کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1534561 | 1512595 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Compact Offner-Wynne imaging spectrometers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
Some ideas that were developed by Wynne to improve the performance of the Offner unit magnification imaging system are used to design Offner imaging spectrometers to which a concentric meniscus lens has been added. The new degrees of freedom associated to the meniscus lens allow removing image aberrations far from the paraxial region in a wide annular area or even more, in two concentric annular areas. This provides a great flexibility of design as it is shown below in four examples. In these examples, the slit length, the f-number or the spectral resolution has been optimized while retaining almost diffraction-limited spot size, with rather separate slit and image, and getting quite compact designs in comparison to the original Offner system. In particular, the most compact system (~50Ã40Ã30mm3) has an f-number of 1.86, a slit length of 9.6Â mm and covers a spectral range from 400 to 1000Â nm, being diffraction-limited for wavelengths longer than 450Â nm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 328, 1 October 2014, Pages 143-150
Journal: Optics Communications - Volume 328, 1 October 2014, Pages 143-150
نویسندگان
Xesús Prieto-Blanco, Raúl de la Fuente,