کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7131199 1461682 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Portable multi-spectral lens-less microscope with wavelength-self-calibrating imaging sensor
ترجمه فارسی عنوان
میکروسکوپ بدون لنز با چند طیفی قابل حمل با سنسور تصویربرداری با طول موج خود کالیبره
کلمات کلیدی
میکروسکوپ، هولوگرافی دیجیتال، بازیابی فاز، تصویربرداری محاسباتی، دستگاه تصویربرداری قابل حمل
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
چکیده انگلیسی
Multi-spectral imaging technology is helpful to obtain better contrast and more details of images at different wavelengths compared with monochromatic imaging or conventional RGB imaging technologies. And in resource-limited areas, microscopes with features of low-cost and portability are extremely attractive. In this manuscript, we demonstrate that cost-effective lens-less microscopy can be combined with the multi-spectral imaging technology, which can be alternative to conventional approaches and applied in biology, chemistry, environmental science. As a proof of this concept, we present a novel portable multi-spectral lens-less microscope (MSLLM). An outstanding highlight of our setup is its wavelength-self-calibrating imaging sensor (WSCIS), which can provide computationally optimized wavelength value (COWV) for LED illumination in real time. For each illumination, 5 holograms of the sample at 5 different heights are captured. Through the COWVs and phase retrieval algorithms, 7 multi-spectral images (FOV: 4.8 mm*4.6 mm, resolution: ∼1 µm) can be reconstructed. We believe that our MSLLM can be widely applied to multi-spectral microscopy in low-cost required scenes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 111, December 2018, Pages 25-33
نویسندگان
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