Hi:
Is it physically-possible to design and build a 400 nm laser that is
directly-"pumped" by aneutronic nuclear fusion and in which the active
laser medium is a rare-earth crystal?
The "pump" is the part of the laser that excites the atoms in the laser
medium.
Hydrogen-Boron fusion is an example of aneutronic fusion. 400 nm is
about the shortest wavelength the human eye can detect.
In aneutronic fusion no more than 1% of the total energy released is
carried by neutrons. Aneutronic fusion is the best nuclear power. It
emits charged particles that can be directly converted to electricity.
No turbine or steam are needed. In D-T fusion requires turbines and
steam, the neutrons hit water, boiling it. In aneutronic fusion, the
nuclear energy can be directly converted to light/electricity so it is
better.
Fusion is better than fission. Death to fission. Of all types of fusion,
aneutronic is the best. Hydrogen-Boron fusion is the best candidate for
this type of fusion.
I don't want to need any steam, turbines, or other cantankerous devices.
I want direct conversion.
I dream of using this for a variety of applications. Telecommunications
and power supply are two significant purposes.
One potential advantage I see, is that -- unlike electrical devices --
these optical devices will not be damaged by solar flares [a common
cause of blackouts] or EMP [ElectroMagnetic Pulse].
So using light -- instead of electricity -- as a power source has this
benefit.
In this hypothetical situation, the following would likely be utilized:
The power supply starts off as a high-power 400 nm laser that is pumped
by aneutronic fusion at a remote power station. As the laser light runs
to my home, it does not do so at full-blast -- that would mean total
destruction in everything in the path of the laser. Instead this
gigalaser is used to power and pump smaller less intense 400 nm lasers
which lead to my house. The lasers get smaller and less intense on their
way from the power-station to my house. At my house they provide the
same amount of power that a normal electric socket would provide.
Telephones and cable television would also benefit heavily from using
the coherent light in place of electric signals. Optical signals can
carry far more bandwidth than electric signals.
Now how does one convert 400 nm laser light into motive power? Well,
there are certain proteins that change shape when exposed to light.
Perhaps contractile proteins -- similar to those found in our muscles --
could be constructed in such a way that they would contract and relax in
a manner analogous to the intensity of the blue light they are exposed
to. Muscle cells from donors could be bioengineered so that they respond
solely to 400 nm light by changing their contractile state. Muscle cells
from donors could be bioengineered so that they respond solely to 400
nm light by changing their contractile state. Photoreceptors engineered
from retina could be attached to the muscle cells. When light is ****ned
onto the photoreceptors, photochemical protein-based process could be
engineered such that excitant-proteins will be released into the muscle
cells causing them to contract. When the light is removed, then the lack
of excitation in the photoreceptors trigger the release of
relaxant-proteins which will relax the muscle cells.
Also, I would like to use this laser light for cybernetics -- i.e.
connecting the brain to optical digital computers. Certain types of
proteins at certain concentrations can be made to code for 400 nm laser
light of varying intensities and rates; and visa versa. The rate at
which the intensity of the laser light varies could code for various
concentrations of certain proteins. Many neurotransmitters are proteins.
The neurons in our retinae, respond to light as they have photoreceptors
attached to them. When photons hit a photoreceptor, there is a
photochemical reaction involving proteins. Some bioengineering could be
done on the brain so that the brain's neurons also sprout photoreceptors
that specifically respond to 400 nm light.
The reason I want aneutronic fusion is that it is more solid state than
other types of fusion. For example, deuterium-tritium relies on emitting
neutrons to hit and boil water making the steam move a turbine. I want
solid-state power which is why aneutronic fusion is the best bet.
Aneutronic fusion can directly generate photons and pump a crystal,
where as D-T fusion would require a lot more steps to get the intended
result.
I would like the 400 nm laser should be pumped by aneutronic fusion. The
lasing medium should be some kind of rare-earth crystal. The light
energy emitted from the aneutronic fusion should cause the atoms in the
rare-earth crystal to emit 400 nm light after exciting the electrons in
those atoms. When photons resulting from the fusion energy are released,
they hit the atoms in the rare-earth crystal. This causes electrons in
those atoms to initially move to a higher-energy state, then from the
higher-energy state back to the lower-energy state. When the electrons
move from higher-energy to lower-energy state in the crystal's atoms,
they cause those atoms to emit 400 nm light. The laser has two mirror,
one with specs of silver, the other without. The 400 nm photons will
leave the half-silvered mirror. The laser then emits 400 nm light.
Now, you might ask "What do you do to utilize the 400 nm energy
delivered to your house? Certainly, one way would be to stimulate
fluorescence and produce visible light, but what about heat, appliance
power, etc.? "
My answer is, To make white light, stimulate fluorescence. As for heat,
400 nm light of sufficient intensity can produce sufficient heat for any
task. It is possible that these lasers could also be used -- to some
extent -- for cooling, though this would only work on certain
substances. Google "laser cooling".
Computers and similar devices can be made purely optical. Instead of
electronic, they are photonic. Light becomes the source of power as well
as data.
Thanks,
Radium
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