美国加利福尼亚大学伯克利分校的研究人员在只及人类头发丝千分之一的纳米导线上制造出了世界上最小的激光器——纳米激光器。这种激光器不仅能发射紫外光,经过调整后还能发射从蓝色到深紫外的光。据新出版的美国《科学》杂志报道,研究人员用纯氧化锌晶体制造出了这一激光器。他们先是“培养”纳米导线,在金上形成的纯氧化锌导线直径为20～150nm。当纳米导线长到1 Researchers at the University of California, Berkeley, have created the world’s smallest laser, a nanosecond laser, on a nanowire of only one-thousandth of a human hairline. The laser emits not only UV light, but also light that emits from blue to deep UV. According to a newly published report in the U.S. Science, researchers fabricated the laser from pure zinc oxide crystals. They first “nurtured” nanowires, which form pure zinc oxide wires of 20-150 nm in diameter. When the nanowires grow to 1