Articles tagged with Wavelengths
Astronomers have observed features of nearby galaxy M33 using infrared pictures from NASA's Spitzer Space Telescope, revealing details hidden to the human eye. The galaxy is a gigantic laboratory where dust is created in novae and supernovae, being distributed in giant star winds and reborn in new stars.
Researchers used immersion lithography to create circuit lines and features at least as small as 45nm using 193nm equipment. This breakthrough allows manufacturers to create more powerful chips while extending the life of their current fabrication equipment.
The SORCE satellite has tracked exceptionally high levels of solar activity, including the third most powerful solar flare ever observed in X-rays. This comprehensive dataset will help scientists better understand the mechanisms of solar spectral-irradiance variability and their possible climatic impacts.
A recent study by Jefferson and Brigham and Women's researchers has found that blue light plays a vital role in regulating the body's internal clock. The discovery highlights the importance of blue wavelengths in controlling melatonin production, which is essential for maintaining circadian rhythms.
Researchers at UC Santa Barbara develop world's first tunable photon copier on a chip, enabling efficient data transmission in all-optical networks. The device integrates laser and wavelength converter components, improving signal quality and paving the way for widespread adoption.
Researchers at University of Toronto have developed a material that converts electrical current into photons, holding promise for directly linking computers with networks transmitting information in light. The study demonstrates the conversion of electrical current into light using a promising class of nanocrystals, paving the way for ...
Researchers at Rice University have precisely identified the optical signatures of 33 'species' of light-emitting carbon nanotubes, revolutionizing the field of nanotechnology. This breakthrough enables chemists to measure nanotubes using simple and faster methods, accelerating research in this rapidly evolving field.
Researchers at UC Davis are developing optical CDMA devices that encode information across a spread of wavelengths for fast and secure telecommunications. This technology has the potential to improve network security and provide faster connections.
The University of California, Santa Barbara researchers are tackling the challenge of integrating all-optical wavelength converter technology on a single chip. They aim to develop an approach that can simultaneously handle digital and analog signals, paving the way for future photonics system integration.
Researchers at Rice University have discovered that carbon nanotubes can fluoresce in the near-infrared spectrum, which could lead to the development of inexpensive and simple diagnostic tests for diseases. This technology has the potential to target specific targets within the body, such as tumor cells or inflamed tissues.
Researchers have developed a tungsten photonic lattice that can convert most of the wasted infrared energy into visible light, increasing the efficiency of incandescent bulbs from 5% to over 60%. This innovation has the potential to significantly reduce energy consumption and environmental damage caused by inefficient lighting.
Scientists have found organic compounds in deep space, a discovery that supports the hypothesis of complex organic compounds causing the Unidentified Infrared Bands. The study used a special laser to measure the spectrum of polyaromatic hydrocarbons in deep space.
Hydrogel nanoparticles provide a foundation for creating self-assembled periodic structures that can transmit specific wavelengths of light. By controlling the de-swelling process, the researchers can tune the colors to one-nanometer steps over a wavelength range of more than 200 nanometers.
A UB team has demonstrated a breakthrough in three-photon pumped frequency upconversion, producing fluorescent emissions with higher energy than the laser's pumping photon. This process enables efficient light production for applications such as optical imaging, bioimaging, diagnostics and photodynamic therapy of deep tissue tumors.
Researchers used data from thousands of galaxies to assess theories of star formation and stellar population dynamics. The cosmic spectrum shows a predominantly greenish hue due to the large numbers of old red stars and young blue stars in the universe.
The FEL center is exploring applications in laser surgery, producing monochromatic X-rays for sharper images, and characterizing proteins through heat-induced release from gels. Researchers have successfully performed human surgeries using the FEL beam.
Researchers at Thomas Jefferson University have identified a novel photopigment in the human eye that regulates melatonin production, which plays a vital role in the body's circadian rhythms. Exposure to blue light has been found to be most effective in controlling melatonin levels.
Researchers developed an ultra-fast optical switch that can reformat information at speeds unmatched by current devices. The switch uses off-the-shelf components and operates in a billionth of a second, allowing for fast wavelength conversion and customization of pulse lengths.
Researchers at Virginia Tech are using in-situ infrared spectroscopy to monitor the molecular structure of materials during chip manufacture, enabling the creation of smaller and more complex components. This new level of quality assurance is crucial for the development of next-generation computer chips.
Astronomers predict that upcoming improvements in radio wave observation techniques could permit seeing a circular shadow at the heart of the galaxy, revealing the first image of a black hole's event horizon. This would be a final step in confirming the existence of black holes as cosmic reality.
Researchers discovered rare molecular interactions between skin molecules and UV-A light that can cause photoaging. The study found that UV-A wavelengths lead to weak molecular transitions, raising oxygen molecule energy levels to a damaging state.
A team of astronomers detected a population of distant, dusty galaxies forming stars at rates 10-100 times higher than most optical sources. The discovery suggests that much of the star formation in the distant Universe may be hidden to visual observations, requiring a combination of both optical and submillimeter observations.
Researchers at Sandia National Laboratories have created a new type of photonic crystal that can bend microwaves around tight corners with nearly 100% transmission efficiency. This breakthrough has the potential to improve microwave communications and enable more efficient long-distance optical communications.
The MSX satellite has released the highest resolution mid-infrared maps of the Galactic Center, providing insights into the thermal radiation from cool dust and HII regions. The images reveal hot objects like stars as blue and cool objects as red, offering a new understanding of the galaxy's structure and composition.