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quantum dots News
Near-Perfect Entangled Photons Generated from Quantum Dot Sources
WATERLOO, Ontario, March 28, 2024 — Researchers at the University of Waterloo's Institute for Quantum Computing (IQC) have developed a method to efficiently produce nearly perfect entangled photon pairs from quantum dot sources, paving the way for secure quantum communications. “The combination of a high degree of entanglement and high efficiency is needed for exciting applications such as quantum key distribution or quantum repeaters, which are envisioned to extend the distance of secure quantum communication to a
Traceable Standards Could Speed Development of Quantum Technologies
GAITHERSBURG, Md., March 26, 2024 — Devices that capture light from quantum dots, like chip-scale lasers and optical amplifiers, have made their way from the lab to the commercial market. The transition for newer quantum dot-based devices has been slower due to the extreme level of...
Quintessent Closes $11.5M Seed Round
SANTA BARBARA, Calif., March. 18, 2024 — Quintessent, a heterogeneous silicon photonics and quantum dot laser technology company, has closed on just over $11.5 million in an oversubscribed seed funding round led by Osage University Partners along with M Ventures, Sierra Ventures, Foothill...
Method Creates Quantum Dots for CMOS SWIR Image Sensors
BARCELONA, Spain, Jan. 9, 2024 — ICFO and Qurv researchers have fabricated a new high-performance shortwave infrared (SWIR) image sensor based on non-toxic colloidal quantum dots (CQD). In their study published in Nature Photonics, they report on a new method for synthesizing...
Nobel Prize in Chemistry Recognizes Quantum Dot Pioneers
STOCKHOLM, Oct. 4, 2023 — Moungi Bawendi, Louis Brus, and Alexei Ekimov have been awarded the 2023 Nobel Prize in chemistry for the discovery and development of quantum dots, which are nanoparticles small enough that their size determines their properties. These discoveries...
Shoei Chemical Acquires Quantum Dot Business from Nanosys
TOKYO, Sept. 11, 2023 — Advanced materials manufacturer Shoei Chemical Inc., together with its North American subsidiary, Shoei Electronic Materials, has completed a definitive asset purchase agreement with Nanosys to acquire substantially all the assets associated with...
Caelux, UbiQD Advance Solar Technology Pursuits: Week in Brief: 08/18/23
PASADENA, Calif., Aug. 18, 2023 — Perovskite technology developer Caelux closed a $12 million series A3 funding round. The company’s series A total of $24 million will be allocated to support its factory ramp, R&D, and product launch. The Caltech spinout is building a...
Edmund Opens Florida Laser Optics Center: Week in Brief: 8/11/23
BARRINGTON, N.J., Aug. 11, 2023 — Edmund Optics established a 34,000-sq-ft laser optics center in Oldsmar, Fla. The center is dedicated to manufacturing optical components with high laser damage thresholds from the ultraviolet to the far infrared, and it expands Edmund’s laser...
Quantum-Dot Laser Elevates Efficacy of Frequency Combs for PICs
SANTA BARBARA, Calif., Aug. 1, 2023 — University of California, Santa Barbara (UCSB) researchers led by John Bowers have developed a quantum-dot (QD) mode-locked laser that allows amplitude-modulated (AM) and frequency-modulated (FM) combs to be generated independently from the same...
Quantum-Confined Mediums Scrutinized for Narrow Linewidth Lasing
THUWAL, Saudi Arabia, July 24, 2023 — On-chip laser diodes based on quantum dot (QD) and quantum well (QW) semiconductor materials are strong candidates for applications that rely on stable laser emissions with narrow linewidth. Examples include lidar, remote sensing, and coherent...
Novel Hybrid Material Facilitates Photon Upconversion
RIVERSIDE, Calif., June 26, 2023 — University of California, Riverside (UCR) researchers have designed a composite material that offers powerful photon upconversion capabilities and that could support a range of light-driven applications as a result. The composite is made from...
Light from Electrically Driven QDs Shines on Silicon Photonics
LOS ALAMOS, N.M., May 11, 2023 — Scientists at Los Alamos National Laboratory (LANL) demonstrated amplified spontaneous emission (ASE) from electrically pumped colloidal quantum dots (CQDs). The CQD-based lasing devices, developed after many years of work by the LANL team, use...
Mojo Vision Raises $22.4M to Bring Micro-LED Tech to Market
SARATOGA, Calif., April 6, 2022 — Mojo Vision, a Silicon Valley-based developer of micro-LED technology, has raised $22.4 million in a series A investment round to propel the development and commercialization of its micro-LED display technology for consumer, enterprise, and...
Sound Waves Enable Single-Photon Control at High Speed
MÜNSTER, Germany, Dec. 1, 2022 — Light and sound are foundational to modern communication technology. Glass fibers — with laser light— form the bedrock of the internet. Nanoscale sound waves on chips serve to process signals at gigahertz frequencies for wireless...
New Majority Stake in CILAS; ColdQuanta Continues Growth: Week in Brief: 11/04/22
PARIS, Nov. 4, 2022 — Safran Electronics & Defense and MBDA completed the acquisition of ArianeGroup’s 63% majority stake in CILAS, a French company specializing in lasers for military applications. The acquisition was carried out through a joint company...
Avicena Acquires Micro-LED Fab, Engineering Team from Nanosys
MOUNTAIN VIEW, Calif., Oct. 25, 2022 — Avicena, a manufacturer of high-performance microLED-based chip-to-chip interconnects, has acquired a micro-LED fabrication facility and associated engineering team from quantum dot technology company Nanosys. The acquisition enhances...
Tiny Quantum Dot Sensors Solve Big IR Application Problems
Oct 4, 2022 — As a second quantum revolution begins, many mysteries remain in the quantum realm. Perhaps this is unsurprising given the notoriously confounding properties of this new frontier. However, as time passes, it seems increasingly likely that the...
Microarray Formation Maximizes Quantum Dot Color Conversion
BEIJING, June 16, 2022 — To enhance the color conversion process of quantum dots for use in LEDs, micro-LEDS, near-field displays, and other devices, researchers from Beijing Institute of Technology have developed perovskite quantum dot (PQD) microarrays. The assembly...
Quantum Dot-based Sensor Captures More Light in Less Space
SEOUL, South Korea, Feb. 17, 2022 — Researchers from Chung-Ang University introduced a photodetector integrated into a dense sensor array for high-resolution multispectral (color) imaging. The technology uses quantum dots to overcome the space-consuming design of current sensors. In...
Extremely Bright Quantum Emitter Self-Heals
HSINCHU, Taiwan, June 10, 2021 — A new approach to synthesizing quantum dots has significantly increased their use value, according to members of an international research collaboration. The method, called spray-synthesis, was developed jointly by professor Hao-Wu Lin and associate...
Fluorescence Microscopy Technique Images Brain at High Resolution
WASHINGTON, D.C., June 8, 2021 — A noninvasive brain imaging technique developed by researchers at ETH Zurich and the University of Zurich works in the near-infrared (NIR) spectrum to enable superresolution deep-tissue fluorescence microscopy at four times the depth limit imposed...
Study of Perovskites Uncovers New State of Matter
MONTREAL, June 1, 2021 — McGill University researchers set out to uncover the secrets of perovskite’s ability to act as a semiconductor, even with structural defects. In doing so, they have discovered what amounts to a new state of matter. Perovskites have garnered...
Atomic Lattice Excitation Yields Understanding of Quantum Dots’ Limits
MENLO PARK, Calif., March 29, 2021 — At low energy levels, quantum dots are able to absorb light and convert it to a different color at nearly 100% efficiency. At higher excitation energies required for brighter screens and other technologies, the level of efficiency drops...
Scientists Follow the Dots to Quantum Optical Circuits
LOS ANGELES, Feb. 10, 2021 — Researchers at the University of Southern California (USC) developed a method that emits uniform single photons from precisely arranged quantum dots. The advancement benefits from an existing method for intentionally arranging quantum dots that USC...
Extra Level Helps Convert Light Energy into Surface Waves on Graphene with Increased Efficiency
MOSCOW, Nov. 17, 2020 — Collaborating physicists from two Russian universities have successfully converted light energy into surface waves on graphene at nearly 90% efficiency. A so-called laser-like energy conversion process with collective resonances, and semiconductor...
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April 2024
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