1) the UV light is needed for an industrial process
2) by breaking the sunlight out into segmented bands of spectrum it can be used to feed conversion crystals (like how a green laser works)
3) this would be part of a renewable energy system, so grid sourced or PV electric power is NOT an option.
4) having worked with engineers in the past I know their first reaction is to shit on any new idea until they see it working, so I can comprehend your confusion.
now going in the other direction of inferred heat would be of interest to Bill Gates and his current Heliostat project, by converting all available sunlight into IR light it would better be able to heat the target, with temps high enough water can be thermally cracked into H2 and O2. IMHO the initial ideal application for such Hydrogen is supplying the Haber process used to produce ammonia for the commercial manufacture of chemical fertilizer.
Necroposting in a thread dead since 2010 notwithstanding.
In another thread your post #44 says:
"There is an application requiring lots of UV light for the catalytic formation of a product, the desired power input is sunlight but the process doesn't work as well with full spectrum natural light. this is why a method to convert full spectrum sunlight into all or mostly UV is desirable. My question is how to go about creating the crystals or other components necessary to achieve this conversion goal. " Post #44 here: https://laserpointerforums.com/threads/solar-laser.97487/
It seems that with regards to using sunlight you are living in a daydream of your own design.
I get what you are imagining in your imagination regarding converting the entire spectrum of visible light sunlight and maybe a little of the invisible as well sunlight into UV laser light but that is purely an imaginary thing--a daydream not related to how photons behave in the real world and how the sunlight spectrum photons can and do function and interact with matter.
"Something for nothing doesn't exist, never has, never will " applies to the generation of electromagnetic energy of whatever frequency---as well as money and most everything else as well.
Probably would be a good idea to get an education about solar power generation as a primer on what is involved in something far simpler and easy to accomplish--- transforming sunlight into another form of energy.
State of the art in solar energy---maybe $25,000 of massive space consuming and ugly solar panels can supply a home with $100 of electricity per month until they fail? A typical U.S. home is 2,300 sq ft in size and uses about 1,000 kWh of electric power per month. The average location in the U.S. has about 5 hours of solar resource. This means the average needs to generate 1,000 kW of power to offset their $100/month electric bill. Given that an average home has access to 150 hours of solar resource per month (5 x 30 days), in order to generate 1000 kWh per month, a typical house would have to install a (1,000kWh/150hrs) 6.67kW solar system. Using the above estimates, a typical U.S. household would require approximately 30 kWh of energy storage capacity per day as well. As a rule of thumb, relatively low cost old lead acid batteries run about $200/kWh and standard lithium-ion between $500-$1000/kWh so 30X that is needed for autonomy + cost of a charge controller or controllers and a battery inverter/charger. --- all of that for $100/month of electric power?
Have a look at :
https://www.solarquotes.com.au/blog/uv-solar-panels/
Basic physics---Conservation of energy see:
https://en.wikipedia.org/wiki/Conservation_of_energy#Mass–energy_equivalence
Pretty clearly, you have no idea of what you are talking about with regards to electromagnetic spectrum, sunlight, photon wavelengths and photon interactions with matter, and especially lasers and what they are and are not and how they work/ function.
There are no "bands" ---bands of any kind are an artificial human created concept to make it conceptually easier to talk about how different portions of the electromagnetic spectrum interact with materials---just a name/symbol for portion of the electromagnetic spectrum--a range of energy/frequency or a name for a range of a spectrum---the visible spectrum is one continuous spectral expanse/range/"band" within electromagnetic wavelength spectrum.
Creating an artificial/pretend conceptual " breaking the sunlight out into segmented bands of spectrum so same can be used to feed "conversion crystals (like how a green laser works)" is not at all how a green DPSS laser is created and functions in the real world--much less an indication of how you would transform the entire spectrum of sunlight into UV light only---no such crystals or technology exists anymore than "dilithium crystals" from Star Trek exist. See:
http://www.mit.edu/~locutus/SFB/rules/node12.html and
https://en.wikipedia.org/wiki/Dilithium_(Star_Trek)
Maybe the below explainations will help with practical real world physics and physical reality vs imaginary physics and imagined physical realities i.e. an imaginary world.
"The
electromagnetic spectrum is the range of
frequencies (the
spectrum) of
electromagnetic radiation and their respective
wavelengths and
photon energies.
The electromagnetic spectrum covers electromagnetic waves with frequencies ranging from below one
hertz to above 1025 hertz, corresponding to
wavelengths from thousands of
kilometers down to a fraction of the size of an
atomic nucleus. This frequency range is divided into separate " frequency bands", and the
electromagnetic waves within each frequency band are called by different names; beginning at the low frequency (long wavelength) end of the spectrum these are:
radio waves,
microwaves,
infrared,
visible light,
ultraviolet,
X-rays, and
gamma rays at the high-frequency (short wavelength) end. The electromagnetic waves in each of these bands and the reason they are named "bands" is because they have different characteristics, such as how they are produced, how they interact with matter, and their practical applications."
See:
https://en.wikipedia.org/wiki/Electromagnetic_spectrum
"The
visible spectrum is the portion of the electromagnetic
spectrum that is
visible to the human eye. Electromagnetic radiation in this range of wavelengths is called
visible light or simply
light. The Visible spectrum has no "bands" it is one continuous increasing or decreasing photon energy level spread across the entire range called visible spectrum.
A typical human eye will respond to wavelengths from about 380 to 740 nanometers." see:
https://en.wikipedia.org/wiki/Visible_spectrum
