LASERS and RADIATION

Research into defending life against them may well be essential urgent work

The word "laser" is an acronym for "light amplification by stimulated electro-magnetic radiation".

The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow.

A laser differs from other sources of light in that it emits light which is coherent. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers and lidar (light detection and ranging). Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum. Alternatively, temporal coherence can be used to produce ultrashort pulses of light with a broad spectrum but durations as short as a femtosecond.

The first lasers were made by electrically stimulating ruby crystals. The photons travel through the precious stone to the growing point of its crystalline construction and thus form a fine stream which pours out .

Since the early period of laser history, laser research has produced a variety of improved and specialized laser types, optimized for different performance goals, including:

• new wavelength bands

• maximum average output power

• maximum peak pulse energy

• maximum peak pulse power

• minimum output pulse duration

• minimum linewidth

• maximum power efficiency

• minimum cost

and this research continues to this day.

In 2015, researchers made a white laser, whose light is modulated by a synthetic nanosheet made out of zinc, cadmium, sulfur, and selenium that can emit red, green, and blue light in varying proportions, with each wavelength spanning 191 nm.

In 2017, researchers at TU Delft demonstrated an AC Josephson junction microwave laser. Since the laser operates in the superconducting regime, it is more stable than other semiconductor-based lasers. The device has potential for applications in quantum computing. In 2017, researchers at Technical Universe of Munich demonstrated the smallest mode locking laser capable of emitting pairs of phase-locked picosecond laser pulses with a repetition frequency up to 200 GHz.

In 2017, researchers from the Physikalisch-Technische Bundesanstalt (PTB), together with US researchers from JILA, a joint institute of the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder, established a new world record by developing an erbium-doped fiber laser with a linewidth of only 10 millihertz.

So…

Where is the research and development of protective materials against these potentially life-threatening electro-magnetic radiation tools that are messing with our atmospheric environment?

I found this innovation: A cheap re-usable technological fabric made from aluminium dyed yarn and stainless steel. It is a research paper (2020).

That would be a lot cheaper than the silver thread fabric currently on sale via websites like EMF PROTECTION UK.

This splendid bed canopy, for example, would set us back between £1 & £2 grand depending on bed size, obviously! Who could justify spending that much? Especially not those who need it the most, those who are already sickened by the overload of electro-magnetic radiation!

If you know of any tried, tested realistic ways to protect your bodies and homes against electro-magnetic radiation pile into the comments!

ONWARDS!
xx