category: Optoelectronics / Photonics

category: IoT, Security & Automotive

Fast Time-Resolved Scanning Tunneling Microscopy (STM) for Nanostructures
By Technical Paper Link - 27 Feb, 2023 - Comments: 0

A new technical paper titled "Externally-triggerable optical pump-probe scanning tunneling microscopy with a time resolution of tens-picosecond" was published by researchers at University of Tsukuba and UNISOKU Co. According to the U. of Tsukaba news article, "OPP STM is an essential method for measuring photo-induced charge carrier dynamics in nanostructures, but requires technical advances... » read more

Technique For Printing Electronic Circuits Onto Curved & Corrugated Surfaces Using Metal Nanowires (NC State)
By Technical Paper Link - 10 Jan, 2023 - Comments: 0

A technical paper titled "Curvilinear soft electronics by micromolding of metal nanowires in capillaries" was published by researchers at North Carolina State University. “We’ve developed a technique that doesn’t require binding agents and that allows us to print on a variety of curvilinear surfaces,” says Yuxuan Liu, first author of the paper and a Ph.D. student at NC State in this ... » read more

Multi-Wavelength, Multimode Communication Scheme For On-Chip and Chip-to-Chip Interconnects
By Technical Paper Link - 02 Jan, 2023 - Comments: 0

A technical paper titled "Multi-dimensional data transmission using inverse-designed silicon photonics and microcombs" was published by researchers at Stanford, Harvard, University of Central Florida, NIST, and others. "Here we demonstrate an integrated multi-dimensional communication scheme that combines wavelength- and mode- multiplexing on a silicon photonic circuit. Using foundry-compati... » read more

Ultrafast Optical Chirality Logic Gates (Aalto University)
By Technical Paper Link - 16 Dec, 2022 - Comments: 0

A technical paper titled "Chirality logic gates" was published by researchers at Aalto University (Finland), National Center for Nanoscience and Technology (Beijing), and University of Cambridge. Abstract (partial) "The ever-growing demand for faster and more efficient data transfer and processing has brought optical computation strategies to the forefront of research in next-generation com... » read more

Chip Sandwich: Electronics Chip & Photonics Chip Co-Optimized To Work Together (CalTech/Univ. of Southampton)
By Technical Paper Link - 01 Dec, 2022 - Comments: 0

A technical paper titled "A 100-Gb/s PAM4 Optical Transmitter in a 3-D-Integrated SiPh-CMOS Platform Using Segmented MOSCAP Modulators" was published by researchers at CalTech and University of Southampton. "The resulting optimized interface between the two chips allows them to transmit 100 gigabits of data per second while producing just 2.4 pico-Joules per transmitted bit. This improves th... » read more

Connecting Quantum Devices With Sound
By Technical Paper Link - 30 Nov, 2022 - Comments: 0

A new technical paper titled "On-chip distribution of quantum information using traveling phonons" was published by researchers at TU Delft, Center for Nanophotonics, AMOLF, and Eindhoven University of Technology. "Physicists from the Gröblacher lab at TU Delft have built a device that can link different quantum devices and qubits to each other. This device, a silicon chip with vibrations t... » read more

3D Structuring Inside GaAs by Ultrafast Laser Inscription
By Technical Paper Link - 28 Nov, 2022 - Comments: 0

A new technical paper titled "Burst mode enabled ultrafast laser inscription inside gallium arsenide" was published by researchers at LP3 Laboratory in France, a joint research unit of Aix-Marseille University (AMU) and CNRS. "We investigate the possibility of using THzrepetition-rate burst mode for ULI inside GaAs, a material that cannot be internally processed with single femtosecond pulse... » read more

Wafer-Scale Variability In Photonic Devices & Effects On Circuits
By Technical Paper Link - 25 Nov, 2022 - Comments: 0

A technical paper titled "Capturing the Effects of Spatial Process Variations in Silicon Photonic Circuits" was published by researchers at Photonics Research Group, Ghent University−IMEC. "We present in this paper a method to extract a granular map of the line width and thickness variation on a silicon photonics wafer. We propose a hierarchical model to separate the layout-dependent and l... » read more

Red MicroLEDs Three Orders of Magnitude Smaller in Surface Area
By Technical Paper Link - 08 Nov, 2022 - Comments: 0

A technical paper titled "N-polar InGaN/GaN nanowires: overcoming the efficiency cliff of red-emitting micro-LEDs" was published by researchers at University of Michigan. The researchers created "red-microLEDs that are nearly three orders of magnitude smaller in surface area than previously reported devices while exhibiting external quantum efficiency of ~1.2%," according to the University o... » read more

Scalable Optical AI Accelerator Based on a Crossbar Architecture
By Technical Paper Link - 08 Nov, 2022 - Comments: 0

A new technical paper titled "Scalable Coherent Optical Crossbar Architecture using PCM for AI Acceleration" was published by researchers at University of Washington. Abstract: "Optical computing has been recently proposed as a new compute paradigm to meet the demands of future AI/ML workloads in datacenters and supercomputers. However, proposed implementations so far suffer from lack of sc... » read more

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