长波范围 meaning in Chinese

long-wave limit

Gaas / algaas quantum well photodetectors ( qwips ) are new type devices and progressed rapidly in recent 20 years . qwips utilizing intersubband absorption between gallium arsenide ( gaas ) well and aluminum gallium arsenide ( alxga1 _ xas ) barriers were perfected . therefore , the ability to accurately control the band structure and hence the spectral response , as well as both established technology for growing and processing gaas optical devices and commercially available large area vlsi gaas ic ' s , makes gaas / algaas qwips attractive devices for use in very large focal plane arrays ( fpas ) , especially available in the range of long wavelength 8 - 12 urn
Gaas algaas量子阱红外探测器( qwips )是近二十年来迅速发展起来的一种新型红外探测器，它成功地利用了gaas势阱和al _ xga _ ( 1 - x ) as势垒之间的子带间吸收，使之具有能带结构可精确设计从而获得指定光谱响应的特点，加之成熟的材料生长技术、器件工艺，以及商业上可获得大面积的vlsigaas集成电路，使得gaas algaasqwips尤其适宜制作8 12 m长波范围的大面阵探测器。