6533b7d9fe1ef96bd126d55e

RESEARCH PRODUCT

Sub-wavelength and non-periodic holes array based fully lensless imager

V.g. KutchoukovAviram GurVicente MicóRan AharoniYuval GariniZeev ZalevskyJavier Garcia

subject

Physicsbusiness.industryCondenser (optics)Spectrum (functional analysis)Object (computer science)Sample (graphics)Atomic and Molecular Physics and OpticsSpectral lineElectronic Optical and Magnetic MaterialsMatrix decompositionlaw.inventionLens (optics)OpticsTransmission (telecommunications)lawElectrical and Electronic EngineeringPhysical and Theoretical Chemistrybusiness

description

Abstract 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.

yearjournalcountryeditionlanguage
2011-07-01Optics Communications
https://doi.org/10.1016/j.optcom.2011.03.067