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英國Cascade Technology
英國Cascade Technology公司是量子級聯激光器的領導廠商，量子級聯激光器是一種新型的半導體激光器，其最大的特點是波長在紅外區域連續可調，是一種非常理想的高分辨率、低噪音的光源，由于是半導體激光器，具有很好的耐用性，工作溫度可以在零下50度到70度之間，工作壽命可以達到15年以上。根據其特點，產品目前在環境氣體檢測以及爆炸物檢測方面具有很好的應用前景。
The development of the technology started in 1999 when an Engineering and Physical Sciences Research Council (EPSRC) grant was awarded to University of Strathclyde Physics and Applied Physics to carry out research into the use of Quantum Cascade Lasers for gas sensing applications. During the research, Erwan Normand identified that a commercial opportunity existed, which led to the identification of the IP. The patent was applied for in April 2002 in the UK and was extended in April 2003 to gain worldwide coverage.