Conference title, upper and lower case, bolded, 18 point type
... focusing of the microsphere do not resolve the problems what is the highest lateral resolution with the microsphere and what is the optimal parameters of the microsphere to realize the highest lateral resolution. These problems are very important for researchers to clearly understand the lateral res ...
... focusing of the microsphere do not resolve the problems what is the highest lateral resolution with the microsphere and what is the optimal parameters of the microsphere to realize the highest lateral resolution. These problems are very important for researchers to clearly understand the lateral res ...
Femtosecond powder diffraction with a laser-driven hard X
... A multilayer X-ray optic focuses the X-rays emitted in forward direction onto the powder sample. The optic collects X-rays in a solid angle of approximately 10−4 , resulting in a X-ray flux of 106 photons per seconds on the sample. The X-ray spot size on the sample is between 30 to 200 μ m (FWHM), d ...
... A multilayer X-ray optic focuses the X-rays emitted in forward direction onto the powder sample. The optic collects X-rays in a solid angle of approximately 10−4 , resulting in a X-ray flux of 106 photons per seconds on the sample. The X-ray spot size on the sample is between 30 to 200 μ m (FWHM), d ...
Shaping the focal intensity distribution using spatial coherence
... requires high intensity at focus, while the trapping of lowindex particles requires low intensity at focus. The J0 focusing configuration allows one to construct a system that can continuously switch between these two trapping conditions [14]. It is also observed that J1共x兲 / x correlated fields res ...
... requires high intensity at focus, while the trapping of lowindex particles requires low intensity at focus. The J0 focusing configuration allows one to construct a system that can continuously switch between these two trapping conditions [14]. It is also observed that J1共x兲 / x correlated fields res ...
Super-Resolution Microscopy: Interference and Pattern Techniques
... In fluorescence microscopy, the wavelength of the emission light is close to that of the excitation light (λem ≈ λex ). Hence, the reciprocal grating period of the smallest possible illumination pattern approximates the cut-off frequency kcut-off . The delta functions of the Fourier-transformed illum ...
... In fluorescence microscopy, the wavelength of the emission light is close to that of the excitation light (λem ≈ λex ). Hence, the reciprocal grating period of the smallest possible illumination pattern approximates the cut-off frequency kcut-off . The delta functions of the Fourier-transformed illum ...
Lenses, the eye and other applications of light
... On the diagram, draw lines to show how the light passes through each lens into the region within the dotted lines. ...
... On the diagram, draw lines to show how the light passes through each lens into the region within the dotted lines. ...
Partially coherent image formation with x
... parameters below have different meanings, depending on the type of instrument. The microscopes considered here detect the intensity distribution in the detector plane, so that only one two-dimensional 12D2 section of the sample can be seen at a time. To record the complex index of refraction n1x, y ...
... parameters below have different meanings, depending on the type of instrument. The microscopes considered here detect the intensity distribution in the detector plane, so that only one two-dimensional 12D2 section of the sample can be seen at a time. To record the complex index of refraction n1x, y ...
optical design of an echelle grating based atomic emission
... gratings. The reciprocal linear dispersion is given by: dλ / dl = d . cos β / m . f2 ...
... gratings. The reciprocal linear dispersion is given by: dλ / dl = d . cos β / m . f2 ...
SRON presentation - University of Groningen
... But: “Pure” (geometrical) optical systems would require components much larger than λ. In sub- /mm range diffraction is important, and quasi-optics handles this in a theorectical way. ...
... But: “Pure” (geometrical) optical systems would require components much larger than λ. In sub- /mm range diffraction is important, and quasi-optics handles this in a theorectical way. ...
F - mjburns.net
... refraction, the light ray is bent away from the normal. The angle is determined by ...
... refraction, the light ray is bent away from the normal. The angle is determined by ...
Acoustooptic interaction of two light beams in a paratellurite crystal
... was excited by a piezoelectric transducer made from xcut lithium niobate. The calculation has shown that, when the length of the piezoelectric transducer is l = 1.4 cm and the ultrasonic frequency is f = 180– 190 MHz, the sound divergence is 4 mrad. The acoustic-wave velocity is oriented at the angl ...
... was excited by a piezoelectric transducer made from xcut lithium niobate. The calculation has shown that, when the length of the piezoelectric transducer is l = 1.4 cm and the ultrasonic frequency is f = 180– 190 MHz, the sound divergence is 4 mrad. The acoustic-wave velocity is oriented at the angl ...
Airy disk
In optics, the Airy disk (or Airy disc) and Airy pattern are descriptions of the best focused spot of light that a perfect lens with a circular aperture can make, limited by the diffraction of light. The Airy disk is of importance in physics, optics, and astronomy.The diffraction pattern resulting from a uniformly-illuminated circular aperture has a bright region in the center, known as the Airy disk which together with the series of concentric bright rings around is called the Airy pattern. Both are named after George Biddell Airy. The disk and rings phenomenon had been known prior to Airy; John Herschel described the appearance of a bright star seen through a telescope under high magnification for an 1828 article on light for the Encyclopedia Metropolitana:...the star is then seen (in favourable circumstances of tranquil atmosphere, uniform temperature, &c.) as a perfectly round, well-defined planetary disc, surrounded by two, three, or more alternately dark and bright rings, which, if examined attentively, are seen to be slightly coloured at their borders. They succeed each other nearly at equal intervals round the central disc....However, Airy wrote the first full theoretical treatment explaining the phenomenon (his 1835 ""On the Diffraction of an Object-glass with Circular Aperture"").Mathematically, the diffraction pattern is characterized by the wavelength of light illuminating the circular aperture, and the aperture's size. The appearance of the diffraction pattern is additionally characterized by the sensitivity of the eye or other detector used to observe the pattern.The most important application of this concept is in cameras and telescopes. Owing to diffraction, the smallest point to which a lens or mirror can focus a beam of light is the size of the Airy disk. Even if one were able to make a perfect lens, there is still a limit to the resolution of an image created by this lens. An optical system in which the resolution is no longer limited by imperfections in the lenses but only by diffraction is said to be diffraction limited.