无需空穴参与的量子级联激光器过去十年中，紧凑型半导体激光器使几个新技术领域获得发展。最引人注目的有光通信、光数据存储和光盘。但直至今日，半导体激光器只在相当窄的波段（主要是近红外）内得到发展，这点限制了其进一步应用。短波段激光器近来有了高速发展。红光... Quantum cascade lasers without hole participation Compact semiconductor lasers have led to several new areas of technology over the past decade. The most compelling optical communication, optical data storage and optical discs. However, until now, semiconductor lasers have only been developed in relatively narrow bands (mainly near infrared), which limits their further application. Short-wavelength lasers have seen rapid growth lately. Red light ...