Chemistry, Analytical
Cigdem Ozkan Loch, Michael Alexander Eichenberger, Michele Togno, Simon Pascal Zinsli, Martina Egloff, Angela Papa, Rasmus Ischebeck, Antony John Lomax, Peter Peier, Sairos Safai
Article
Radiology, Nuclear Medicine & Medical Imaging
Andreas Schueller, Sophie Heinrich, Charles Fouillade, Anna Subiel, Ludovic De Marzi, Francesco Romano, Peter Peier, Maria Trachsel, Celeste Fleta, Rafael Kranzer, Marco Caresana, Samuel Salvador, Simon Busold, Andreas Schonfeld, Malcolm McEwen, Faustino Gomez, Jaroslav Solc, Claude Bailat, Vladimir Linhart, Jan Jakubek, Jorg Pawelke, Marco Borghesi, Ralf-Peter Kapsch, Adrian Knyziak, Alberto Boso, Veronika Olsovcova, Christian Kottler, Daniela Poppinga, Iva Ambrozova, Claus-Stefan Schmitzer, Severine Rossomme, Marie-Catherine Vozenin
PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS
(2020)
Proceedings Paper
Physics, Applied
A. Borysenko, N. Hiller, A. -S. Mueller, B. Steffen, P. Peier, Y. Ivanisenko, R. Ischebeck, V. Schlott
INTERNATIONAL CONFERENCE ON LASER APPLICATIONS AT ACCELERATORS, LANET 2015
(2015)
Proceedings Paper
Engineering, Electrical & Electronic
I. Gorgisyan, P. N. Juranic, R. Ischebeck, A. Stepanov, V. Schlott, C. Pradervand, L. Patthey, M. Radovic, R. Abela, C. P. Hauri, B. Monoszlai, R. Ivanov, P. Peier, J. Liu, T. Togashi, S. Owada, K. Ogawa, T. Katayama, M. Yabashi, L. Rivkin
ADVANCES IN X-RAY FREE-ELECTRON LASERS INSTRUMENTATION III
(2015)
Proceedings Paper
Instruments & Instrumentation
Lerch Ph, L. Quaroni, J. Wambach, J. Schneider, D. B. Armstrong, D. Rossetti, F. L. Mueller, P. Peier, V Schlott, L. Carroll, P. Friedli, H. Sigg, S. Stutz, M. Tran
6TH WORKSHOP ON INFRARED SPECTROSCOPY AND MICROSCOPY WITH ACCELERATOR-BASED SOURCES (WIRMS11)
(2012)
