Add to ORKGThe on-axis irradiance distribution of a truncated conical wavefront is evaluated in terms of the Fresnel number of the focusing geometry. In agreement with geometrical optics, a focal line of increasing intensity is generated for extremely high Fresnel numbers. Otherwise clear deviations may be observed for the position of the maximum irradiance along the optical axis. A remarkable focal squeeze appears and, for decreasing Fresnel numbers, this effect manifests stronger. An analytical formula is provided for the fast evaluation of the focal squeeze. (c) 2005 Elsevier B.V. All rights reserved
Lens-axicon doublets have been used to produce Bessel-Gaussian beams, a narrow non-diffracting beam ...
Centuries ago, it was recognized that the contour of the refracting surface of a conventional lens d...
We analyze the focusing of wave fields of any state of coherence by systems with low Fresnel numbers...
The on-axis irradiance distribution of a truncated conical wavefront is evaluated in terms of the Fr...
[en] The focusing properties of a so-called reflaxicon (a combination of a diverging and a convergin...
International audienceWe present a theoretical and experimental study of the intensity distribution ...
Using a near-field scanning microscope (NT-MDT) with a 100nm aperture cantilever held 1 μm apart fro...
Axicons, as shown in Fig. 1(a), are optical elements that produce long and narrow focal lines along ...
The distribution of the complex field in the focal region of a lens is a classical optical diffracti...
The far-field intensity pattern of laser beams diffracted by axicons is extensively characterized bo...
Thesis (M.S.)--University of Rochester. College of Engineering and Applied Science. Institute of Opt...
Axicons have been proposed for imaging applications since they offer the advantage of extended depth...
We present a formulation for a suitable description of the focal shift in optical waves that have an...
si 2 numerical aperture. In high-speed OCT imaging, in which an tightly fo at only on moves ou scan....
Ultrasonic axicons generate waves which focus on a line. They are used in various imaging applicati...
Lens-axicon doublets have been used to produce Bessel-Gaussian beams, a narrow non-diffracting beam ...
Centuries ago, it was recognized that the contour of the refracting surface of a conventional lens d...
We analyze the focusing of wave fields of any state of coherence by systems with low Fresnel numbers...
The on-axis irradiance distribution of a truncated conical wavefront is evaluated in terms of the Fr...
[en] The focusing properties of a so-called reflaxicon (a combination of a diverging and a convergin...
International audienceWe present a theoretical and experimental study of the intensity distribution ...
Using a near-field scanning microscope (NT-MDT) with a 100nm aperture cantilever held 1 μm apart fro...
Axicons, as shown in Fig. 1(a), are optical elements that produce long and narrow focal lines along ...
The distribution of the complex field in the focal region of a lens is a classical optical diffracti...
The far-field intensity pattern of laser beams diffracted by axicons is extensively characterized bo...
Thesis (M.S.)--University of Rochester. College of Engineering and Applied Science. Institute of Opt...
Axicons have been proposed for imaging applications since they offer the advantage of extended depth...
We present a formulation for a suitable description of the focal shift in optical waves that have an...
si 2 numerical aperture. In high-speed OCT imaging, in which an tightly fo at only on moves ou scan....
Ultrasonic axicons generate waves which focus on a line. They are used in various imaging applicati...
Lens-axicon doublets have been used to produce Bessel-Gaussian beams, a narrow non-diffracting beam ...
Centuries ago, it was recognized that the contour of the refracting surface of a conventional lens d...
We analyze the focusing of wave fields of any state of coherence by systems with low Fresnel numbers...
