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Rajesh Uppal

Optoelectronic Memory Devices: Overcoming Challenges with 2D Van der Waals Heterostructures

Conventional floating-gate nonvolatile memory devices have powered data storage technologies for decades. However, as data-intensive applications demand higher performance and energy efficiency, these devices face critical limitations in terms of scalability, reliability, and endurance. This has spurred interest in optoelectronic memory (OEM) devices, an emerging class of memory technology that …

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Silicon Photonics: Overcoming Manufacturing Challenges to Meet the Demands of 5G, Data Centers, Supercomputers, Biosensing, and Quantum Optics

Silicon photonics is spearheading a technological revolution, driving progress in fields such as 5G wireless communication, data centers, quantum optics, and beyond. This paradigm-shifting technology offers the potential to merge photonics and electronics on a single platform, utilizing light to transmit data with far less latency, heat, and power consumption …

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Integrated Microwave Photonics (IMWP): Bridging the Gap Between Optics and RF Technologies

In the rapidly evolving landscape of telecommunications and signal processing, the quest for more efficient, faster, and smaller systems is unending. One of the most promising fields emerging in response to these demands is Integrated Microwave Photonics (IMWP). By merging the realms of optics and radio frequency (RF) technologies, IMWP …

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DARPA MOCHA: Revolutionizing Compiler Technology for Heterogeneous Computing Environments

The Defense Advanced Research Projects Agency (DARPA) is known for pushing the boundaries of technology, and its latest initiative, the MOCHA (Machine-learning Optimized Compiler for Heterogeneous Architectures) program, is no exception. Aimed at revolutionizing the way compilers are designed and used, MOCHA seeks to address the growing complexity of modern …

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The Power of Multispectral Targeting Sensor Systems on Drones

In the rapidly evolving field of drone technology, multispectral targeting sensor systems have emerged as a game-changer, significantly enhancing the capabilities of unmanned aerial vehicles (UAVs). These advanced systems enable drones to capture and analyze a broad range of data across multiple wavelengths of light, providing a more detailed and …

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Photon Spintronics: Paving the Way for Integrated Electronic, Optoelectronic, and Magnetoelectronic Devices

Spintronics, also known as spin electronics, magnetoelectronics, or magnetronics, represents a groundbreaking branch of physics that focuses on the storage and transfer of information through electron spins, in addition to the electron charge used in conventional electronics. This approach, which leverages the spin degree of freedom of the carriers, offers …

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DARPA QUAMELEON Project – Unlocking Quantum Materials Engineering with Electromagnetic Fields

Introduction The realm of quantum materials engineering is on the cusp of a revolutionary transformation, thanks to DARPA’s QUAntum Materials Engineering using eLEctrOmagNetic fields (QUAMELEON) project. This initiative aims to harness the power of precision optical tools and engineered light-matter coupling to explore new phases of matter and enhance material …

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Nanomaterials promise Ideal Single photon sources for photonic quantum computing , quantum cryptography and sensors

The world of quantum mechanics holds immense potential, and scientists are constantly seeking ways to harness its power. Enter nanomaterials – tiny, engineered materials with unique properties that are revolutionizing various fields, including quantum technologies. In this blog, we’ll explore how nanomaterials are emerging as ideal single-photon sources, advancing photonic …

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VoIP Over Satellite: Bridging the Gap Between Connectivity and Communication

Introduction Voice over Internet Protocol (VoIP) has revolutionized the way we communicate, enabling voice conversations to be transmitted over the internet rather than traditional telephone lines. While VoIP has become commonplace in many terrestrial networks, its application over satellite links presents unique challenges and opportunities. As satellite technology continues to …

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Climate Change: An Existential Threat and Driver of Global Conflicts

Climate change is not just an environmental concern but one of the most significant existential threats facing humanity today. Its impact extends far beyond rising temperatures and sea levels, profoundly influencing global stability and security. The intricate link between climate change and conflict is increasingly evident, making it a crucial …

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