Aktuelle Publikationen

Hardly any technology has spread as publicly as additive manufacturing. 3D printers are now found both in the home and in industrial production. Numerous examples illustrate the development of 3D printing techniques for chemical laboratories....

In deutschen Krankenhäusern werden zunehmend KI-Systeme entwickelt und eingeführt, auch aufgrund steigenden Kosten- und Veränderungsdrucks. Für Beschäftigte ist diese Transformation häufig mit zusätzlichem Arbeitsaufwand und Stress verbunden, da...

The last years have seen an acceleration in the development and uptake of artificial intelligence (AI) systems by “early adopter” hospitals, caught between the pressures to “perform” and “transform” in a struggling health care system. This...

The “black box” characteristic of AI models has received widespread attention from scientists. Explainable artificial intelligence (XAI) methods and uncertainty estimation of AI models are two ways to open the “black box”. However, little...

„A room-temperature 3D-stacked flash LiDAR sensor is presented for the short-wave infrared (SWIR). The 96×96 InGaAs-InP SPAD array in the top tier is biased by a circuit at the bottom tier. Intensity images and depth maps are shown both indoors...

We present the first fully packaged 16×16 Benes optical switch based on 3D photonic integration in HHI’s PolyBoard platform and demonstrate its evaluation at system-level in a 25 Gb/s full-duplex optical link. Stable throughput was maintained...

We introduce a novel ISAC beamforming method enabling joint MIMO radar sensing and multi-user MIMO communication. By leveraging a matrix nearness formulation and an efficient solver, our approach drastically reduces computation, avoiding costly...

The XR4Human Code of Conduct sets forth the ethical obligations for everyone involved in technological innovation and governance of immersive or extended reality (XR) technologies.

The degenerate modes of a few-mode fiber retain entanglement and allow for distribution over 50-km of single-mode fibers, paving the way for future research towards multi-port bidirectional beam splitters with a consistent coupling ratio across...

In this work, we investigate the effectiveness of LPM in detecting physical-layer attacks. A detailed simulative analysis is conducted for fiber tapping, addressing aspects such as monitoring implementation, security vulnerabilities, and...

We present a qubit-based clock drift correction method with low computational requirements, that demonstrates a performance equal to a clock drift correction via a dedicated clock channel. Our method enables stable long-term operation as well as...

Live rerouting of quantum key distribution links poses new synchronization challenges. We demonstrate the seamless handling of multi-minute channel interruptions and fiber length changes exceeding 100 km during live system operation and over...

A catalytic plate reactor derived from the design of conventional plate heat exchangers was used for the continuous and dynamic dehydrogenation of perhydro benzyltoluene, a LOHC. The surface of heat exchanger plates has been catalytically...

The predictive capabilities of Deep Neural Networks (DNNs) are well-established, yet the underlying mechanisms driving these predictions often remain opaque. The advent of Explainable Artificial Intelligence (XAI) has introduced novel...

This work presents the first study of a machine learning-based quality-of-transmission (QoT) estimator using synthetic and experimental datasets from four different organizations, including live network data. It investigates the feasibility of a...

This paper presents an LLM-based mediator for disaggregated optical networks, designed to address inconsistencies in TAPI interpretation and generation. By integrating TAPI-YANG models, shared TAPI context, and advanced prompting, it enables a...

This paper proposes Adaptive S-RISNet, a scalable RIS configuration framework that leverages statistical CSI and change-point detection to update phase shifts only when necessary. The method achieves near-optimal performance while drastically...

We demonstrate a point-to-point optical wireless communication link for fixed wireless access scenarios using a multiaperture VCSEL. At 5 meters distance, a record net data rate of 67.8 Gbit/s is reached after LDPC FEC.

Explore how 28 and 160 GHz radio channels really behave in an industrial-style open office. Using angle-resolved measurements at 135 positions, this paper extracts path loss, delay and angular spreads, validates 3GPP models, and quantifies...

Beam-steered channel measurements were analyzed and evaluated on the basis of identified beam pair realizations regarding MIMO capabilities, macro-diversity gains and blockage effects for a multi-transmitter industrial sub-terahertz communication...

For the first time, we demonstrate LiFi transmission with a net data rate of 11.5 Gbit/s using a transmitter with an optical power of 660 mW. Our results pave the way towards next-generation LiFi systems based on high-power VCSEL-arrays.

We present the first silicon nitride microring aptasensor for detecting the cancer biomarker uP! A on a photonic integrated chip. Combining high optical sensitivity with aptamer-based selectivity, the sensor distinguishes uPA levels and is...

Accurate and reliable gesture recognition is a central problem in human-computer interaction (HCI). Many applications that make use of gesture recognition call for mobile devices with reduced power consumption, weight and form factors. Recent...

We present a microwave photonic RF comb generator based on a quartz-stabilized, ultra-low phase noise fs-pulse laser in combination with high-speed RF waveguide coupled photodetectors. A generated microwave tone at 270 GHz obtains a low phase...

This Comment analyzes a global online landslide classification challenge to examine whether AI competitions can help participants engage with international standards. The results show that while technical innovation was strong, awareness of...

This paper explores a WR6.5 rotary joint based on two 3D-printed mode transducers. Tests from 140 to 170 GHz show about 2 dB of insertion loss across a 16 GHz usable band (145-161 GHz) and less than 15 degree of phase variation, validating 3D...

A hybrid analog beamforming at D-band is demonstrated by integration between an antenna array and a dielectric lens. The beam is collimated on one plane by the antenna array, and on the other by the elliptical lens profile. The antenna element is...

Experience next-generation reconfigurable intelligent surfaces with a novel dual-polarized 2-bit RIS unit cell offering exceptional 55 dB cross-polarization isolation and 400 MHz bandwidth at 15 GHz. Featuring varactor-loaded bowtie elements and...

We make a deep dive into the fabrication and testing of a photonic reservoir with digital readout. The developed neural network was tested for the identification of modulation formats at 32 Gbaud transmission rates, where it achieved a near-100%...

In this paper, we present an experimental investigation of two distinct THz transmitter architectures. While Terahertz (THz) wireless communication is key for 6G networks, a systematic performance comparison between different photonic-generated...