TY - JOUR
T1 - Sub-wavelength and non-periodic holes array based fully lensless imager
AU - Gur, Aviram
AU - Aharoni, Ran
AU - Zalevsky, Zeev
AU - Kutchoukov, Vladimir G.
AU - Mico, Vicente
AU - Garcia, Javier
AU - Garini, Yuval
PY - 2011/7/1
Y1 - 2011/7/1
N2 - We present a novel concept for microscopic imaging. The proposed microscope-like device does not include an objective lens neither a condenser. Instead, a metallic plate of sub-wavelength hole-array with a varying pitch is used to illuminate the inspected object that is mounted very close to it. As a result, the transmitted spectrum through each hole differs from the others and therefore, each spot of the detected object is illuminated with a unique spectrum. By measuring a single spectrum that is the sum of all the spectra that are transmitted through the sample and by using spectral decomposition algorithms, the spatial transmission pattern of the object can be extracted.
AB - We present a novel concept for microscopic imaging. The proposed microscope-like device does not include an objective lens neither a condenser. Instead, a metallic plate of sub-wavelength hole-array with a varying pitch is used to illuminate the inspected object that is mounted very close to it. As a result, the transmitted spectrum through each hole differs from the others and therefore, each spot of the detected object is illuminated with a unique spectrum. By measuring a single spectrum that is the sum of all the spectra that are transmitted through the sample and by using spectral decomposition algorithms, the spatial transmission pattern of the object can be extracted.
KW - Fourier transform optics
KW - Image processing and restoration
KW - Nano-plasmonics
UR - https://www.scopus.com/pages/publications/79955925976
U2 - 10.1016/j.optcom.2011.03.067
DO - 10.1016/j.optcom.2011.03.067
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SN - 0030-4018
VL - 284
SP - 3509
EP - 3517
JO - Optics Communications
JF - Optics Communications
IS - 14
ER -