Esta es nuestra última selección de publicaciones y patentes mundiales en inglés sobre Óptica, entre muchas revistas científicas en línea, clasificadas y centradas en óptica, difracción, resolución óptica, polarización, láser, Kapitsa-Dirac, instrumento óptico y fotón.
Monolithically Integrated GaAs Nanoislands on CMOS-Compatible Si Nanotips Using GS-MBE
Published on 2025-07-12 by Adriana Rodrigues, Anagha Kamath, Hannah-Sophie Illner, Navid Kafi, Oliver Skibitzki, Martin Schmidbauer, Fariba Hatami @MDPI
Abstract: The monolithic integration of III-V semiconductors with silicon (Si) is a critical step toward advancing optoelectronic and photonic devices. In this work, we present GaAs nanoheteroepitaxy (NHE) on Si nanotips using gas-source molecular beam epitaxy (GS-MBE). We discuss the selective growth of fully relaxed GaAs nanoislands on complementary metal oxide semiconductor (CMOS)-compatible Si(001) nanotip wafers. Nanotip wafers were fabricated using a state-of-the-art 0.13 μm SiGe Bipolar [...]
Our summary: Monolithic integration of GaAs nanoislands on Si nanotips using GS-MBE enables advancement of optoelectronic devices. Selective growth of fully relaxed GaAs islands on CMOS-compatible Si(001) nanotip wafers. Investigation focuses on growth conditions influence on morphology, crystalline structure, and defect formation.
GaAs, Nanoislands, GS-MBE, CMOS-compatible
Publication
A Review on Laser-Induced Graphene-Based Electrocatalysts for the Oxygen Reduction Reaction in Electrochemical Energy Storage and Conversion
Published on 2025-07-10 by Giulia Massaglia, Marzia Quaglio @MDPI
Abstract: The increasing demand for efficient and sustainable energy conversion technologies has driven extensive research into alternative electrocatalysts for the oxygen reduction reaction (ORR). Platinum-based catalysts, while highly efficient, suffer from high costs, scarcity, and long-term instability Laser-Induced Graphene (LIG) has recently attracted considerable interest as an effective metal-free electrocatalyst for oxygen reduction reaction (ORR), owing to its remarkable electrical conductivity,[...]
Our summary: A review on the synthesis, properties, and performance of Laser-Induced Graphene-based electrocatalysts for the oxygen reduction reaction. Discussion on heteroatom doping and functionalization techniques. Highlighting challenges and future perspectives for LIG-based ORR catalysts.
Laser-Induced Graphene, Electrocatalysts, Oxygen Reduction Reaction, Energy Storage
Publication
Hybrid silicon quantum dot lasers (hsqdl) with reduced thermal resistance
Patent published on the 2025-07-03 in WO under Ref WO2025144532 by INTEL CORP [US] (Huang Duanni [us], Su Guan-lin [us], Mehta Karan [us], Yerkes Shane [us], Dehghannasiri Razi [us], Dobek Stanley [us], Cramer Marcus [us], Frish Harel [us], Rong Haisheng [us])
Abstract: Hybrid silicon quantum dot laser (HSQDL) structure including an optical waveguide of a first width, a mesa of a second width and a current channel of a third width that is smaller than the second width. In some examples, the third width is only slightly larger than the first width to narrowly confine electrical current directly over the optical waveguide while the third width is significantly larger than the first width to efficiently transport heat away from the optical gain medium. While the c[...]
Our summary: Hybrid silicon quantum dot lasers with reduced thermal resistance have a structure that includes an optical waveguide, mesa, and current channel of varying widths to confine electrical current and efficiently transport heat away from the optical gain medium. Implant processes may be used to increase electrical resistivity in certain regions.
quantum dot lasers, silicon, reduced thermal resistance, optical waveguide
Patent
Carbonaceous material with controlled true density, negative electrode for power storage device, and power storage device
Patent published on the 2025-07-03 in WO under Ref WO2025142598 by KURARAY CO LTD [JP] (Nishimura Naohiro [jp], Hattori Yusaku [jp])
Abstract: The present invention pertains to a carbonaceous material in which: the half-width value of a peak near 1360 cm-1 of a Raman spectrum observed by laser Raman spectroscopy is 200-280 cm-1; the true density obtained by a helium method is 1.30-1.95 g/cc; and the nitrogen element content determined by elemental analysis is 0.5-4.6 mass%.[...]
Our summary: Carbonaceous material with controlled true density, negative electrode for power storage device, and power storage device. The present invention pertains to a carbonaceous material in which: the half-width value of a peak near 1360 cm-1 of a Raman spectrum observed by laser Raman spectroscopy is 200-280 cm-1; the true density obtained by a helium method is 1.30-1.95 g/cc; and the nitrogen element content determined by elemental analysis is 0.5-4.6 mass%.
carbonaceous material, true density, negative electrode, power storage device
Patent
Molybdenum-containing carbonaceous material, negative electrode for power storage device, and power storage device
Patent published on the 2025-07-03 in WO under Ref WO2025142600 by KURARAY CO LTD [JP] (Nishimura Naohiro [jp], Hattori Yusaku [jp])
Abstract: The present invention relates to a carbonaceous material for which the value of the half-value width of the peak in the vicinity of 1360 cm-1 in the Raman spectrum observed by laser Raman spectroscopy is 200-280 cm-1, and for which the molybdenum element content as determined by ICP emission spectroscopy is 0.5-7.5 mass%.[...]
Our summary: Molybdenum-containing carbonaceous material with specific Raman spectrum peak width and molybdenum content for negative electrode in power storage device.
molybdenum, carbonaceous material, negative electrode, power storage device
Patent
Conjugated inter-polyelectrolyte complexes with exciton transfer
Patent published on the 2025-06-26 in WO under Ref WO2025136964 by RICHARDS RACHEL [US] (Ayzner Alexander [us], Richards Rachel [us])
Abstract: Presented are conjugated polyelectrolyte complexes including an electronic energy transfer acceptor conjugated polyelectrolyte polymer and an electronic energy transfer donor conjugated polyelectrolyte copolymer. The electronic energy transfer acceptor conjugated polyelectrolyte polymer and the electronic energy transfer donor conjugated polyelectrolyte copolymer can be oppositely charged. The conjugated polyelectrolyte complexes can be applied to convert photon energy into another form of energ[...]
Our summary: Conjugated inter-polyelectrolyte complexes with exciton transfer, including an energy transfer acceptor and donor polyelectrolyte polymer, can convert photon energy into another form of energy.
polyelectrolyte, complexes, exciton transfer, energy transfer
Patent
Distributed displacement sensing phase demodulation method and apparatus, and device
Patent published on the 2025-06-12 in WO under Ref WO2025118713 by BGP INC CHINA NAT PETROLEUM CORPORATION [CN] (Li Yanpeng [cn], Zhang Shaohua [cn])
Abstract: A distributed displacement sensing phase demodulation method, comprising: determining an IQ demodulation initial phase and an IQ signal amplitude on the basis of an IQ signal (S101); performing a phase decoupling operation on the IQ demodulation initial phase, and sequentially subtracting from the IQ demodulation initial phase an initial phase of an optical fiber sensing signal sensing position, an initial phase of a laser pulse source and an accumulated phase along paths in a transmission proce[...]
Our summary: Distributed displacement sensing phase demodulation method, including determining IQ demodulation initial phase and signal amplitude, performing phase decoupling operation, unwinding processing, calculating displacement sensing data, eliminating coherent fading noise, and transposing data for final phase-demodulated displacement sensing data.
phase demodulation, displacement sensing, coherent fading, IQ demodulation
Patent
Ocular photo-bio-stimulation optics
Patent published on the 2025-03-13 in WO under Ref WO2025054569 by NEURORAYS LLC [US] (Blum Ronald [us], Broach Anita [us], Loeb Jack [us])
Abstract: A device providing ocular photo-bio-stimulation therapy, a biological technique to control or influence the activity of neurons or other cell types in, on or about the eye with light. As used herein ocular photo-bio-stimulation is an umbrella category of which photobiomodulation, optogenetics and phototherapy are forms thereof. The current invention relates, in part, to photobiomodulation therapy, which includes the utilization of nonionizing electromagnetic energy to trigger photochemical chang[...]
Our summary: Device providing ocular photo-bio-stimulation therapy using light to control neuron activity. Umbrella category including photobiomodulation, optogenetics, and phototherapy. Utilizes nonionizing electromagnetic energy for cellular changes.
ocular, photo-bio-stimulation, optics, therapy
Patent
