Reflective ruled diffraction grating is a kind of optical glass substrate composed of dense, equidistant parallel lines, and the surface is coated with aluminized, multi-layer dielectric or other ...

Spectrographs are important tools for studying many biological and chemical processes and substances, from pigments to plant growth and nucleic acids to pharmaceuticals, providing information about ...

This page contains hints, solutions, and advanced challenges for our diffraction grating challenge. If you would like a grating (or a set for your class if you are a teacher), please contact us at ...

The spectrum of laser technologies available to hackers has gradually widened from basic gas lasers through CO2 tubes, diode lasers, and now fiber lasers. One of the newer entries is the MOPA laser, ...

The importance of light-based technologies for our society was demonstrated once more in recent weeks. Thanks to the internet, millions of people can work remotely, enter virtual classrooms, or talk ...

We already knew that future generations of Google’s Glass headset would include prescription frames and lenses in addition to rumors of the company working with trendy designers to make the frames ...

3D printing and terahertz-wave manipulation aren’t terms you would expect to see in the same sentence, but they can be made to work together. Researchers at Philipps-Universität Marburg (Germany) and ...