Article
Optics
Chen Guo, Miguel Miranda, Ann-kathrin Raab, Anne-lise Viotti, Paulo tiago Guerreiro, Rosa Romero, Helder Crespo, Anne L'Huillier, Cord l. Arnold
Summary: We propose a single-shot measurement scheme for the carrier-envelope phase offset of ultrashort laser pulses, which can achieve high-repetition rate. The carrier-envelope phase is evaluated optically through the spectral fringes produced by f-2f nonlinear interferometry. The experimental results show excellent agreement with the simultaneous measurement using a fast line-scan camera.
Article
Optics
Yangyang Liu, John E. Beetar, Jonathan Nesper, Shima Gholam-Mirzaei, Michael Chini
Summary: By measuring nonlinear photocurrents in a Si-based image sensor chip, few-cycle optical pulses in the mid-infrared region can be captured in a single shot, and the temporal resolution of waveforms is determined by the spatial resolution of the image sensor.
Article
Optics
Haocheng Tang, Ting Men, Xianglei Liu, Yaodan Hu, Jingqin Su, Yanlei Zuo, Ping Li, Jinyang Liang, Michael C. Downer, Zhengyan Li
Summary: By combining the coded aperture snapshot spectral imaging (CASSI) technique with a global 3D phase retrieval procedure, we have demonstrated the ability to draw a 3D map of an ultrafast optical field using compressed optical field topography (COFT). This technique can fully characterize the femtosecond laser pulse and observe the real-time propagation of light.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Maximilian Graml, Maximilian Nitsch, Adrian Seith, Ferdinand Evers, Jan Wilhelm
Summary: High-harmonic generation (HHG) is a versatile technique for probing ultrafast electron dynamics. It is sensitive to the electronic properties of the target and depends on the waveform of the laser pulse. We derive a formula describing the parametric dependencies of the carrier envelope phase (CEP) shifts in the high-harmonic spectrum, confirming its consistency with experimental observations.
Article
Optics
S. W. Hancock, S. Zahedpour, H. M. Milchberg
Summary: The technique presented in this study allows for the single-shot measurement of the spatiotemporal amplitude and phase of ultrashort laser pulses. It is suitable for characterizing short pulses carrying optical vortices and pulses containing singularities associated with spin/orbital angular momentum or polarization.
Article
Multidisciplinary Sciences
Emma Lomonte, Martin A. Wolff, Fabian Beutel, Simone Ferrari, Carsten Schuck, Wolfram H. P. Pernice, Francesco Lenzini
Summary: The authors successfully integrated superconducting nanowire single photon detectors and electro-optically reconfigurable circuits on a Lithium-Niobate-On-Insulator platform, achieving high-speed modulation and providing blueprints for complex quantum photonic devices.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Xinwei Wang, Hao Wang, Jinlu Wang, Xingsi Liu, Huijie Hao, You Sin Tan, Yilei Zhang, He Zhang, Xiangyan Ding, Weisong Zhao, Yuhang Wang, Zhengang Lu, Jian Liu, Joel K. W. Yang, Jiubin Tan, Haoyu Li, Cheng-Wei Qiu, Guangwei Hu, Xumin Ding
Summary: The authors propose a metasurface-assisted isotropic DIC microscopy technique, which converts rectilinear shear into rotationally symmetric radial shear for single-shot isotropic imaging capabilities. DIC microscopy has been widely used in various fields, such as cellular morphology and particle tracking. However, current commercial DIC microscopy based on prisms only generates anisotropic contrast imaging. The proposed i-DIC microscopy, based on a novel pattern of radial shear interferometry, offers a compact and isotropic imaging solution with the fusion of meta-optics, traditional microscopes, and integrated optical systems.
NATURE COMMUNICATIONS
(2023)
Article
Optics
Eleonore Roussel, Christophe Szwaj, Clement Evain, Bernd Steffen, Christopher Gerth, Bahram Jalali, Serge Bielawski
Summary: Recording electric field evolution in single-shot with THz bandwidth is of great importance in various scientific fields. This study introduces a new spectral decoding technique that enables the recording and analysis of THz waveforms with unprecedented resolution over a long time window. Experimental results demonstrate the potential of this technique in accelerator physics and other applications.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Multidisciplinary Sciences
Benjamin Midtvedt, Jesus Pineda, Fredrik Skarberg, Erik Olsen, Harshith Bachimanchi, Emelie Wesen, Elin K. K. Esbjorner, Erik Selander, Fredrik Hook, Daniel Midtvedt, Giovanni Volpe
Summary: This study proposes a new method for microscopic object detection using machine learning, which can detect objects with sub-pixel accuracy from a single unlabeled image and outperforms traditional methods in terms of accuracy.
NATURE COMMUNICATIONS
(2022)
Letter
Optics
M. Galimberti, F. G. Bisesto, M. Galletti
Summary: The study introduces a single-shot diagnostic method for measuring angular dispersion in femtosecond laser pulses. This can help properly characterize the laser pulse before it is delivered to the target area.
HIGH POWER LASER SCIENCE AND ENGINEERING
(2021)
Article
Optics
Mikhail N. Polyanskiy, Marcus Babzien, Igor Pogorelsky, Rotem Kupfer, Konstantin L. Vodopyanov, Mark A. Palmer
Summary: A new method was developed to measure the nonlinear refractive index of air by analyzing the spatial shape evolution of a laser beam. The study also reported the first measurement of the nonlinear refractive index of air for a very short LWIR laser pulse, showing a 40% lower value compared to a previous measurement with longer pulses.
Article
Instruments & Instrumentation
E. Grace, T. Ma, Z. Guang, D. Alessi, S. Herriot, M. Rhodes, J. Park, R. Trebino
Summary: This article discusses the simulation study on the full characterization of NIF-ARC laser pulses using STRIPED FISH technology, including measurements of temporal and spatial characteristics and simulations of first-order spatiotemporal distortions.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2021)
Article
Optics
Marco P. Fischer, Nicolo Maccaferri, Kevin Gallacher, Jacopo Frigerio, Giovanni Pellegrini, Douglas J. Paul, Giovanni Isella, Alfred Leitenstorfer, Paolo Biagioni, Daniele Brida
Summary: This study focuses on unveiling the dynamics of light pulses interacting with nanosized objects using plasmonics, providing high-resolution analysis in both time and space to better understand and control nanoscale phenomena. By measuring the complex optical field response, the research aims to extend the observation of light-matter interactions in the time domain, opening up opportunities in various research areas related to plasmon-enhanced photonic processes and coherent control.
Article
Multidisciplinary Sciences
Vaclav Hanus, Beatrix Feher, Viktoria Csajbok, Peter Sandor, Zsuzsanna Papa, Judit Budai, Zilong Wang, Pallabi Paul, Adriana Szeghalmi, Peter Dombi
Summary: The authors present a compact on-chip, ambient-air, carrier-envelope phase (CEP) scanning probe and demonstrate a 3D map of the spatial changes of CEP. They also show the ability to control CEP in the focal volume using a spatial light modulator. This research is important for applications of few-cycle laser beams.
NATURE COMMUNICATIONS
(2023)
Article
Automation & Control Systems
Xuan-Thuy Vo, Kang-Hyun Jo
Summary: This article proposes a novel bounding box encoding algorithm integrated into the single-shot detector to consider the flexible distribution of bounding box localization. It introduces detection quality by combining the localization and classification quality to rank detection during nonmaximum suppression. The proposed BBENet achieves state-of-the-art performance in single-shot object detection on benchmark datasets.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2022)
Article
Biochemistry & Molecular Biology
Danielle C. Teles-Ferreira, Cristian Manzoni, Lara Martinez-Fernandez, Giulio Cerullo, Ana Maria de Paula, Rocio Borrego-Varillas
Summary: Understanding the primary steps following UV photoexcitation in sulphur-substituted DNA bases is crucial for developing new phototherapeutic drugs. This study successfully tracks the ultrafast decay mechanisms in 6-thioguanine and provides experimental evidence of fast internal conversion and electron trapping in the triplet manifold.
Review
Physics, Multidisciplinary
Renzo Vanna, Alejandro De la Cadena, Benedetta Talone, Cristian Manzoni, Marco Marangoni, Dario Polli, Giulio Cerullo
Summary: Vibrational microscopies play a key role in cancer diagnosis, providing direct chemical and biomolecular information for more accurate tumor identification. Novel technologies such as coherent Raman scattering and photothermal infrared microscopy show promise in overcoming limitations of traditional techniques.
RIVISTA DEL NUOVO CIMENTO
(2022)
Article
Optics
Marco Piccardo, Vincent Ginis, Andrew Forbes, Simon Mahler, Asher A. Friesem, Nir Davidson, Haoran Ren, Ahmed H. Dorrah, Federico Capasso, Firehun T. Dullo, Balpreet S. Ahluwalia, Antonio Ambrosio, Sylvain Gigan, Nicolas Treps, Markus Hiekkamaki, Robert Fickler, Michael Kues, David Moss, Roberto Morandotti, Johann Riemensberger, Tobias J. Kippenberg, Jerome Faist, Giacomo Scalari, Nathalie Picque, Theodor W. Haensch, Giulio Cerullo, Cristian Manzoni, Luigi A. Lugiato, Massimo Brambilla, Lorenzo Columbo, Alessandra Gatti, Franco Prati, Abbas Shiri, Ayman F. Abouraddy, Andrea Alu, Emanuele Galiffi, J. B. Pendry, Paloma A. Huidobro
Summary: Our ability to manipulate light patterns by combining different electromagnetic modes has significantly improved in recent years. This concept of structured light is being applied across various fields of optics, enabling the generation of classical and quantum states of light, utilization of linear and nonlinear light-matter interactions, and advancements in microscopy, spectroscopy, holography, communication, and synchronization. This Roadmap provides an overview of these areas, their current research, and future developments, emphasizing the power of multimodal light manipulation to inspire new approaches in this vibrant research community.
Article
Chemistry, Multidisciplinary
Andrea Schirato, Giulia Crotti, Mychel Goncalves Silva, Danielle Cristina Teles-Ferreira, Cristian Manzoni, Remo Proietti Zaccaria, Paolo Laporta, Ana Maria de Paula, Giulio Cerullo, Giuseppe Della Valle
Summary: The transient optical response of plasmonic nanostructures is important for studying light harvesting, photocatalytic processes, nonlinear nanophotonics, and all-optical modulation. However, under a nonperturbative excitation regime, the correspondence between the temporal evolution of the dynamic optical signal and the photoexcited hot electrons is not valid.
Article
Physics, Multidisciplinary
M. Henstridge, M. Foerst, E. Rowe, M. Fechner, A. Cavalleri
Summary: Nonlinear phononics is a method for creating transient structural changes in solids. This study extends nonlinear phononics to propagating polaritons, separating the functional response from the optical drive.
Article
Physics, Multidisciplinary
Alessia Candeo, Benedetto Ardini, Marta Ghirardello, Gianluca Valentini, Laurence Clivet, Charlotte Maury, Thomas Calligaro, Cristian Manzoni, Daniela Comelli
Summary: Scientific investigation in the cultural heritage field has been focused on characterizing constituent materials and the conservation status of artworks. Reflectance spectral imaging and hyperspectral imaging have played important roles in mapping pigments, revealing hidden details, and evaluating restorations in paintings. In this study, a novel hyperspectral camera based on the Fourier transform approach is proposed, and its advantages and drawbacks compared to commonly used methods are discussed. The camera is demonstrated to be effective for pigment mapping through analysis routines based on supervised spectral unmixing. The study highlights the potential of the Fourier transform hyperspectral imaging camera for in situ investigation of artistic objects in museum and archaeological sites.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Physics, Multidisciplinary
A. von Hoegen, M. Fechner, M. Foerst, N. Taherian, E. Rowe, A. Ribak, J. Porras, B. Keimer, M. Michael, E. Demler, A. Cavalleri
Summary: In this study, it is shown that certain lattice vibrations in cuprate high-T-c superconductors can induce transient terahertz reflectivity features suggestive of nonequilibrium superconductivity above the critical temperature. Time-resolved measurements reveal a three-order-of-magnitude amplification of a 2.5-THz electronic mode in driven YBa2Cu3O6+x. Theoretical analysis explains these observations by proposing an amplification mechanism for finite-momentum Josephson plasma polaritons. The study also emphasizes the significance of nonlinear mode mixing in amplifying fluctuating modes above the transition temperature in a wide range of materials.
Article
Multidisciplinary Sciences
A. S. Disa, J. Curtis, M. Fechner, A. Liu, A. von Hoegen, M. Foerst, T. F. Nova, P. Narang, A. Maljuk, A. V. Boris, B. Keimer, A. Cavalleri
Summary: Lattice manipulation through optical methods can enhance and stabilize high-temperature ferromagnetism, expanding the potential applications of YTiO3.
Article
Optics
Marco Piccardo, Michael de Oliveira, Veronica R. R. Policht, Mattia Russo, Benedetto Ardini, Matteo Corti, Gianluca Valentini, Jorge Vieira, Cristian Manzoni, Giulio Cerullo, Antonio Ambrosio
Summary: By introducing a diffractive axicon in a pulse shaper, topological-spectral correlation can be imparted to ultrafast pulses in the visible region with a large range of topological charges. This approach allows for the synthesis of ultrashort pulses with tailored spatial and temporal properties, enabling new possibilities in multimode photonics. The use of a diffractive axicon with circular geometry and a hyperspectral off-axis holography technique enables the control and manipulation of various properties of wave packets.
Article
Materials Science, Multidisciplinary
Benedetto Ardini, Cristian Manzoni, Benedetta Squeo, Francesca Villafiorita-Monteleone, Paolo Grassi, Mariacecilia Pasini, Monica Bollani, Tersilla Virgili
Summary: Nowadays, there is a growing demand for alternative non-plastic packaging in the food industry. This study focuses on enhancing the UV absorption properties of popular biodegradable films, cellulose and poly(lactic acid) (PLA), by coating them with thin layers of carbon dots (CDs) dispersed in polyvinyl alcohol (PVA). The results show a significant increase in UV light-absorbing capacity and provide a novel technique for characterizing large surface areas using simultaneous detection of PL spectra.
Article
Physics, Multidisciplinary
E. Rowe, B. Yuan, M. Buzzi, G. Jotzu, Y. Zhu, M. Fechner, M. Foerst, B. Liu, D. Pontiroli, M. Ricco, A. Cavalleri
Summary: Photo-excitation at terahertz and mid-infrared frequencies has been proven to be an effective method for manipulating functionalities in quantum materials. Researchers have observed a metastable zero-resistance phase in K3C60 and discovered the microscopic mechanism underlying photo-induced superconductivity.
Article
Materials Science, Multidisciplinary
Andrea Schirato, Mychel G. Silva, Danielle C. Teles-Ferreira, Cristian Manzoni, Ana Maria de Paula, Giulio Cerullo, Giuseppe Della Valle, Marcel Di Vece
Summary: The photoexcitation of plasmonic nanostructures with ultrashort laser pulses allows for understanding the ultrafast nonlinear optical response and fundamental processes triggered by light absorption. The effects of photoexcitation on plasmonic nanostructures are studied using broadband transient absorption spectroscopy and semiclassical nonlinear simulations. The results provide a comprehensive understanding of the thermo-modulational nonlinearities of plasmonic nanostructures exhibiting resonances close to the interband transition threshold.
ADVANCED PHOTONICS RESEARCH
(2023)
Article
Chemistry, Physical
Danielle Cristina Teles-Ferreira, Ivo Hm van Stokkum, Irene Conti, Lucia Ganzer, Cristian Manzoni, Marco Garavelli, Giulio Cerullo, Artur Nenov, Rocio Borrego-Varillas, Ana Maria de Paula
Summary: This study investigates the mechanism of thionated nucleobases' ultrafast transition from singlet states to triplet states using transient absorption spectroscopy. Experimental results combined with theoretical simulations suggest that the relaxation to the triplet state is mediated by conical intersections promoted by vibrational coherences through the population of an intermediate singlet state.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Proceedings Paper
Optics
Soumen Ghosh, Georg Herink, Antonio Perri, Fabrizio Preda, Cristian Manzoni, Dario Polli, Giulio Cerullo
Summary: Optical activity spectroscopy is widely used to study molecular structures and chiroptical responses. This article presents an innovative and simplified setup for the quick and sensitive measurement of broadband optical activity. The setup eliminates the need for additional devices and allows for highly sensitive measurements and real-time monitoring.
REAL-TIME MEASUREMENTS, ROGUE PHENOMENA, AND SINGLE-SHOT APPLICATIONS VII
(2022)
Article
Materials Science, Multidisciplinary
Marios H. Michael, Michael Foerst, Daniele Nicoletti, Sheikh Rubaiat Ul Haque, Yuan Zhang, Andrea Cavalleri, Richard D. Averitt, Daniel Podolsky, Eugene Demler
Summary: Optical drives at terahertz and midinfrared frequencies in quantum materials are used to study the nonlinear dynamics of collective modes. Recent experiments reveal surprising optical properties of transient states induced by driving. It is shown that these unusual optical properties can be understood from the perspective of a Floquet system.
