We report on the latest advances in printing 3D complex optical systems. We report inclusion of the color black into printing materials, as well as printing without additional alignment onto both sides of a substrate. We examine the influences of strain and stress onto the polarization state of light after propagation. We also present our ansatz to include shrinkage into the systems design. We report on applications in quantum technology, in particular on coupling quantum emission into single mode fibers, on optical trapping, and on multimode imaging in micro endoscopy. We also report on the smallest wide-angle endoscope in the world, which gives aberration corrected images for a viewing angle of 120°.

Harald Giessen (*1966) graduated from Kaiserslautern University with a diploma in Physics and obtained his M.S. and Ph.D. in Optical Sciences from the University of Arizona in 1995 as J.W. Fulbright scholar. After a postdoc at the Max Planck Institute for Solid State Research in Stuttgart he moved to Marburg as assistant professor. From 2001-2004, he was associate professor at the University of Bonn. Since 2005, he is full professor and holds the Chair for Ultrafast Nanooptics in the Department of Physics at the University of Stuttgart. He is also co-chair of the Stuttgart Center of Photonics Engineering, SCoPE. He was guest researcher at the University of Cambridge, and guest professor at the University of Innsbruck and the University of Sydney, at A*Star, Singapore, as well as at Beijing University of Technology. He is associated researcher at the Center for Disruptive Photonic Technologies at Nanyang Technical University, Singapore. He received an ERC Advanced Grant in 2012 for his work on complex nanoplasmonics. He was co-chair (2014) and chair (2016) of the Gordon Conference on Plasmonics and Nanophotonics. He was general chair of the conference Photonics Europe (Strasbourg 2018) and is co-chair of the biannual conference NanoMeta in Seefeld, Austria. He is on the advisory board of the journals "Advanced Optical Materials", "Nanophotonics: The Journal", "ACS Photonics", "ACS Sensors", and "Advanced Photonics". He is a topical editor for ultrafast nanooptics, plasmonics, and ultrafast lasers and pulse generation of the journal "Light: Science & Applications" of Nature Publishing Group. He is a Fellow of the Optical Society of America. In 2018, 2019, 2020 and 2021, he was named „Highly Cited Researcher“ (top 1%) by the Institute of Scientific Information. In 2021, he was elected as a Full Member into the Honor Society Sigma Xi. In 2021, he was awarded the Gips-Schüle Research Prize together with Simon Thiele and Alois Herkommer for his pioneering work on 3D printed microoptics. He was awarded the 2024 Robert-Wichard-Pohl Prize of the German Physical Society for developing 3D printed microoptics. His research interests include Ultrafast Nano-Optics, Plasmonics, Active, Switchable and Chiral Metamaterials, 3D Printed Micro- and Nano-Optics, Medical Micro-Optics, Miniature Endoscopy, Novel mid-IR Ultrafast Laser Sources, Applications in Microscopy, Biology, and Sensing. He has spun out three companies based on his research: NT&C (single particle spectroscopic microscopy), Stuttgart Instruments GmbH (Ultrabroadband tunable fs and ps laser sources from visible to mid-IR), and Printoptix GmbH (3D printed microoptics). Stuttgart Instruments GmbH has been awarded the PRISM Award 2022 at Photonics West and the LASER Innovation Award 2022 at LASER World of Photonics. In 2023, Stuttgart Instruments was granted a finalist award at the Leibinger Prize competition. Printoptix GmbH was awarded the Stuttgart Innovation Prize 2023.

DAS, the distributed acoustic sensor, is a fiber-optic system for distributed sensing of dynamic strain with high fidelity. The DAS interrogator launches an optical probe down to the fiber, then analyzes the Rayleigh backscattering from the fiber to acquire acoustic wave or vibration information around the fiber. In this way, an optical fiber becomes a continuous sensor that can collect vibrations at all positions along tens of even hundreds of km-long optical fiber. Such an amazing technology is particularly suitable for long-range and large-area application in various areas, such as geoscience and geoengineering, oil and gas industry, structural health monitoring, and perimeter security. In this talk, following a brief review on high-performance DAS based on innovative techniques such as pulse-compression and rotated-vector-synthesis, latest developments and prospects on integration and intelligence of DAS are introduced, including the first silicon photonic integrated DAS interrogating chip, which was recently published on OFS-28 (Hamamatsu, Japan, November 2023), and a DAS-MAE self-supervised learning model developed for multiple tasks of compression/reconstruction, blind denoising, unsupervised/semi-supervised event extraction and classification for DAS temporal-spatial data stream..

Zuyuan He received his Ph.D. degree from the University of Tokyo, Japan, and became a Research Associate of the University of Tokyo in 1999. In 2001, he joined CIENA Corporation, Maryland, USA, as a Lead Engineer heading the optical testing and optical process development group. He returned to the University of Tokyo as a Lecturer in 2003, then became an Associate Professor in 2005 and a full Professor in 2010. He is now a Chair Professor at the Department of Electronic Engineering, Shanghai Jiao Tong University, China. His current research interests include optical sensors, optical interconnects, and optical computing. He co-authored about 500 papers in peer-refereed journals and international conferences, and has been awarded about 50 patents from China, Japan, USA, and UK, respectively. Dr. He is an OPTICA Fellow. He has served as TPC members in a variety of international conferences, such as CLEO, OFC, and OFS, and as the General Chair of Asia Communications and Photonics Conference (ACP) 2014 and Asia-Pacific Optical Sensors Conference (APOS) 2016, respectively, and worked as an Associate Editor of IEEE/OSA Journal of Lightwave Technology 2013-2019..

Tbit/s wireless datalinks, hidden object inspection, chemical fingerprint identification, space explorations - these are several of the many terahertz applications that can revolutionize modern world and reshape the way we live in the coming decades. To bring these applications to daily use, there is an urgent need for bright coherent sources to empower terahertz systems. The biggest challenge is to boost terahertz powers and frequency sweeping ranges. Even though this challenge has already been fulfilled long time ago in the nearby electromagnetic spectrum, when it comes to the terahertz regime, either electronic sources suffer from RC and transit-time roll-off at higher frequencies or optical sources require cryogenic environments to maintain efficient stimulated emission at meV-level band gap energies. Electronic sources such as impact ionization avalanche transit-time diodes, Gunn diodes, resonance tunneling diodes, and Schottky multipliers can provide high power, high spectral purity and decent frequency tunability in the lower end of the terahertz frequency range. From the higher end, terahertz quantum cascade lasers (THz QCLs) deliver sub-watt-level coherent radiation with broad frequency tuning. This excellent performance makes THz QCLs a very effective engine of terahertz systems operating at low temperatures. On the other hand, photomixers have the advantages of both worlds, making them ideal when room-temperature, high-stability, and broadly tunable high-power terahertz sources and high-sensitivity terahertz detectors are required. This talk highlights recent transformative advances in terahertz optoelectronics utilizing photomixing for imaging, spectroscopy, and communication.

Mona Jarrahi received her B.S. degree in Electrical Engineering from Sharif University of Technology in 2000 and her M.S. and Ph.D. degrees in Electrical Engineering from Stanford University in 2003 and 2007. She served as a Postdoctoral Scholar at University of California Berkeley from 2007 to 2008. After serving as an Assistant Professor at University of Michigan Ann Arbor, she joined University of California Los Angeles in 2013 where she is currently a Professor and Northrop Grumman Endowed Chair in Electrical and Computer Engineering and the Director of the Terahertz Electronics Laboratory. Prof. Jarrahi has made significant contributions to the development of ultrafast electronic and optoelectronic devices and integrated systems for terahertz, infrared, and millimeter-wave sensing, imaging, computing, and communication systems by utilizing novel materials, nanostructures, and quantum structures as well as innovative plasmonic and optical concepts. The outcomes of her research have appeared in more than 300 publications and 270 invited talks and have received a significant amount of attention from scientific news outlets including Huffington Post, Popular Mechanics, EE Times, and IEEE Spectrum. Her scientific achievements have been recognized by several prestigious awards including the Presidential Early Career Award for Scientists and Engineers (PECASE); Friedrich Wilhelm Bessel Research Award from Alexander von Humboldt Foundation; Moore Inventor Fellowship from the Gordon and Betty Moore Foundation; A F Harvey Engineering Research Prize from the Institution of Engineering and Technology (IET); Kavli Fellowship by the USA National Academy of Sciences (NAS), Grainger Foundation Frontiers of Engineering Award from the USA National Academy of Engineering (NAE); Breakthrough Award from Popular Mechanics Magazine; Research Award from Okawa Foundation; Innovations in Regulatory Science Award from the Burroughs Wellcome Fund; Harold E. Edgerton Award in High-Speed Optics from the International Society for Optics and Photonics (SPIE); Early Career Award in Nanotechnology from the IEEE Nanotechnology Council; Outstanding Young Engineer Award from the IEEE Microwave Theory and Techniques Society; Booker Fellowship from the USA National Committee of the International Union of Radio Science; Lot Shafai Mid-Career Distinguished Achievement Award from the IEEE Antennas and Propagation Society; Early Career Award from the USA National Science Foundation (NSF); Young Investigator Awards from the USA Office of Naval Research (ONR), the Army Research Office (ARO), and the Defense Advanced Research Projects Agency (DARPA); Watanabe Excellence in Research Award from UCLA Henry Samueli School of Engineering and Applied Science; Elizabeth C. Crosby Research Award from the University of Michigan; and Distinguished Alumni Award from Sharif University of Technology. Prof. Jarrahi is a Fellow of the Institute of Electrical and Electronics Engineers (IEEE), Optical Society (OPTICA), International Society for Optics and Photonics (SPIE), American Physical Sosiety (APS), Institute of Physics (IoP), and has served as a distinguished lecturer of IEEE, traveling lecturer of OSA, and visiting lecturer of SPIE societies. .      

This presentation mainly introduces the interaction between 3D nanoprinting and various materials at the atomic scale. Describe the precise and unparalleled manipulation of materials by nanoprinting at the spatial, temporal, and atomic scales. In particular, the application status and broad prospects of optical nanoprinting and two-dimensional photonic integrated devices are introduced in detail. The report will also share the future development directions of ultrafast optical nanoprinting and angstrom material devices, and the major challenges faced. The developed scalable graphene metamaterials show attractive optical and thermal properties. Through patterning with advanced laser nanoprinting technique, functional photonic devices with ultrathin, light weight and flexible nature have been demonstrated promising exciting opportunities for integrated photonics.

Distinguished Professor Baohua Jia is a Fellow of Australian Academy of Technological Sciences and Technologies (FTSE), and Future Fellow at RMIT University, Australia. Before joining RMIT University in 2022, Baohua was a tenured professor at Swinburne University of Technology and Founding Director of Centre for Translational Atomaterials. Professor Jia is a Fellow of Optica (previously known as the Optical Society of America), and a Fellow of the Institute of Materials, Minerals and Mining (IMO3). Since 2019, Prof. Jia has served as a Colleague of Expert for the Australian Research Council. Professor Jia's research focuses on the design and optical characterization of novel nanostructures and nanomaterials, fabrication, and efficient conversion and storage of light energy. As a leading Chief Investigator, Professor Jia received a total of more than $50 million in research funding support. Professor Jia has published more than 300 journal papers with an h-index of 72 (Google Scholar) and developed more than 20 invention patents and patent applications. Based on Professor Jia's outstanding contributions in scientific research, she has won many awards, including the 2017 finalist of the Australian Prime Minister's Science Award, the Vice Chancellor's Industrial Achievement Award in 2011, 2016, and 2018, 2013, Young Science Leader Award, 2012 UNESCO L'Oréal Australia New Zealand Women in Science Award.

X-photonics involves the manipulation and control of X-rays to explore and interact with matter at the atomic and molecular levels, going beyond traditional optical photonics that focuses on the visible and near-visible spectrum. This extension to X-ray wavelengths opens up unprecedented possibilities to probe the internal structures of materials and biological specimens with unparalleled resolution and sensitivity. This field is crucial for advances ranging from medical diagnostics to space exploration. Central to this advancement is the exploration and application of lanthanide-doped optical nanomaterials, which promise to drastically improve image resolution and pave the way for novel applications. The intrinsic qualities of lanthanides in light absorption and emission are instrumental in frequency conversion, essential for transforming light into previously unattainable wavelengths. These breakthroughs are essential for improving imaging techniques, expanding their use in bio-detection, therapeutic solutions, and X-ray scintillation efficiency. Moreover, X-photonics promises to improve assistive technologies, offering innovative solutions to improve the quality of life for individuals with disabilities. Through the lens of X-photonics, this exploration illuminates the relationship between energy harvesting and technological innovation and sheds light on its critical role in the next generation of imaging and assistive devices.

Xiaogang Liu earned his Ph.D. in inorganic chemistry from Northwestern University in 2004. Following this, he spent two years as a postdoctoral researcher in the Department of Materials Science and Engineering at MIT. He joined the Department of Chemistry at the National University of Singapore in 2006 and was promoted to Full Professor in 2017. He holds a joint appointment with the Department of Surgery at the School of Medicine. Among his research interests are the study of energy transfer in lanthanide-doped nanomaterials, the application of optical nanomaterials for neuromodulation and light-field imaging, the development of advanced X-ray imaging scintillators, and the prototyping of electronic tools for assistive technologies. He is an associate editor of Nanoscale, BMEMat, Journal of Luminescence, and has served on the editorial boards of Journal of the Chinese Chemical Society, Journal of Physical Chemistry Letters, Chemistry–An Asian Journal, Science China Materials, Advanced Optical Materials, InfoMat, The Innovation, Nanoscale Horizons, Small Methods, Next Technology, and Nano Letters.

Materials and nanotechnologies are key for many applications in photonics, especially for metasurfaces that are built from sub-wavelength nanostructures – the so-called meta-atoms. In this presentation, I will report on our on-going research effort to develop metasurfaces that utilize hybrid meta-atoms, which combine both high index dielectrics and plasmonic metals. This combination unlocks interesting optical effects that stem from the interaction between electric and magnetic resonances. Indeed, the fundamental resonance of a dielectric structure has a magnetic character, while that of a plasmonic metal has an electric character. The coupling between both resonances occurs through bi-anisotropy and leads to extremely interesting effects, where an electric excitation produces a magnetic response and vice-versa. However, strong bi-anisotropy requires the fabrication of nanostructures with a high aspect ratio, which is very challenging from a technology point of view: indeed, most technologies developed in the cleanroom can only produce two-dimensional, planar, nanostructures. To overcome this limitation, we have developed some original approaches based on ion-etching and reactive ion-etching. They can be used to produce nanostructures with a high aspect ratio to build strongly bi-anisotrope metasurfaces. The combination of electric and magnetic effects leads to very strong optical features that cannot be attained in homogeneous systems. Such features can be used for sensing, to produce strong physical colors, or even in the non-linear regime to develop surprising effects, such as a nonlinear optical diode.

Olivier J.F. Martin studied physics at the Swiss Federal Institute of Technology Lausanne (EPFL) and conducted his PhD at IBM Zurich Research Laboratory, where he studied semiconductor lasers. After a stay at the UC San Diego, he became Assistant Professor at the Swiss Federal Institute of Technology Zurich (ETHZ). In 2003 he was appointed at the EPFL, where he is currently Full Professor of Nanophotonics and Optical Signal Processing. Dr. Martin conducts a comprehensive research that combines the development of numerical techniques for the solution of Maxwell’s equations with advanced nanofabrication and experiments on nanophotonic systems. Applications of his research include optical antennas, metasurfaces, nonlinear optics, optical nano-manipulations, heterogeneous catalysis, security features and optical forces at the nanoscale. Dr. Martin has authored over 300 journal articles and holds several patents and invention disclosures.

Fs laser has features of ultrashort pulse and ultrahigh peak power, and has been widely used in various fields. In this talk, I will introduced the phenomena, mechanisms and applications of fs laser induced microstructures in transparent materials e.g. fs laser induced valence state change, refractive index change, nanograting and nanocrystals. I will focus on the growth and control of bandgap tunable nanocrystals based on fs laser induced space-selective nanoscale phase separation and ion exchange，and the promising applications in next generation Micro-LED, full color holographic display and multi-dimensional optical storage.

Jianrong Qiu is professor and director of the Micro & Nano Photonics, Zhejiang University. He is a fellow of both the American Ceramic Society (ACerS) and the Optical Society of America (Optica), and an academician of the World Academy of Ceramics. He was awarded the 2005 Otto-Schott Research Award (Abbe Fund, Germany), 2007 Academic Award (The Ceramic Society of Japan) and 2016 George W Morey Award (The American Ceramic Society) for outstanding contributions to the field of light interaction with matter. Some of his research achievements were selected as the Top Ten Science Advances in China, and top ten Optics Advances in China,

Specially designed meta-structure components can mass-produce artificial nano-array structures through semiconductor microelectronics fabrication procedures, and can manipulate the phase, polarization, and amplitude of electromagnetic waves. Meta-devices can meet a variety of current urgent needs, such as novel functions, lightweight, small size, higher efficiency, better performance, broadband operation, lower energy consumption, compatibility with semiconductor mass processing technology, etc. This talk reports on the design, manufacturing and novel applications of optical meta-devices, such as achromatic meta-lens, advanced imaging, intelligent sensing, nonlinear generation of vacuum ultraviolet light, medical and biological imaging, 6G communications, tunable meta-structures, high-dimensional quantum light source, etc. We believe that meta-devices have opened up a new avenue for future developments of next-generation devices in fields such as micro-robotic vision, autonomous driving, vehicle sensors, virtual and augmented reality, personal miniature security systems, bio-medical devices, advanced medical care, and quantum information technology, etc.

Din-Ping TSAI is currently Chair Professor of the Department of Electrical Engineering, City University of Hong Kong. He is an elected Fellow of AAAS, APAM, APS, AAIA, COS, EMA, IAE, IEEE, JSAP, NAI, OSA, SPIE, and TPS, respectively. He is author and co-author of 379 SCI papers, 70 book chapters and conference papers, and 39 technical reports and articles. He was granted 69 patents in the USA, Japan, Canada, Germany, etc., for 45 innovations. He was invited as an invited speaker of international conferences more than 340 times (28 Plenary Talks, 62 Keynote Talks). He received more than 40 prestigious recognitions and awards, including “Mozi Award” from International Society for Optics and Photonics (SPIE) in 2018; “Global Highly Cited Researchers,” Web of Science Group (Clarivate Analytics) in 2020 and 2019, respectively; China’s Top 10 Optical Breakthroughs in 2020 and 2018, respectively; “The President Award” from City University of Hong Kong in 2022, etc.