Articles tagged with Laser Physics
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
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Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
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Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
Scientists at JILA have successfully cooled a gas of potassium atoms to temperatures near absolute zero, creating a Fermi degenerate gas. This achievement demonstrates the behavior of fermions, which are essential building blocks of matter, and could lead to breakthroughs in atomic clock technology and electronic devices.
Temple University physicist Zameer Hasan is working to increase the storage capacity of compact discs by using lasers to distinguish between different colors, allowing for a billion-fold increase in data storage. His research focuses on creating materials that can withstand high temperatures and improve the speed of laser reading.
The Hertz Foundation has awarded a $1 million endowment to establish an endowed professorship at UC Davis in recognition of Edward Teller's contributions to physics. Earnings from the endowment will support the chair's teaching, research, and administrative work.
Physicists have successfully created an atom laser from a Bose-Einstein condensate using light manipulation, building on previous research funded by the Office of Naval Research. The NIST atom laser produces a highly directional beam with improved collimation compared to earlier experiments.
Researchers have created a laser without mirrors using powdered layers of zinc oxide and gallium nitride. The device amplifies light using a disordered structure, creating feedback to form lasing cavities and producing blue laser light.
The American Physical Society is celebrating its 100th anniversary at a giant meeting in Atlanta, Georgia, from March 20-26, 1999. Over 7,000 physicists and experts will attend the event, which includes keynotes from national political figures and Nobel laureates.
The University at Buffalo is hosting a Symposium on Nanoscale Science and Technology, featuring Nobel Laureate J.C. Polanyi and experts in nanostructures and nanoparticles. Researchers will discuss their work on molecular self-assembly approaches, metallic nanoparticles, and new devices for data storage and optical communication.
A new computing technique uses chaotic elements to 'evolve' answers, offering an alternative to traditional digital computers. The system has demonstrated handling various operations, including addition, multiplication, and Boolean logic.
Researchers solved Einstein's three-dimensional equations for gravitational waves using a CRAY T3E-136 system and ImmersaDesk virtual reality systems. The demonstration showcased an 8,000-kilometer transatlantic connection, with data transmitted at millions of bits per second.
Researchers develop a new trap to confine Bose-Einstein condensates using light, enabling the manipulation of ultracold atoms. The team observes a Feshbach resonance for the first time in ultracold atoms, opening up new possibilities for studying and controlling this form of matter.
A new method developed at U of T directly dates individual grains of glaucony minerals, yielding ages scattered over millions of years. The study reveals variable sea levels and provides a way to follow their fluctuations, with applications in oil exploration industry.
The National Science Foundation has awarded Williams College a $143,912 grant to equip a new laser facility, bringing together four research labs and a student workspace. The new equipment will enable researchers to measure optical wavelengths accurately and support a broad range of research in atomic, molecular, and optical physics.
Scientists successfully converted energy in the form of light into matter, creating electrons and positrons. The experiment used high-energy electrons and photons to produce an incredible amount of power in a tiny area, marking a major breakthrough in understanding quantum electrodynamics.
Cornell researchers have developed a new technique to measure serotonin concentration in live cells, using pulsed lasers for excitation. This method allows for the visualization of serotonin secretory granules in real-time without damaging the cell or requiring external fluorescent markers.
Researchers at ORNL have developed a technique that combines laser light with pharmaceutical agents to selectively kill breast cancer cells. The laser delivers photons to the target tissue, activating an ingested agent that disables DNA replication and halts tumor growth.
Duke University's OK-4 optical klystron FEL, developed in Russia, has begun operating at the institution, producing intense beams of gamma rays and ultraviolet laser light. The device is expected to be used for medical research and answering questions in nuclear physics.
Scientists worldwide are building equipment to replicate the discovery of a new state of matter, known as the Bose-Einstein condensate. The condensate's properties have been studied extensively, with researchers making breakthroughs in understanding its behavior at extremely low temperatures.