littrow typeとは 意味・読み方・使い方

To obtain the constitution of a band narrowing optical system having little variation in its oscillation center wavelength to the utmost even though a temperature variation is generated in an excimer laser using the band narrowing optical system, which consists of beam radius spread prisms and a Littrow layout reflection type diffraction grating.例文帳に追加

ビーム径拡大プリズムとリトロー配置の反射型回折格子とからなる狭帯域化光学系を用いるエキシマレーザ装置において、温度変動があっても発振中心波長変動の極力少ない狭帯域化光学系の構成。 - 特許庁