Trident laser
The Trident Laser was a high power, sub-
The Trident Laser consisted of three main laser chains (A,B, and C) of neodymium glass amplifiers (or Nd:glass), two identical longpulse beams lines, A&B, and a third beamline, C, that could be operated either in longpulse or in chirped pulse amplification (CPA) shortpulse mode.[2] Longpulse beams A and B, were laser chains capable of delivering up to ~500 J at 1054 nm, which were frequency doubled to 527 nm and ~200 J depending on pulse duration; the pulse duration could be varied from 100 ps to 1 μs, and was a unique capability of any large laser in the US (and possibly the world). The third laser chain, beamline C, could produce up to ~200 J at 1054 nm, or could be frequency doubled to 527 nm at ~100 J in the longpulse mode with the same pulse duration variability as beams A and B; or could be used in the Trident enhancement configuration allowing the ~200 J beam to be compressed via CPA to ~600 fs and ~100 J, producing powers on the scale of a quarter
The 200TW shortpulse ultra high-intensity laser system is currently a world record holder in ion acceleration energy with Target Normal Sheath Acceleration mechanism,[4] producing protons at 58.5 MeV from a flat-foil,[5] beating the record of the NOVA Petawatt laser back in 1999;[6] and 67.5 MeV protons from micro-cone targets.[7][8] Trident delivers Petawatt performance at a fifth of the power. The 200TW or C beam is capable of focusing down to less than 10 micrometers in diameter to reach laser field intensities (irradiance) of ~2x1020 W/cm2, producing protons over 50 MeV[9] as well as high quality, high energy xrays.[10] The interaction can be diagnosed with a Backscatter Focal Diagnostics [11] similar to a Full Aperture Back-scatter (FABS)[12] diagnostic at the National Ignition Facility. A new front-end for the laser employs a 2nd order cleaning technique, dubbed SPOPA (for Short-Pulse Optical Parametric Amplification) cleaning, which reduces the contrast to better than 10−9 ASE intensity ratio, making it one of the cleanest ultra high-intensity high-power laser in the world.[13]
The laser was being used for Fast Ignition ICF research, warm dense matter experiments, materials dynamics studies, and laser-matter interaction research, including particle acceleration, x-ray backlighting and laser-plasma instabilities (LPI).
For more information see the Trident User Facility Website: Trident User Facility, Los Alamos National Laboratory, see the references below and these articles using the laser:[14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]
See also
References
- PMID 21052257.
- ^ Trident as an Ultrahigh Irradiance Laser, R.P Johnson et al., LA-UR-9541 (1995), Los Alamos National Laboratory
- PMID 19044618.
- S2CID 32086240. Retrieved 22 March 2022.
- PMID 19044515.
- PMID 11005974.
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- PMID 19044515.
- PMID 19044560.
- PMID 19044689.
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- PMID 19649068.
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- S2CID 250667598.
- S2CID 38322491.
- S2CID 41645210.
- S2CID 28559709.
- OSTI 1254984.
- PMID 21034048.
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- S2CID 119747444.
- S2CID 25075234.
- OSTI 960939.
- PMID 19044693.
- PMID 18764401.
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- PMID 17764320.
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- S2CID 4406238.
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External links
- Trident Homepage (Archived)