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2. Holiday lighting technology - Wikipedia

   en.wikipedia.org/wiki/Holiday_lighting_technology

   While the idea was first demonstrated by Benjamin Franklin, the idea was adapted for use in Christmas lights. They were invented by Carl Otis in 1935, who sold the patents to the NOMA Electric Corporation. There is a long story involving patent fights. [5] Bubble lights can still be purchased online and in stores to this day.

3. Laser - Wikipedia

   en.wikipedia.org/wiki/Laser

   Powerful laser is 'brightest light in the universe'—The world's most powerful laser as of 2008 might create supernova-like shock waves and possibly even antimatter "Laser Fundamentals" an online course by F. Balembois and S. Forget. Northrop Grumman's Press Release on the Firestrike 15 kW tactical laser product

4. List of laser types - Wikipedia

   en.wikipedia.org/wiki/List_of_laser_types

   Laser types with distinct laser lines are shown above the wavelength bar, while below are shown lasers that can emit in a wavelength range. The height of the lines and bars gives an indication of the maximal power/pulse energy commercially available, while the color codifies the type of laser material (see the figure description for details).

5. Laser construction - Wikipedia

   en.wikipedia.org/wiki/Laser_construction

   Other optical devices, such as spinning mirrors, modulators, filters, and absorbers, may be placed within the optical resonator to produce a variety of effects on the laser output, such as altering the wavelength of operation or the production of pulses of laser light. Some lasers do not use an optical cavity, but instead rely on very high ...

6. Station of Extreme Light - Wikipedia

   en.wikipedia.org/wiki/Station_of_Extreme_Light

   Example of petawatt laser. The Station of Extreme Light (SEL, 极端光物理线站) is laser facility aimed at producing a laser with 100 petawatts (PW) of peak power. The station is currently under construction in Shanghai, China. [1] The laser may be powerful enough to produce matter and antimatter directly from a vacuum [2] (the Schwinger ...

7. Laser pointer - Wikipedia

   en.wikipedia.org/wiki/Laser_pointer

   Red (635 nm), blueish violet (445 nm), and green (520 nm) laser pointers. A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot.