One of the last steps in the process before reaching the target chamber is to convert the infrared (IR) light at 1053 nm into the ultraviolet (UV) at 351 nm in a device known as a frequency converter .  These are made of thin sheets (about 1 cm thick) cut from a single crystal of potassium dihydrogen phosphate . When the 1053 nm (IR) light passes through the first of two of these sheets, frequency addition converts a large fraction of the light into 527 nm light (green). On passing through the second sheet, frequency combination converts much of the 527 nm light and the remaining 1053 nm light into 351 nm (UV) light. IR light is much less effective than UV at heating the targets, because IR couples more strongly with hot electrons which will absorb a considerable amount of energy and interfere with compression. The conversion process can reach peak efficiencies of about 80 percent for a laser pulse that has a flat temporal shape, but the temporal shape needed for ignition varies significantly over the duration of the pulse. The actual conversion process is about 50 percent efficient, reducing delivered energy to a nominal MJ. 
I have read your account with great interest. As an omeprazole user I have also been struggling with iron deficiency and desperately wondering why my iron levels have not gone up. I have had an iron infusion and levels went up. But it is only after some reading that I discover that omeprazole inhibits iron absorption. I am trying to stop the omeprazole but it is incredibly difficult. I am trying all the things which others have recommended on here. Not an easy thing to do. I just hope there is light at the end of the tunnel and I can no longer feel burning in my throat!
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