منابع مشابه
Diffraction unlimited all-optical recording of electron spin resonances.
We show stimulated emission depletion microscopy to break the diffraction limit in the all-far-field-optical detection of magnetic fields and resonances. Electron spin resonances from single nitrogen-vacancy centers in diamond located at subdiffraction proximities are fully discerned. Since diffraction is overcome by disallowing the signaling state through an optical transition such as stimulat...
متن کاملHigh-resolution optical diffraction microscopy.
In an optical diffraction microscopy experiment, one measures the phase and amplitude of the field diffracted by the sample and uses an inversion algorithm to reconstruct its map of permittivity. We show that with an iterative procedure accounting for multiple scattering, it is possible to visualize details smaller than lambda/4 with relatively few illumination and observation angles. The roles...
متن کاملdiffraction-unlimited three-dimensional optical nanoscopy with opposing lenses
The resolution of far-field optical microscopy stagnated for a century, but a quest began in the 1990s leading to nanoscale imaging of transparent fluorescent objects in three dimensions. Important elements in this pursuit were the synthesis of the aperture of two opposing lenses and the modulation or switching of the fluorescence of adjacent markers. The first element provided nearly isotropic...
متن کاملBreaking the diffraction barrier in fluorescence microscopy by optical shelving.
We report the breaking of the diffraction resolution barrier in far-field fluorescence microscopy by transiently shelving the fluorophore in a metastable dark state. Using a relatively modest light intensity of several kW/cm(2) in a focal distribution featuring a local zero, we confine the fluorescence emission to a spot whose diameter is a fraction of the wavelength of light. Nanoscale far-fie...
متن کاملSpectroscopic diffraction phase microscopy.
We present spectroscopic diffraction phase microscopy (sDPM) as a method capable of measuring quantitative phase images at multiple wavelengths. sDPM uses a spatial light modulator at the Fourier plane of a lens to select desired wavelengths from the white light illumination of a grating. The quantitative phase information at different wavelengths allows us to decouple the refractive index and ...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2008
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(09)70003-3