AY 105 Lab Experiment #3: Optical aberrations
... an idea of what optical design is all about. This chapter from the software User’s Guide goes through the case of a digital camera lens, which is not our situation, but it’s helpful nonetheless. • Review basic concepts in optical abberation (i.e. deviation from the simple paraxial optical theory we ...
... an idea of what optical design is all about. This chapter from the software User’s Guide goes through the case of a digital camera lens, which is not our situation, but it’s helpful nonetheless. • Review basic concepts in optical abberation (i.e. deviation from the simple paraxial optical theory we ...
Persistent spectral hole burning in an organic material for temporal
... collected into a single beam by a second grating. Both lenses have the same focal distance f 5 25 cm, and the two gratings (Jobin–Yvon 520 12 090, 40 mm 3 60 mm, blazed at 620 nm) have the same parameter a 5 2400 grooves/mm. The grating grooves are set in the vertical direction so that the plane of ...
... collected into a single beam by a second grating. Both lenses have the same focal distance f 5 25 cm, and the two gratings (Jobin–Yvon 520 12 090, 40 mm 3 60 mm, blazed at 620 nm) have the same parameter a 5 2400 grooves/mm. The grating grooves are set in the vertical direction so that the plane of ...
Phase space of partially coherent light with discontinuous surfaces
... focus. The energy ratio of the foci depends on the energy distribution among the diffracted orders. With Δϕ = 1.5, both +1 and −1 orders contain equal energy in phase space. Correspondingly the foci formed by the +1 and −1 orders share the same amount of energy. However, due to different numerical a ...
... focus. The energy ratio of the foci depends on the energy distribution among the diffracted orders. With Δϕ = 1.5, both +1 and −1 orders contain equal energy in phase space. Correspondingly the foci formed by the +1 and −1 orders share the same amount of energy. However, due to different numerical a ...
Shedding Light on Hybrid Optics: A Tutorial in
... optics systems. It is insensitive to machining and waveguide tolerances, offers submicron resolution, minimal insertion losses, and has been demonstrated to withstand temperature, and humidity cycling, as well as vibration and shock testing. A useful trick to help in aligning hybrid optics is to use ...
... optics systems. It is insensitive to machining and waveguide tolerances, offers submicron resolution, minimal insertion losses, and has been demonstrated to withstand temperature, and humidity cycling, as well as vibration and shock testing. A useful trick to help in aligning hybrid optics is to use ...
Capacity of coherent free-space optical links using
... The downconverted heterodyne or homodyne power is maximized when the spatial field of the received signal matches that of the local oscillator. Any mismatch between the amplitudes and phases of the two fields will result in a reduction of the downconverted power, i.e., fading. In the case of cohere ...
... The downconverted heterodyne or homodyne power is maximized when the spatial field of the received signal matches that of the local oscillator. Any mismatch between the amplitudes and phases of the two fields will result in a reduction of the downconverted power, i.e., fading. In the case of cohere ...
Binocular Performance Index
... of the objective lens are not achieved. This helps explain why we get so much significant improvement in binoculars by increasing magnification. Along with increased image scale, higher magnification utilizes more of the ability of the available aperture. As an example, on an exceptionally still cle ...
... of the objective lens are not achieved. This helps explain why we get so much significant improvement in binoculars by increasing magnification. Along with increased image scale, higher magnification utilizes more of the ability of the available aperture. As an example, on an exceptionally still cle ...
Gaussian Beam Propagation Code - LAS
... parameter must be self-consistent, that means it must meet the round-trip condition. ...
... parameter must be self-consistent, that means it must meet the round-trip condition. ...
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.