Article
Optics
Ning Wang, Matthias Zeisberger, Uwe Huebner, Markus A. Schmidt
Summary: The efficiency of light incoupling in commonly used optical fibers can be improved by functionalizing them with arrays of metallic nanodots, resulting in enhanced large-angle light-collection performance at multiple wavelengths. Higher diffraction orders at visible wavelengths contribute significantly to the light-coupling efficiency, with the potential for further improvement through the use of powerful nanostructures such as metasurfaces or dielectric gratings. This concept opens up possibilities for high-performance fiber-based optical devices, particularly in endoscopic-type applications in life science and light collection within quantum technology.
Article
Chemistry, Analytical
Elena Miliutina, Jaroslav Zadny, Olga Guselnikova, Jan Storch, Hana Walaska, Anna Kushnarenko, Vasilii Burtsev, Vaclav Svorcik, Oleksiy Lyutakov
Summary: The study successfully created chiroplasmonic fiber probes for environmental chirality monitoring, where the selective immobilization and transfer of enantiomers led to the excitation of chiral plasmon waves, enabling sensitive detection of left- or right-handed molecules as well as biomolecular conformations.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Review
Chemistry, Multidisciplinary
Andrew Lininger, Giovanna Palermo, Alexa Guglielmelli, Giuseppe Nicoletta, Madhav Goel, Michael Hinczewski, Giuseppe Strangi
Summary: The scientific effort to control the interaction between light and matter has experienced exponential growth in the last 2 decades. This growth has been facilitated by the development of scientific and technological tools that allow manipulation of light at sub-wavelength scales, leading to the discovery of novel phenomena across different research areas. This review focuses on the role of chirality in light-matter interactions, providing an overview of its properties, materials, and applications, and discussing the future prospects, including the incorporation of machine learning in designing advanced chiroptical materials to enhance and control light-matter interactions at various scales.
ADVANCED MATERIALS
(2023)
Article
Optics
Mingjie Wang, Yang Li, Yutao Tang, Jiafei Chen, Rong Rong, Guixin Li, Tun Cao, Shumei Chen
Summary: This study reports on the use of nonlinear chiroptical holography using Pancharatnam-Berry phase controlled achiral metasurfaces. The proposed metasurface enables spin selective nonlinear chiroptical holography through the second harmonic process on gold plasmonic metasurfaces. This has significant implications for multifunctional wavefront engineering and optical information processing.
LASER & PHOTONICS REVIEWS
(2022)
Article
Biochemical Research Methods
Kessia Nattaly Oliveira dos Santos, Monica Benicia Mamian-Lopez
Summary: Optical sensors can detect various substances, from biological samples to hazardous substances. In this study, a colorimetric nanoantenna sensor using gold nanoparticles embedded in poly(vinyl alcohol) and decorated with a dye was constructed. The sensor demonstrated potential reusability and was used to visually detect H2O2 with a smartphone-based app. Chemometric modeling of the app data allowed for a detection limit of 0.0058% of H2O2 and visual observation of sensor changes, supporting the combination of nanoantenna sensors with chemometric tools for sensor design. This approach has the potential to enable visual detection and colorimetric quantification of analytes in complex samples.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Xiong Deng, Shen Shen, Yanli Xu, Jiangtao Liu, Jun Li, Zhenhua Wu
Summary: This study investigates photonic-crystal-like devices and microcavities in graphene. The results show that these graphene-based devices can be significantly smaller in size compared to conventional photonic crystals, thanks to the shorter optical transport wavelength in graphene. By changing the applied voltage, the functionality of the devices can be altered, making them highly programmable and adjustable. Furthermore, these devices can be integrated with traditional microelectronic circuits, leading to potential applications in photonic integrated circuits and computing.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
Xiong Deng, Shen Shen, Yanli Xu, Jiangtao Liu, Jun Li, Zhenhua Wu
Summary: This theoretical study investigates photonic-crystal-like devices and microcavities in graphene. The results show that graphene-based devices can be scaled down significantly compared to conventional photonic crystals due to the shorter optical transport wavelength in graphene. The devices have high programmability and can be integrated with traditional microelectronic circuits, offering potential applications in photonic integrated circuits and computing.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Tongcheng Yu, Francisco Rodriguez, Fred Schedin, Vasyl G. Kravets, Vladimir A. Zenin, Sergey I. Bozhevolnyi, Konstantin S. Novoselov, Alexander N. Grigorenko
Summary: Modern nano-optics and nanophotonics rely heavily on the precise formation of nanostructured light fields. Accurate and deterministic light field formation and characterization are essential for device operation and understanding physical mechanisms. Techniques for direct conversion of light to electrical signals with precise imaging of nanoscale light could provide non-invasive and high spatial resolution imaging.
COMMUNICATIONS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Amit R. Dhawan, Michel Nasilowski, Zhiming Wang, Benoit Dubertret, Agnes Maitre
Summary: Single-emitter plasmonic patch antennas are room-temperature deterministic single-photon sources that exhibit highly accelerated and directed single-photon emission. The deterministic room-temperature in situ optical lithography protocol is used to position the plasmonic structure nondestructively on any selected single-emitter with 3D nanoscale control. The presented antenna induces a 1000-fold effective increase in the absorption cross-section and shows nonlinearly enhanced emission under high pumping.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Fadime Mert Balci, Sema Sarisozen, Nahit Polat, C. Meric Guvenc, Ugur Karadeniz, Ayhan Tertemiz, Sinan Balci
Summary: Advances in colloid chemistry and nanofabrication have enabled the synthesis of noble monometallic and bimetallic nanocrystals with tunable optical properties, including the formation of plasmon-exciton hybrid states called plexxitons. To expand the application scope, the development of new plexxitonic nanocrystals with outstanding optical and chemical properties remains a key goal and challenge. The manipulation of nanoparticle shapes and material combinations plays a crucial role in achieving this goal.
NANOSCALE ADVANCES
(2021)
Article
Computer Science, Interdisciplinary Applications
Petr Klapetek, Petr Grolich, David Nezval, Miroslav Valtr, Radek Slesinger, David Necas
Summary: This article introduces an open-source software package for analyzing the performance of nanoscale devices, with special features handling models of imperfect nanoscale objects, including adding random roughness. The method is compared to conventional optical approaches, showing significant practical applicability in areas requiring repeated calculations.
COMPUTER PHYSICS COMMUNICATIONS
(2021)
Review
Chemistry, Multidisciplinary
Bin Ai, Yujing Sun, Yiping Zhao
Summary: This review provides an overview of plasmonic hydrogen sensors (PHS) based on nanostructures. PHS offer high sensitivity, fast response speed, miniaturization, and high-degree of integration. The review discusses the working principle, sensing properties, and the effects of resonance mode, configuration, material, and structure on the sensing performances. It also summarizes the advantages and disadvantages of different types of plasmonic nanostructures and proposes potential development directions. The aim of this review is to clarify current strategies for PHS and provide a comprehensive understanding of their working principle to inspire innovative designs and execution of advanced hydrogen sensors.
Article
Quantum Science & Technology
Arpad Kurko, Peter Domokos, Andras Vukics, Thomas Baekkegaard, Nikolaj Thomas Zinner, Jozsef Fortagh, David Petrosyan
Summary: In this study, we investigate the emission of photons from a coherently prepared atomic ensemble in an elongated harmonic trap with normal density distribution. By determining the parameters of paraxial optics, we match the mode geometry of the emitted radiation and collect it optimally into an optical waveguide.
EPJ QUANTUM TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Eui-Sang Yu, Sang-Hun Lee, Geon Lee, Q-Han Park, Aram J. Chung, Minah Seo, Yong-Sang Ryu
Summary: Vertically aligned nanogap-hybridized metasurfaces can efficiently trap traveling nanoparticles in the sensing region, enabling the real-time monitoring of nanoparticle assemblies in liquids. This approach, together with electric tweezing via optical hotspots, shows promise for underwater THz analysis and understanding physicochemical events within a broad wavelength regime.
Article
Chemistry, Multidisciplinary
Arash Ahmadivand
Summary: This study reports on the near-ultraviolet light emission from enhanced tunneling of electrons using aluminum nanoelectrodes, which have high electron density and low screening capabilities compared to traditional noble metals. This breakthrough enables the generation of high-energy beams and accelerates the implementation of electrically tunable and ultradense UV light sources.
Article
Optics
Xue Qi, Kay Schaarschmidt, Mario Chemnitz, Markus Schmidt
Article
Optics
Saher Junaid, Kay Schaarschmidt, Mario Chemnitz, Maxime Chambonneau, Stefan Nolte, Markus A. Schmidt
Article
Optics
Bumjoon Jang, Julian Gargiulo, Mario Ziegler, Ron Fatobene Ando, Uwe Huebner, Stefan A. Maier, Markus A. Schmidt
Article
Chemistry, Analytical
Jisoo Kim, Bumjoon Jang, Julian Gargiulo, Johannes Buerger, Jiangbo Zhao, Swaathi Upendar, Thomas Weiss, Stefan A. Maier, Markus A. Schmidt
Summary: The optofluidic light cage concept introduced in this study utilizes a novel on-chip hollow core waveguide platform achieved through 3D nanoprinting, allowing for fast and reliable integrated spectroscopy with unique structural features and performance. This light cage is not only limited to absorption spectroscopy, but can also be applied in other spectroscopy applications, opening up new avenues for highly integrated sensing devices.
ANALYTICAL CHEMISTRY
(2021)
Article
Crystallography
Xue Qi, Kay Schaarschmidt, Guangrui Li, Saher Junaid, Ramona Scheibinger, Tilman Luehder, Markus A. Schmidt
Summary: The spectral distance between the pump and the waveguide has a significant impact on the generation of supercontinuum. The dispersion landscape of a bandgap fiber varies greatly with wavelength compared to an air-hole fiber, leading to dramatic changes in dispersive wave generation with slight adjustments in pump wavelength. This study provides insights into nonlinear frequency conversion and the relevance of third order dispersion for interband energy transfer in resonance-enhanced waveguide systems.
Article
Optics
Ning Wang, Matthias Zeisberger, Uwe Huebner, Markus A. Schmidt
Summary: The efficiency of light incoupling in commonly used optical fibers can be improved by functionalizing them with arrays of metallic nanodots, resulting in enhanced large-angle light-collection performance at multiple wavelengths. Higher diffraction orders at visible wavelengths contribute significantly to the light-coupling efficiency, with the potential for further improvement through the use of powerful nanostructures such as metasurfaces or dielectric gratings. This concept opens up possibilities for high-performance fiber-based optical devices, particularly in endoscopic-type applications in life science and light collection within quantum technology.
Article
Physics, Applied
Xinggang Shang, Ning Wang, Zimeng Wang, Hanqing Jiang, Yunfei Jia, Nanjia Zhou, Min Qiu
Summary: This study presents the design and manufacturing of triple-helix-shaped micro-springs using two-photon polymerization technology. The mechanical properties, particularly the spring constant, were systematically studied. The results show that the spring constant can be actively tuned over a wide range while maintaining high resolution and agreement.
APPLIED PHYSICS LETTERS
(2022)
Article
Optics
Simin Cao, Xinggang Shang, Hongyan Yu, Liping Shi, Lei Zhang, Ning Wang, Min Qiu
Summary: In this study, a fiber-tipped Fabry-Perot interferometer (FPI) for liquid refractive index (RI) measurement is proposed and demonstrated using two-photon polymerization lithography. The FPI is designed with an open-cell microstructure for compatibility with the aqueous environment. The sensor exhibits high RI sensitivity and low detection limit, making it suitable for chemical and biological sensing applications.
Article
Chemistry, Multidisciplinary
Yitong Gu, Ning Wang, Haorui Shang, Fei Yu, Lili Hu
Summary: This study investigates the influence of gratings on the coupling efficiency of waveguides through theoretical models and numerical simulations. The research finds that carefully designed gratings can significantly improve the wide-angle input efficiency of waveguides. It provides guidance for simulating the effects of gratings on the light-gathering abilities of waveguides and has potential applications in fields such as bioanalytical instrumentation and quantum photon probes.
Article
Optics
Linqiao Gan, Fei Yu, Yazhou Wang, Ning Wang, Xinyue Zhu, Lili Hu, Chunlei Yu
Summary: In this paper, the application of a deep learning neural network (DNN) in the dispersion-oriented inverse design of photonic-crystal fiber (PCF) for four-wave mixing (FWM) fine-tuning is demonstrated. A large dataset of phase-matching curves of various PCF designs is generated using the empirical formula of PCF dispersion instead of numerical simulation, significantly improving the accuracy of the DNN prediction. The accuracies of DNNs' predicted PCF structure parameters are all above 95%. The simulations of the DNN-predicted PCFs structure show that the FWM wavelength has an average numerical mean square error (MAE) of 1.92 nm from the design target. With the assistance of DNN, a specific PCF for wavelength conversion from 1064 nm to 770 nm is designed and fabricated for biomedical imaging applications, with the signal wavelength measured at 770.2 nm.
Review
Optics
Ning Wang, Wei Yan, Yurui Qu, Siqi Ma, Stan Z. Li, Min Qiu
Summary: Applying intelligent algorithms to conceive nanoscale meta-devices has become a flourishing and highly active scientific topic. The use of artificial intelligence in accelerating the prototyping of photonic layouts with enhanced performance is at the forefront of this field, showing a trend towards inverse creation of novel designs. By discussing algorithm-assisted nanophotonic designs, mutual benefits between the fields of AI and photonics can be examined.
Article
Chemistry, Physical
Jiangbo (Tim) Zhao, Cong Qi, Guangrui Li, Markus A. Schmidt
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)
Article
Optics
I Allayarov, M. A. Schmidt, T. Weiss
Article
Chemistry, Multidisciplinary
Shiqi Jiang, Jiangbo Zhao, Ronny Foerster, Stefan Weidlich, Malte Plidschun, Jens Kobelke, Ron Fatobene Ando, Markus A. Schmidt
