Soft x-ray laser holography with wavelength resolution *
... temporal and spatial coherence of the illuminating source, the resolution of the medium in which the hologram is recorded, and the digitization process used are also factors that influence the ultimate resolution. The experimental setup described in this paper was optimized to limit the degrading ef ...
... temporal and spatial coherence of the illuminating source, the resolution of the medium in which the hologram is recorded, and the digitization process used are also factors that influence the ultimate resolution. The experimental setup described in this paper was optimized to limit the degrading ef ...
Preview of “ZEISS Microscopy Online ...opy Basics | Objectives”
... The most common objectives used on laboratory microscopes are the achromatic objectives. Such objectives are corrected for axial chromatic aberration in blue and red wavelengths, which are about 486 and 656 nanometers, respectively. Both are brought into a single ...
... The most common objectives used on laboratory microscopes are the achromatic objectives. Such objectives are corrected for axial chromatic aberration in blue and red wavelengths, which are about 486 and 656 nanometers, respectively. Both are brought into a single ...
FRESNEL LENSES BASED ON NANO SHELL
... for heat dissipation [4]. These arrays can be constructed based on different optical materials, from bulk to nano-scale structures. For example, a metal slit array-based Fresnel lens was investigated in [5] to couple light into silicon nano-photonic waveguides. In [6], the authors provided an experi ...
... for heat dissipation [4]. These arrays can be constructed based on different optical materials, from bulk to nano-scale structures. For example, a metal slit array-based Fresnel lens was investigated in [5] to couple light into silicon nano-photonic waveguides. In [6], the authors provided an experi ...
chapter26
... The image formed by the first lens is located as though the second lens were not present Then rays or calculations are completed for the second lens The image of the first lens is treated as the object of the second lens The image formed by the second lens is the final image of the system ...
... The image formed by the first lens is located as though the second lens were not present Then rays or calculations are completed for the second lens The image of the first lens is treated as the object of the second lens The image formed by the second lens is the final image of the system ...
Get PDF - OSA Publishing
... was observed as the incident light polarization was varied. Another lens with a longer focal distance of 1000 μm (thus a lower NA of 0.29) was fabricated and measured with the same platform and method. Measurement results for those devices are presented in Fig. S2 of Supplement 1. Slightly higher fo ...
... was observed as the incident light polarization was varied. Another lens with a longer focal distance of 1000 μm (thus a lower NA of 0.29) was fabricated and measured with the same platform and method. Measurement results for those devices are presented in Fig. S2 of Supplement 1. Slightly higher fo ...
Polarization controllable Fresnel lens using dye
... a very low operating voltage (~5Vrms), producing zero and first focus orders that can be separated, having adjustable diffraction efficiency, and having controllable polarization control. The ease with which the Fresnel plate can be fabricated along with the aforementioned properties of the plate gi ...
... a very low operating voltage (~5Vrms), producing zero and first focus orders that can be separated, having adjustable diffraction efficiency, and having controllable polarization control. The ease with which the Fresnel plate can be fabricated along with the aforementioned properties of the plate gi ...
On the diffraction limit for lensless imaging
... adopt an intermediate best value of u. This seemed inadvisable as it might be misinterpreted as an improvement or refinement of the results obtained by Petzval and Rayleigh. The above analysis has shown that both are valid and that there is a fairly wide range of M'S which give acceptably sharp imag ...
... adopt an intermediate best value of u. This seemed inadvisable as it might be misinterpreted as an improvement or refinement of the results obtained by Petzval and Rayleigh. The above analysis has shown that both are valid and that there is a fairly wide range of M'S which give acceptably sharp imag ...
Microscopes - OpenStax CNX
... • Learn how image is formed in a compound microscope. Although the eye is marvelous in its ability to see objects large and small, it obviously has limitations to the smallest details it can detect. Human desire to see beyond what is possible with the naked eye led to the use of optical instruments. ...
... • Learn how image is formed in a compound microscope. Although the eye is marvelous in its ability to see objects large and small, it obviously has limitations to the smallest details it can detect. Human desire to see beyond what is possible with the naked eye led to the use of optical instruments. ...
Diffraction
... When the central maximum of one image falls on the first minimum of the other image, the images are said to be just resolved. For a slit with width a, the limiting angle of resolution is: min = /a. For a circular aperture of diameter D, the limiting angle of resolution is: min = 1.22(/D). ...
... When the central maximum of one image falls on the first minimum of the other image, the images are said to be just resolved. For a slit with width a, the limiting angle of resolution is: min = /a. For a circular aperture of diameter D, the limiting angle of resolution is: min = 1.22(/D). ...
BioE 123 Teaching Material Stanford University
... frequency of the wave. This is what leads to Snell’s law dictating the relationship between refractive index and angles of incidence of the two materials. nair*sin(Θair) = nglass*sin(Θglass) In this example, we also use vectors to represent the direction of light wavefronts (see red vectors, wavefro ...
... frequency of the wave. This is what leads to Snell’s law dictating the relationship between refractive index and angles of incidence of the two materials. nair*sin(Θair) = nglass*sin(Θglass) In this example, we also use vectors to represent the direction of light wavefronts (see red vectors, wavefro ...
Superresolution size determination in fluorescence microscopy: A
... of the cos2 shaped standing wave field present between the two objective lenses; and z 2 is the position of one maximum 共arbitrarily chosen and then fixed兲 of the previously mentioned standing wave field, (z 2 ⫺z o )/C represents the phase of the standing wave field at the object position. Although ...
... of the cos2 shaped standing wave field present between the two objective lenses; and z 2 is the position of one maximum 共arbitrarily chosen and then fixed兲 of the previously mentioned standing wave field, (z 2 ⫺z o )/C represents the phase of the standing wave field at the object position. Although ...
Lecture 3
... interaction with isotropic crystals and passes through at a single velocity. However, when light enters a non-equivalent axis (a), it is refracted into two rays each polarized with the vibration directions oriented at right angles to one another, and traveling at different velocities. This phenomeno ...
... interaction with isotropic crystals and passes through at a single velocity. However, when light enters a non-equivalent axis (a), it is refracted into two rays each polarized with the vibration directions oriented at right angles to one another, and traveling at different velocities. This phenomeno ...
lensed fiber
... Shape of the fiber end: cone (1). tapered cone (2), wedge(3), angled tip wedge (4), cone with flat top (5), ball (6), ball with large working distance (7), angled ball with large working distance and integrated metal reflector(8), angle polished (9), angle polished with metal reflector (10) Fiber le ...
... Shape of the fiber end: cone (1). tapered cone (2), wedge(3), angled tip wedge (4), cone with flat top (5), ball (6), ball with large working distance (7), angled ball with large working distance and integrated metal reflector(8), angle polished (9), angle polished with metal reflector (10) Fiber le ...
An Efficient Wide-Angle Beam Propagation Method Using
... transformation can be readily extended to three dimensional (3-D) cases. Then, by numerically shifting the input beam opposite to the variation of the waveguide geometry in every step, the propagation in a longitudinally varying waveguide can be realized through an ESW. This can be performed by gene ...
... transformation can be readily extended to three dimensional (3-D) cases. Then, by numerically shifting the input beam opposite to the variation of the waveguide geometry in every step, the propagation in a longitudinally varying waveguide can be realized through an ESW. This can be performed by gene ...
UV-light microscope: improvements in optical imaging for a
... system. The original color camera operated at lower resolution with an effective pixel size corresponding to 1.2 mm on the sample surface. The new higher resolution monochrome camera in the UV-light microscope system has an effective pixel size measuring 0.3–0.4 mm on the sample surface, so that the ...
... system. The original color camera operated at lower resolution with an effective pixel size corresponding to 1.2 mm on the sample surface. The new higher resolution monochrome camera in the UV-light microscope system has an effective pixel size measuring 0.3–0.4 mm on the sample surface, so that the ...
Optical Coherence Tomography as a diagnostic tool
... although the penetration depth is currently limited to about 2-3 mm. It offers a non-destructive, noncontact, repeatable method of in vivo real time imaging at high speeds [1]. Fercher et al. [2] provide a very concise and nice description of the applications of OCT. “At present OCT is used in three ...
... although the penetration depth is currently limited to about 2-3 mm. It offers a non-destructive, noncontact, repeatable method of in vivo real time imaging at high speeds [1]. Fercher et al. [2] provide a very concise and nice description of the applications of OCT. “At present OCT is used in three ...
IOSR Journal of Applied Physics (IOSR-JAP)
... Abstract: For 384×288 pixel uncooled micro bolometer (a-Si) focal plane array (FPA) detector an infrared optical system (lenses) has been designed in this paper for work in long wavelength infrared region (LWIR) 8— 12 µm. the design results show that the optimum optical performance can be obtained b ...
... Abstract: For 384×288 pixel uncooled micro bolometer (a-Si) focal plane array (FPA) detector an infrared optical system (lenses) has been designed in this paper for work in long wavelength infrared region (LWIR) 8— 12 µm. the design results show that the optimum optical performance can be obtained b ...
289-1028-1
... Poly(2,2’-oxybis(methylene)bis(4-(hydroxyl(4-hydroxymethyl)naphthalene-1yl)(phenyl)methyl)naphthalene-l-ol) (PHMNP )was prepared at room temperature using cast method on a glass 1.4 cm 2 cm size . In order to determine optical constants of the film as a function to wavelength the film thickness wa ...
... Poly(2,2’-oxybis(methylene)bis(4-(hydroxyl(4-hydroxymethyl)naphthalene-1yl)(phenyl)methyl)naphthalene-l-ol) (PHMNP )was prepared at room temperature using cast method on a glass 1.4 cm 2 cm size . In order to determine optical constants of the film as a function to wavelength the film thickness wa ...
Advances in diamond-turned surfaces enable unique cost
... allow the system to maintain alignment even over temperature extremes. Finally, Corning’s experience with precision optical system metrology allows testing at the system level to validate the alignment and the performance of the optics. This paper will present analysis of Offner imaging spectrometer ...
... allow the system to maintain alignment even over temperature extremes. Finally, Corning’s experience with precision optical system metrology allows testing at the system level to validate the alignment and the performance of the optics. This paper will present analysis of Offner imaging spectrometer ...
Phys Chp 10
... Since light can enter a lens from either side, there are two principal foci. The focal length is the same on both sides of the lens, even if the curvature on each side is different. The notation F is always given to the primary principal focus, the point at which the rays converge or from which they ...
... Since light can enter a lens from either side, there are two principal foci. The focal length is the same on both sides of the lens, even if the curvature on each side is different. The notation F is always given to the primary principal focus, the point at which the rays converge or from which they ...
Diffraction
... In addition to the diffraction at a slit, in this experiment, the diffraction grating is also observed. The diffraction grating is a generalization of the diffraction at a double slit, which is an experiment with extreme importance in physics because of the transition from classical physics to quant ...
... In addition to the diffraction at a slit, in this experiment, the diffraction grating is also observed. The diffraction grating is a generalization of the diffraction at a double slit, which is an experiment with extreme importance in physics because of the transition from classical physics to quant ...
Imaging scanning tunneling microscope
... The prospect of creating photonic devices based on surface plasmon propagation is attracting increasing attention.1–5 The motivation has been to create miniaturized optics that would enable higher bandwidth optical computing, all-optical interconnects for telecommunications, or even ‘‘nano-lasers.’’ ...
... The prospect of creating photonic devices based on surface plasmon propagation is attracting increasing attention.1–5 The motivation has been to create miniaturized optics that would enable higher bandwidth optical computing, all-optical interconnects for telecommunications, or even ‘‘nano-lasers.’’ ...
Optical microscope - Frank`s Hospital Workshop
... Recently various video dual CCD camera pickups have been fitted to stereo microscopes, allowing the images to be displayed on a high resolution LCD monitor. Software converts the two images to an integrated anaglyph 3D image, for viewing with plastic red/cyan glasses, or to the cross converged proce ...
... Recently various video dual CCD camera pickups have been fitted to stereo microscopes, allowing the images to be displayed on a high resolution LCD monitor. Software converts the two images to an integrated anaglyph 3D image, for viewing with plastic red/cyan glasses, or to the cross converged proce ...
document
... • The image that is formed by the concave mirror is not virtual. • Rays of light pass through the location of the image. • A real image is formed when light rays converge to form the image. • When an object is farther from a concave mirror than twice the focal length, the image that is formed is rea ...
... • The image that is formed by the concave mirror is not virtual. • Rays of light pass through the location of the image. • A real image is formed when light rays converge to form the image. • When an object is farther from a concave mirror than twice the focal length, the image that is formed is rea ...
univ. physics
... width, and height are called extended objects. Reflects part of the incident light, or a polished metal surface that reflects almost 100% of the light that strikes it. We will always draw the reflecting surface as a black line with a shaded area behind it, as in Fig.1 Bathroom mirrors have a thin sh ...
... width, and height are called extended objects. Reflects part of the incident light, or a polished metal surface that reflects almost 100% of the light that strikes it. We will always draw the reflecting surface as a black line with a shaded area behind it, as in Fig.1 Bathroom mirrors have a thin sh ...
Superlens
A practical superlens, or super lens, is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is a feature of conventional lenses and microscopes that limits the fineness of their resolution. Many lens designs have been proposed that go beyond the diffraction limit in some way, but there are constraints and obstacles involved in realizing each of them.