کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1537002 | 996578 | 2011 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of micro-lenses based on single interferogram analysis using Hilbert transformation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Characterization of micro-lenses based on single interferogram analysis using Hilbert transformation Characterization of micro-lenses based on single interferogram analysis using Hilbert transformation](/preview/png/1537002.png)
چکیده انگلیسی
Measurement of the shape, surface quality, and optical performance of micro-lenses, as well as, the uniformity of the parameters across the wafer is an important issue. In this paper we describe a reflection/transmission microscopic interferometer for characterization of micro-lens array. A Hilbert transform (HT) based method is applied to enhance the fringe contrast and to recover the phase from a single fringe pattern with closed fringes. The reflection mode of operation reveals the geometrical properties of the array whereas transmission mode of operation provides information regarding the focal properties of the micro-lenses. Experimental results on a square-packed fused silica micro-lens array are presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 284, Issue 21, 1 October 2011, Pages 5084–5092
Journal: Optics Communications - Volume 284, Issue 21, 1 October 2011, Pages 5084–5092
نویسندگان
U. Paul Kumar, N. Krishna Mohan, M.P. Kothiyal,