Wang Y, Granados E, Larotonda M A, Berrill M, Luther B M, Patel D, Menoni C S, Rocca J J
NSF ERC for Extreme Ultraviolet Science and Technology, and Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO 80523, USA.
Phys Rev Lett. 2006 Sep 22;97(12):123901. doi: 10.1103/PhysRevLett.97.123901. Epub 2006 Sep 18.
We demonstrate the generation of an intense soft-x-ray-laser beam by saturated amplification of high harmonic seed pulses in a dense transient collisional soft-x-ray-laser plasma amplifier created by heating a titanium target. Amplification in the 32.6 nm line of Ne-like Ti generates laser pulses of subpicosecond duration that are measured to approach full spatial coherence. The peak spectral brightness is estimated to be approximately 2 x 10(26) photons/(s mm(2) mrad(2) 0.01% bandwidth). The scheme is scalable to produce extremely bright lasers at very short wavelengths with full temporal and spatial coherence.
我们展示了通过在加热钛靶产生的密集瞬态碰撞软X射线激光等离子体放大器中对高次谐波种子脉冲进行饱和放大来产生强软X射线激光束。在类氖钛的32.6纳米谱线中的放大产生了持续时间为亚皮秒的激光脉冲，经测量其接近完全空间相干。估计峰值光谱亮度约为2×10(26) 光子/(秒·平方毫米·毫弧度平方·0.01%带宽)。该方案可扩展，以在极短波长下产生具有完全时间和空间相干性的极亮激光。
