ALBA Synchrotron’s Post

https://lnkd.in/eWDimkhi A quantum-mathematical model to state single photon (electron) double slit experiment, Fraunhofer and Fresnel diffractions

𝐀 𝐐𝐮𝐚𝐧𝐭𝐮𝐦 𝐂𝐡𝐞𝐦𝐢𝐜𝐚𝐥 𝐚𝐧𝐝 𝐍𝐨𝐧𝐥𝐢𝐧𝐞𝐚𝐫 𝐎𝐩𝐭𝐢𝐜𝐚𝐥 𝐈𝐧𝐯𝐞𝐬𝐭𝐢𝐠𝐚𝐭𝐢𝐨𝐧 𝐨𝐧 𝐋-𝐓𝐫𝐲𝐩𝐭𝐨𝐩𝐡𝐚𝐧 𝐇𝐲𝐝𝐫𝐨𝐜𝐡𝐥𝐨𝐫𝐢𝐝𝐞 𝐒𝐢𝐧𝐠𝐥𝐞 𝐂𝐫𝐲𝐬𝐭𝐚𝐥𝐬 𝐟𝐨𝐫 𝐎𝐩𝐭𝐨𝐞𝐥𝐞𝐜𝐭𝐫𝐨𝐧𝐢𝐜 𝐃𝐞𝐯𝐢𝐜𝐞 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 In this study, a semi-organic crystal of L-tryptophan hydrochloride (LTHC) has been synthesized and quality crystals has been grown using a slow evaporation technique. Singe crystal XRD confirms the monoclinic system with space group P21. UV optical studies displays the transmittance in the entire visible region. The Mulliken charge distribution and MEP mapping show significant charge transfer due to nucleophilic and electrophilic moieties. The molecule's chemical reactivity was examined using HOMO-LUMO and MESP investigations. The crystal's nonlinear properties were studied using the Kurtz-Perry method. These findings suggest that LTHC crystals may have potential applications in the field of nonlinear optics. #Semiorganic #Singlecrystal #Optical #SHG #Nonlinear #IRJMT #ARA #Research #MaterialScience #Innovation #Journal #Publication #Scopus #OpenAcess #Environment #Engineering #Scientific #Science #Study #Rearchanddevelopment Asian Research Association Read more https://lnkd.in/g5ucWq3b For more information, please read our recent articles at https://lnkd.in/gqaMY-sW

We utilize a dielectric metasurface to excite quasi-bound states in the continuum for enhancing photocatalysis. One key advantage is that the metasurface is virtually lossless and all the absorbed electromagnetic energy is funneled into the catalysts to accelerate the reaction rate. The approach opens to novel nanophotonic phenomena for manipulating chemical reactions. Great collaboration with Halas and Nordlander groups. See the details in the just published Nano Letters paper: https://lnkd.in/gqxdh2cJ Thanks to Lin Yuan, Yage Zhao, Andrea Toma, Vincenzo Aglieri, Burak Gerislioglu, PhD, Yigao Yuan, Minghe Lou, Ogundare Adebola, Peter Nordlander, Naomi Halas Rice University Electrical and Computer Engineering

Very interesting paper done by imec team sharing their breakthrough in GaN-on-Si power device fabrication onto 200mm wafers reaching 1200V rated transistor using a lateral HEMT structure with pGaN gate. The results have been achieved using QST wafers that from my current understanding seems quite important to reach high breakdown voltages having high buffer thickness mantaining a controlled wafer bow.

Post on Series Resonant Circuits: https://lnkd.in/g3Q2j2bC

I would like to share my latest paper published recently in ACS Photonics in collaboration with Prof. Jacob Khurgin from The Johns Hopkins University about on-chip Schottky photodetectors for Photonic Integrated Circuits (PICs). Silicon photonics has many attractive features but faces a major issue: inefficient and slow photodetection in the telecom range. New metal-semiconductor Schottky photodetectors based on intraband absorption address this problem, but their efficiency remains low. We suggest that by creating a junction between silicon and a transparent oxide with appropriate doping, which results in a real permittivity close to zero (known as the epsilon near zero or ENZ regime), detection efficiency could increase by more than 10-fold. Using Aluminum Zinc Oxide (AZO) as an example, we design an optimized AZO/Si slot photonic waveguide detector that could potentially reach an efficiency of several tens of percent, in contrast to a few percent for a metal/Si Schottky detector. This increase is primarily due to the lower density of states in AZO compared to metal, along with superior coupling efficiency and strong absorption within a 10 nm slot. We focus in this paper on ZnO-based compound as it is biocompatible, biodegradable, biosecure, cheap, CMOS-compatible (as other TCO materials) and is already considered for sensing, optoelectronic and storage applications. However, the family of transparent conductive oxides (TCOs) is very broad, thus, they can operate in a wide range of wavelengths from UV to MIR what opens new possibilities for PICs in NIR and MIR. https://lnkd.in/dwTQ-DhD

Miniaturized light sources at telecommunication wavelengths are essential components for on-chip optical communication systems. In this paper, researchers report the growth and fabrication of highly uniform p-i-n core-shell InGaAs/InP single quantum well (QW) nanowire array light emitting diodes (LEDs) with multi-wavelength and high-speed operations. As a result of simultaneous contributions from both axial and radial QWs, broadband electroluminescence emission with a linewidth of 286 nm is achieved with a peak power of ~17 μW. Full-length paper available at https://lnkd.in/gX687AXB High-speed multiwavelength InGaAs/InP quantum well nanowire array micro-LEDs for next generation optical communications

Explore a thorough analysis of the structural and optical characteristics of YVO4:Eu3 red phosphor, shedding light on its potential applications in advanced lighting and display technologies. #MaterialsScience #Optoelectronics #PhosphorResearch

"Recently, the research team led by Prof. Du Haifeng from the High Magnetic Field laboratory at Hefei Institutes of Physical Science of the Chinese Academy of Sciences achieved stable magnetic bundles at room temperature without the need for any external magnetic field. Their work is published in Nature Communications. Topological magnetic structures are a type of spin arrangement with nontrivial topological properties. These structures hold promise as the next-generation data carriers and could overcome the limitations of traditional magnetic storage technologies in spintronics. In previous research, the team proposed a method for inducing magnetic skyrmion bundles in a chiral helimagnetic material called FeGe. However, achieving stable magnetic bundles at room temperature and without an external magnetic field remained a significant challenge for practical applications in spintronics." #spintronics #datamemory #roomtemperature #stablemagneticbundles