International Year of Light 2015 (IYL 2015)

International Year of Light 2015 (IYL 2015)

Raise awareness of how optical technologies promote sustainable development

Provide solutions to worldwide challenges in energy, education, agriculture, communications, and health

Opening Ceremony,
19 January 2015 to 20 January 2015
Paris, France

Nobel Prize in Chemistry 2014 - Lecture by S. Hell,
The video shows a lecture by Stephan Hell on Super-Resolution: Overview and Stimulated Emission Depletion (STED) Microscopy.

The Future of Lighting,
Jörg Meyer, Frank Tappe, Nico Schmidt,
ChemViews Mag. 2015.
DOI: 10.1002/chemv.201500033
New challenges for materials research due to the second semiconductor revolution

Snapshot of Light as Both a Particle and Wave,
Vera Koester,
ChemViews Mag. 2015.
DOI: 10.1002/chemv.201500036
Can an image capture the dual behavior of light?

► more on the IYL 2015 at

Major Scientific Anniversaries

  • 1000th: Works on optics by Ibn Al-Haytham in 1015
  • 200th: Augustin Jean Fresnel proposed in 1815 the notion of light as a wave
  • 150th: James Clerk Maxwell proposed in 1865 the electromagnetic theory of light
  • 128th: Albert A. Michelson and Edward W. Morley published the Michelson–Morley experiment in 1887. It failed to detect the motion of Earth through the aether and could not prove the aether theory.
  • 110th: Albert Einstein’s theory of the photoelectric effect in 1905
  • 100th: Albert Einstein's theory of the embedding of light in cosmology through general relativity
  • 57th: Schawlow-Townes Laser Linewidth describes the minimum spectral linewidth of a laser beam. Arthur L. Schawlow and Charles H. Townes predicted this limit in 1958 before the construction of the first laser
  • 55th: Theodore Harold "Ted" Maiman developed the laser in 1960
  • 50th: Arno Penzias and Robert Woodrow Wilson discovered in 1965 the cosmic microwave background
  • 50th: Achievements by Charles Kao concerning the transmission of light in fibers for optical communication

Nobel Lectures on Light

The Aktuelle Wochenschau of the Gesellschaft Deutscher Chemiker (GDCh; German Chemical Society) publishes a new article on light every week




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Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH