Rossi (4), give for the diffraction-limited
resolution of light passing through a circular aperture.
At the heart of the project proposed here is a deep diffraction-limited
parabolic mirror, which can provide the required aberration-free focusing of a vectorial dipole wave over the full 4p solid angle a true challenge to optics.
However, a number of recent advancements in optical imaging techniques are able to improve the ability of light to propagate through tissues with diffraction-limited
18) A similar diffraction-limited
technique called total internal reflection fluorescence microscopy generates a near-field wave at the surface of a specimen.
2] factor, defined as the beam parameter product divided by the corresponding product for a diffraction-limited
Gaussian beam with the same wavelength (Paschotta, 2004).
The growth of the central saturated area in figure (9, 12 and 13) is purely related to optical effects and can be described mathematically using the diffraction-limited
point spread function.
When combined with the acquisition of high-temporal data at diffraction-limited
spatial resolution, this makes it possible to study the fluorescence dynamics of living cells -- at extraordinarily high speeds and with complete confidence.
Instead of scanning a diffraction-limited
laser spot across the sample, a spinning disk with multiple holes uses a light source to produce high-speed, nondiffracted images, resulting in highly accurate, real-time imaging of cells or tissue.
Nanoscale resolution beats the wavelength-scale limits imposed by diffraction-limited
, classical optics by a factor of 100.
Any conceivable sensing technology can be defeated under the prevailing conditions: distances on the order of thousands to tens of thousands of miles, velocities of thousands of miles per hour and objects whose size is unresolvable at that range even by diffraction-limited
Considering all three dimensions, the device can distinguish structures only one-eighteenth the minimum volume discernable by diffraction-limited
equipment, the researchers say.
beam quality is available for those applications requiring less than four (4) wavelengths.