Aero-Optical Environment Around a Cylindrical Turret with a Flat
... All tests were performed in transonic facilities at Hessert Laboratory for Aerospace Research, University of Notre Dame. The facilities were described in detail in Gordeyev at al. [7] and an interested reader is referred to this reference for a complete discussion. Except for portions required high- ...
... All tests were performed in transonic facilities at Hessert Laboratory for Aerospace Research, University of Notre Dame. The facilities were described in detail in Gordeyev at al. [7] and an interested reader is referred to this reference for a complete discussion. Except for portions required high- ...
Generation of radially and azimuthally polarized light by optical
... The discovery of extraordinary optical transmission through periodic arrays of subwavelength apertures in metal films has inspired considerable research interest owing to both its intriguing underlying physics and potential applications in a variety of fields such as quantum optics, optical waveleng ...
... The discovery of extraordinary optical transmission through periodic arrays of subwavelength apertures in metal films has inspired considerable research interest owing to both its intriguing underlying physics and potential applications in a variety of fields such as quantum optics, optical waveleng ...
Cristaux photoniques non
... Introduction to solitons In optics, the term soliton is used to refer to any optical field that does not change during propagation because of a delicate balance between nonlinear and linear effects in the medium. There are two main kinds of solitons: Spatial solitons: the nonlinear effect can balan ...
... Introduction to solitons In optics, the term soliton is used to refer to any optical field that does not change during propagation because of a delicate balance between nonlinear and linear effects in the medium. There are two main kinds of solitons: Spatial solitons: the nonlinear effect can balan ...
Inverse Problems in Astronomical Adaptive Optics
... light source and a receiver. In ground-based astronomy, light from distant objects is distorted by the effects of turbulence as it propagates through the earth’s atmosphere. This leads to severe degradation in the quality of images that can be obtained with a telescope. The purpose of AO in astronom ...
... light source and a receiver. In ground-based astronomy, light from distant objects is distorted by the effects of turbulence as it propagates through the earth’s atmosphere. This leads to severe degradation in the quality of images that can be obtained with a telescope. The purpose of AO in astronom ...
Multichip module with planar-integrated free-space
... At this point it is interesting to note that some important trends in photonics in the past decade are quite favorable for planar integration. For example, under system aspects semiconductor light sources that emit perpendicularly to the chip surface are desirable; vertical-cavity surface-emitting l ...
... At this point it is interesting to note that some important trends in photonics in the past decade are quite favorable for planar integration. For example, under system aspects semiconductor light sources that emit perpendicularly to the chip surface are desirable; vertical-cavity surface-emitting l ...
Refractive Indices, Order Parameter and Optical Transmittance
... a molecule. Macroscopic order parameter (Q) as determined by different properties differs among them and also differs from microscopic order parameter because the effect of the local field is different on different properties [4–7, 9]. Several methods for the determination of the order parameter hav ...
... a molecule. Macroscopic order parameter (Q) as determined by different properties differs among them and also differs from microscopic order parameter because the effect of the local field is different on different properties [4–7, 9]. Several methods for the determination of the order parameter hav ...
Nonlinear optical properties of nanocomposite materials
... of incidence, the nonlinear phase experienced by the incident light beam. The phase shift was measured using the induced focusing technique [8]. For s-polarized light, the measured phase shift was found to decrease uniformly with the angle of incidence. This behaviour occurs because the light intens ...
... of incidence, the nonlinear phase experienced by the incident light beam. The phase shift was measured using the induced focusing technique [8]. For s-polarized light, the measured phase shift was found to decrease uniformly with the angle of incidence. This behaviour occurs because the light intens ...
Physics and Computation of Aero-Optics
... near the optical window, and atmospheric turbulence. The propagation through atmospheric turbulence has been studied extensively (Chernov 1960, Tatarski 1961) and is relatively well understood. Because of the large temporal and spatial scales associated with atmospheric turbulence, its aberrating ef ...
... near the optical window, and atmospheric turbulence. The propagation through atmospheric turbulence has been studied extensively (Chernov 1960, Tatarski 1961) and is relatively well understood. Because of the large temporal and spatial scales associated with atmospheric turbulence, its aberrating ef ...
Fluorescence Microscopy
... The above scenario applies to the absorption of single photons; each photon absorbed results in the release of a lower energy photon. However, it is also possible for an indicator to simultaneously absorb the energy from multiple photons but only emit one photon. Importantly, the energy of each of t ...
... The above scenario applies to the absorption of single photons; each photon absorbed results in the release of a lower energy photon. However, it is also possible for an indicator to simultaneously absorb the energy from multiple photons but only emit one photon. Importantly, the energy of each of t ...
chapter 6—light and telescopes
... ____ 31. Light with a wavelength of 300 nm has a lower frequency than light with a wavelength of 500 nm. ____ 32. The largest optical telescope ever constructed was a refracting telescope. ____ 33. X-rays easily penetrate Earth's atmosphere and reach the ground from space. ____ 34. Light can behave ...
... ____ 31. Light with a wavelength of 300 nm has a lower frequency than light with a wavelength of 500 nm. ____ 32. The largest optical telescope ever constructed was a refracting telescope. ____ 33. X-rays easily penetrate Earth's atmosphere and reach the ground from space. ____ 34. Light can behave ...
CHAPTER 6—LIGHT AND TELESCOPES
... ____ 31. Light with a wavelength of 300 nm has a lower frequency than light with a wavelength of 500 nm. ____ 32. The largest optical telescope ever constructed was a refracting telescope. ____ 33. X-rays easily penetrate Earth's atmosphere and reach the ground from space. ____ 34. Light can behave ...
... ____ 31. Light with a wavelength of 300 nm has a lower frequency than light with a wavelength of 500 nm. ____ 32. The largest optical telescope ever constructed was a refracting telescope. ____ 33. X-rays easily penetrate Earth's atmosphere and reach the ground from space. ____ 34. Light can behave ...
Temporal coherence characteristics of a superluminescent
... We next observe the long-scan-range interference patterns with one by one wave packets of the SLD system at various optical feedback ratios. The one by one wave packets of interference patterns are caused by the Fabry-Perot modulation of the SLD device, and the schematic diagram of the optical paths ...
... We next observe the long-scan-range interference patterns with one by one wave packets of the SLD system at various optical feedback ratios. The one by one wave packets of interference patterns are caused by the Fabry-Perot modulation of the SLD device, and the schematic diagram of the optical paths ...
Variable Incidence Angle Fluorescence Interference Contrast
... indicative of some variation in thickness arising from the etch process. The SiO2 thickness determined by ellipsometry is therefore reported to 1 nm. To narrow and vary the range of excitation uincs, the aperture diaphragm of a Nikon E800 epifluorescence microscope was replaced by a photomask that o ...
... indicative of some variation in thickness arising from the etch process. The SiO2 thickness determined by ellipsometry is therefore reported to 1 nm. To narrow and vary the range of excitation uincs, the aperture diaphragm of a Nikon E800 epifluorescence microscope was replaced by a photomask that o ...
Sample Pages
... along a line in an arbitrary direction through a volume of tissue and corresponding to the statistical mean index profile. The widths of the peaks in the actual index profile are proportional to the diameters of the elements, and their heights depend on the refractive index of each element relative ...
... along a line in an arbitrary direction through a volume of tissue and corresponding to the statistical mean index profile. The widths of the peaks in the actual index profile are proportional to the diameters of the elements, and their heights depend on the refractive index of each element relative ...
Optical aberration
.svg?width=300)
An optical aberration is a departure of the performance of an optical system from the predictions of paraxial optics. In an imaging system, it occurs when light from one point of an object does not converge into (or does not diverge from) a single point after transmission through the system. Aberrations occur because the simple paraxial theory is not a completely accurate model of the effect of an optical system on light, rather than due to flaws in the optical elements.Aberration leads to blurring of the image produced by an image-forming optical system. Makers of optical instruments need to correct optical systems to compensate for aberration.The articles on reflection, refraction and caustics discuss the general features of reflected and refracted rays.