کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
850905 909294 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experiment of Doppler shift of diffraction beam
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Experiment of Doppler shift of diffraction beam
چکیده انگلیسی

Optical heterodyne interfering is used to measure the Doppler shift of diffraction beam of moving plane grating. By introducing Doppler shift in reference beam and contrasting the final beat frequency, the Doppler shift is measured to be normal when incident light and diffraction light are in the same side of the normal of periodic plane grating, which shows that abnormal Doppler shift can not occur on the material with “negative refraction phenomenon” caused by periodicity. Periodic two-dimensional photonic crystal with the property of abnormal Doppler shift has equivalent negative refractive index, and the abnormal properties of left-handed materials are not only caused by periodicity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 124, Issue 20, October 2013, Pages 4341–4344
نویسندگان
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