Search Results for: uv light

Nitride Semiconductors: Diode Lasers for Visible and UV Light
Nitride Semiconductors: Diode Lasers for Visible and UV Light
Semiconductor lasers apart from silicon itself have dominated the LED industry because of their better efficiency in light emission. However, at first, most of such devices emitted light in the red to ...
Electromagnetic Spectrum: From XUV to Microwaves
Electromagnetic Spectrum: From XUV to Microwaves
Welcome to the intricate and expansive universe of the electromagnetic spectrum, a fundamental yet often overlooked cornerstone of modern science and technology. Spanning from the extreme ultraviolet (XUV) ...
UV Disinfecting and Killing Covid-19
UV Disinfecting and Killing Covid-19
You have probably heard of UV disinfecting and have also probably seen some commercial products readily available in the market. But do you know how they work? How they produce the UV rays and whether they ...
UV-DOAS Spectroscopy For Atmospheric Monitoring
UV-DOAS Spectroscopy For Atmospheric Monitoring
Ultraviolet Doppler Optical Absorption Spectroscopy (UV-DOAS) is a long distance measurement technique used for detecting chemicals in the atmosphere. This technology is important in our modern world where ...
Counterfeit Currency Detection: UV and Magnetic Sensors
Counterfeit Currency Detection: UV and Magnetic Sensors
Introduction Counterfeit currency has plagued the United States economy since before the time of our founding fathers. This article will give a brief history on the origins of fraudulent money in the ...
The Light Bulb: From Arc to Incandescent to Fluorescent to LED
The Light Bulb: From Arc to Incandescent to Fluorescent to LED
Introduction The invention and utilization of artificial light was crucial to the development of civilization because it enabled humans to extend the length of the day. Today, certain light bulbs are ...
Optical Fibers for Medical Sensors and Light Delivery
Optical Fibers for Medical Sensors and Light Delivery
Optical fibers are a convenient instrument for robust light transfer. Their low losses have enabled their wide use in long distance telecommunication systems while service providers like AT&T, Verizon ...
Photoacoustic Communication: Using Light to Deliver Audible Messages
Photoacoustic Communication: Using Light to Deliver Audible Messages
Introduction to the Photoacoustic Effect Alexander Graham Bell, a prolific inventor most celebrated for inventing the telephone, first observed the photoacoustic effect in 1880. Bell was experimenting with ...
Clear Lenses as Efficient Ocular Protection against UV Exposure
Clear Lenses as Efficient Ocular Protection against UV Exposure
A joint team of researchers from the University of Tuebingen in Germany and Carl Zeiss Vision explore the efficiency of clear lenses as forms of ocular protection against UV light in a recently published ...
Spectroscopy Imaging: Measuring Light for Research and Industry
Spectroscopy Imaging: Measuring Light for Research and Industry
Introduction to Spectroscopy Imaging We have discussed many applications of spectrometers, but how do we attain the final spectral image to analyze? Spectrometers contain varying types of imaging systems ...