Article
Chemistry, Multidisciplinary
Debabrata Goswami
Summary: For studying any event, measurement is not enough; control is required. Spatial and temporal domains need to be jointly accounted for in order to maximize the capability to exert control and manipulate. This article presents a novel approach using femtosecond pulse-shaping to achieve spatiotemporal control by spatially manipulating the system through trapping and exerting temporal control using shaped femtosecond pulses. The use of ultrafast femtosecond lasers enables temporal control of molecular dynamics and circumvention of relaxation processes at microscopic timescales.
FRONTIERS IN CHEMISTRY
(2023)
Article
Optics
M. B. Hild, M. Safaeisadegh, A. Lindinger
Summary: Spatial and temporal laser pulse shaping was used for measuring two-photon excited fluorescence of dyes with tailored pulses in two adjacent ranges of the laser spectrum. Selective phase shaping of the pulses led to increased fluorescence contrasts between different dyes and spatially localized fluorescence in the overlap region. The developed method can be applied for more complex two-photon excited fluorescence structures with valuable perspectives for optical and biophotonic applications.
Article
Chemistry, Multidisciplinary
Rene Geromel, Philip Georgi, Maximilian Protte, Shiwei Lei, Tim Bartley, Lingling Huang, Thomas Zentgraf
Summary: Dispersion is a common phenomenon in optical systems and is often undesirable, especially in nonlinear-optical experiments requiring ultrashort laser pulses. A compact pulse-shaping device using plasmonic metasurfaces is introduced to achieve full dispersion control by applying a designed spectral phase delay. Additionally, the device can reshape incident laser pulses into more complex forms, such as a double pulse, through specific phase encodings. The device's performance is verified using an SHG-FROG measurement setup and a retrieval algorithm to extract the dispersion applied to the incident laser pulse.
Article
Multidisciplinary Sciences
Arnald Puy, Pierfrancesco Beneventano, Simon A. Levin, Samuele Lo Piano, Tommaso Portaluri, Andrea Saltelli
Summary: Mathematical models are becoming more detailed for better predictions and insights, even without validation or training data. However, this practice can lead to fuzzier estimates as it increases the effective dimensions of the model.
Article
Optics
Yonghao Mi, Kyle Johnston, Valentina Shumakova, Soren H. Moller, Kamalesh Jana, Chunmei Zhang, Andre Staudte, Shawn Sederberg, Paul B. Corkum
Summary: Intense laser fields focused in ambient air can generate high-bandwidth current densities, with the amplitude and sign of these currents controlled by adjusting the relative phase. Two-color filamentation in gas targets allows for increasing the energy of terahertz pulses. However, controlling the waveform stability is challenging. By comparing current density detection and terahertz field detection, a clear connection between phase-dependent plasma currents and terahertz radiation is established. Current measurement can be used as a feedback parameter to stabilize the terahertz waveform, providing a route to energetic terahertz pulses with exceptional waveform stability.
PHOTONICS RESEARCH
(2022)
Article
Optics
Dmitry Obydennov, Konstantin B. Yushkov, Vladimir Ya. Molchanov
Summary: We developed a tunable system for shaping the spectral and spatial frequency of ultrashort laser pulses using acousto-optic filters. This system allows for the creation of arbitrary axially symmetric multi-wavelength field configurations and enables high-speed control. Experimental results demonstrate the independent generation of different colored intensity distributions from a single laser beam using this system.
Article
Chemistry, Multidisciplinary
Ignacio Insua, Julian Bergueiro, Alejandro Mendez-Ardoy, Irene Lostale-Seijo, Javier Montenegro
Summary: This article discusses the current status and future prospects of two-dimensional supramolecular assemblies, focusing on challenges and development directions such as hierarchical multicomponent assembly, directional non-covalent growth, and internal structural control.
Article
Multidisciplinary Sciences
Kai Zhang, Zhesen Yang, Chen Fang
Summary: The authors introduce the skin effect discovered in a one-dimensional experiment and establish its universality in two and higher dimensional non-Hermitian systems. They also propose two new types of skin effect and show that systems with exceptional points exhibit the skin effect.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Masafumi Koga, Yuto Miyake, Mizuki Hayasaka, Hikaru Sotome, Hiroshi Miyasaka
Summary: The photoionization dynamics of N,N-dimethylaniline (DMA) from highly electronically excited states in ethanol solution were studied using femtosecond two-pulse two-photon excitation transient absorption (2PE-TA) spectroscopy. The ionization occurred via a rapid channel and a slow one, with the slow ionization regulated by the formation of anionic species just before the completion of the solvation of the electron.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Pablo Roldan-Varona, Luis Rodriguez-Cobo, Jose Miguel Lopez-Higuera
Summary: This work explores the design, simulation, and manufacture of symmetric cladding waveguides in optical fibers using the slit beam shaping technique. The cladding waveguides have low losses (0.21 dB/cm), quasi-step-index refractive index profile, and circular cross-section, allowing them to couple evanescent light from the core of a single-mode fiber to each of the four cores of a multicore fiber.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Ning Mao, Runhan Li, Xiaorong Zou, Ying Dai, Baibiao Huang, Chengwang Niu
Summary: The interplay between ferroelectricity and band topology is studied in two-dimensional ferroelectrics. It is demonstrated that ferroelectricity and corner states are coupled together by crystallographic symmetry, allowing for electric control of higher-order topology. Experimental synthesis of two-dimensional ferroelectrics, such as In2Se3, BN, and SnS, is identified as realistic material candidates for ferroelectric higher-order topological insulators. This work provides insights into traditional ferroelectric materials and opens up avenues for manipulation of topology in next-generation electronic devices by bridging higher-order topology and ferroelectricity.
Article
Materials Science, Multidisciplinary
Wei-Wang Yu, Ying Liu, Weizhen Meng, Heyan Liu, Jianbo Gao, Xiaoming Zhang, Guodong Liu
Summary: This study focuses on the topological features of higher-order nodal points in phononic systems, finding that the combination of rotation symmetry and time-reversal symmetry can support their existence in two-dimensional systems. The highest order of momentum in 2D systems is identified as the second order, known as the quadratic nodal point (QNP). The research reveals the mechanism for band structure deformations and provides potential candidate materials for further exploration of higher-order nodal points in phononic systems.
Article
Engineering, Electrical & Electronic
Zhiqiang Fan, Xiang Li, Jun Su, Qi Qiu
Summary: A frequency-modulated interrupted continuous waveform (FMICW) generator with an ultra-large bandwidth based on optical heterodyne detection is proposed and experimentally demonstrated. The FMICW generator is implemented through the heterodyne detection of a stable optical carrier and a gate-function-modulated frequency-chirped optical pulse. The generated FMICW has a bandwidth of over 20 GHz and a temporal duration of around 200 μs, and it is fully tunable in terms of gate-function period and duty ratio.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Optics
F. E. N. G. C. H. A. O. Ni, H. O. N. G. G. E. N. LI, H. A. I. G. A. N. G. Liu, Y. U. A. N. L. I. N. Zheng, X. I. A. N. F. E. N. G. Chen
Summary: Pulse shaping is crucial for various applications of ultrafast lasers. A high-speed programmable lithium niobate spatial light modulator with 128 individual modulation channels and a modulation speed of 1 MHz is demonstrated. The proposed high-speed pulse shaper scheme opens new avenues for future applications of ultrafast science.
Article
Engineering, Electrical & Electronic
Ali Mirani, Erik Agrell, Magnus Karlsson
Summary: This article explores lattice-based geometrically shaped modulation formats in multidimensional Euclidean space and presents fast, low complexity modulation and demodulation algorithms, making these formats practical even with extremely high constellation sizes. Compared with conventional QAM formats, these modulation formats show an improvement in uncoded bit error rate performance.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Physics, Applied
Chen-Ta Ku, Heh-Nan Lin, Chen-Bin Huang
APPLIED PHYSICS LETTERS
(2015)
Article
Engineering, Electrical & Electronic
Jhih-Min Wun, Hao-Yun Liu, Yu-Lun Zeng, Shang-Da Yang, Ci-Ling Pan, Chen-Bin Huang, Jin-Wei Shi
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2016)
Article
Optics
Yi-Song Lin, Chen-Bin Huang
Article
Optics
Jianqi Hu, Camille-Sophie Bres, Chen-Bin Huang
Article
Optics
Jianqi Hu, Simon J. Fabbri, Chen-Bin Huang, Camille-Sophie Bres
Article
Chemistry, Multidisciplinary
Tzu-Yu Chen, Julian Obermeier, Thorsten Schumacher, Fan-Cheng Lin, Jer-Shing Huang, Markus Lippitz, Chen-Bin Huang
Article
Optics
Dhruv Tyagi, Tzu-Yu Chen, Chen-Bin Huang
LASER & PHOTONICS REVIEWS
(2020)
Article
Chemistry, Multidisciplinary
Tzu-Yu Chen, Dhruv Tyagi, Yun-Chorng Chang, Chen-Bin Huang
Article
Multidisciplinary Sciences
Yanan Dai, Zhikang Zhou, Atreyie Ghosh, Roger S. K. Mong, Atsushi Kubo, Chen-Bin Huang, Hrvoje Petek
Article
Physics, Applied
Atreyie Ghosh, Sena Yang, Yanan Dai, Zhikang Zhou, Tianyi Wang, Chen-Bin Huang, Hrvoje Petek
Summary: Topology is an intrinsic property of orbital symmetry and elemental spin-orbit interaction, and designed optical fields can break existing symmetries to impose topology. Through photonic spin-orbit interaction, light can induce topological interactions in matter, such as chiral chemistry, or non-Abelian physics.
APPLIED PHYSICS REVIEWS
(2021)
Article
Physics, Applied
Yanan Dai, Zhikang Zhou, Atreyie Ghosh, Karan Kapoor, Maciej Dabrowski, Atsushi Kubo, Chen-Bin Huang, Hrvoje Petek
Summary: We report a study on transient plasmonic spin skyrmion topological quasiparticle using ultrafast interferometric time-resolved photoemission electron microscopy. By modeling and experimental measurements, we obtain the spin texture, boundary, and topological charges of the skyrmion, and discover its ability to drive magnetoelectric responses.
APPLIED PHYSICS REVIEWS
(2022)
Article
Nanoscience & Nanotechnology
Pei-Yuan Wu, Yun-Chorng Chang, Chen-Bin Huang
Summary: This paper demonstrates the implementation of plasmonic half-subtractor and demultiplexer circuits based on transmission lines, without the need for cascading, using the unique polarization selectivity of surface plasmon modal behaviors. The circuits can be operated using a single laser beam with predefined linear polarizations.
Proceedings Paper
Engineering, Electrical & Electronic
Hao-Yun Liu, Tzu-Yu Chen, Fan-Cheng Lin, Jer-Shing Huang, Chen-Bin Huang
2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC)
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
Jhih-Min Wun, Hao-Yun Liu, Yu-Lun Zeng, Ci-Ling Pan, C. -B. Huang, Jin-Wei Shi
2015 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC)
(2015)
Proceedings Paper
Engineering, Electrical & Electronic
Ming-Hsien Lin, Chen-Bin Huang
2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2015)
