Prieto-Blanco Xesús, Montero-Orille Carlos, González-Nuñez Héctor, Mouriz María Dolores, Lago Elena López, de la Fuente Raúl
Departamento de Física Aplicada, Escola Universitaria de Optica e Optometría, Universidade de Santiago de Compostela, 15782 Galicia, Spain.
Opt Express. 2010 Jun 7;18(12):12756-69. doi: 10.1364/OE.18.012756.
This is a proposal and description of a new configuration for an Offner imaging spectrometer based on the theory of aberrations of off-plane classical-ruled spherical diffraction gratings. This new spectrometer comprises a concave mirror used in double reflection and a convex reflection grating operating in quadrature, in a concentric layout. A very simple procedure obtains designs that are anastigmatic for a given point on the entrance slit and a given wavelength. Specific examples show that the performance of this type of system improves the performance of analogous conventional in-plane systems, when compactness and/or high spectral resolution is of fundamental importance.
本文基于离面经典刻划球面衍射光栅的像差理论，提出并描述了一种新型配置的Offner成像光谱仪。这种新型光谱仪由用于双反射的凹面镜和以正交方式工作的凸面反射光栅组成，采用同心布局。通过一个非常简单的程序即可获得针对入射狭缝上的给定点和给定波长无像散的设计。具体示例表明，当紧凑性和/或高光谱分辨率至关重要时，此类系统的性能优于类似的传统共面系统。
