Measurement of the dispersion of air and of refractive index
... The parameters Bi and Ci are taken from Ref. 12, and correspond to the case of dry air under standard conditions as defined therein (temperature 20 °C, pressure 100 kPa, CO2 volume fraction 0.04%). ...
... The parameters Bi and Ci are taken from Ref. 12, and correspond to the case of dry air under standard conditions as defined therein (temperature 20 °C, pressure 100 kPa, CO2 volume fraction 0.04%). ...
light and color - American Association of Physics Teachers
... 1. Light is associated only with a source or its effects. Light is not considered to exist independently in space, and hence light is not considered as "traveling." 2. An object is seen because light shines on it. Light is a necessary condition for seeing, but there is no recognition of anything tha ...
... 1. Light is associated only with a source or its effects. Light is not considered to exist independently in space, and hence light is not considered as "traveling." 2. An object is seen because light shines on it. Light is a necessary condition for seeing, but there is no recognition of anything tha ...
Superior Pointing Stability Simplifies MPE Imaging
... compensated MPE laser. But when comparing MPE lasers, it is very important to understand how the pointing is being specified. The microscope input aperture has a circular cross section, so at Coherent, we use a radial specification, i.e. 80 μrad/100 nm in any axis. That’s because with a circular ape ...
... compensated MPE laser. But when comparing MPE lasers, it is very important to understand how the pointing is being specified. The microscope input aperture has a circular cross section, so at Coherent, we use a radial specification, i.e. 80 μrad/100 nm in any axis. That’s because with a circular ape ...
Our single crystal CVD diamond opens the way to new
... Diamond ATR prisms have opened up new application areas for FTIR spectroscopy by exploiting its unsurpassed optical transparency, chemical inertness and mechanical robustness. ...
... Diamond ATR prisms have opened up new application areas for FTIR spectroscopy by exploiting its unsurpassed optical transparency, chemical inertness and mechanical robustness. ...
2 Theoretical Concepts
... Figure 11: Intensity distribution of Hermite-Gaussian modes in the focal plane: a) 00-mode, b) 10-mode, c) 01-mode, d) 11-mode. From [Novotny and Hecht, ”Principles of Nano-Optics”] ...
... Figure 11: Intensity distribution of Hermite-Gaussian modes in the focal plane: a) 00-mode, b) 10-mode, c) 01-mode, d) 11-mode. From [Novotny and Hecht, ”Principles of Nano-Optics”] ...
Aperture averaging of the two-wavelength intensity covariance
... the bichromatic covariance function as detected by a single point detector. Baykal and Plonus13 derived the two-wavelengthstructure functions of the log amplitude and phase for two spatially separated point sources and two different observation points. They showed that the two-wavelength structure f ...
... the bichromatic covariance function as detected by a single point detector. Baykal and Plonus13 derived the two-wavelengthstructure functions of the log amplitude and phase for two spatially separated point sources and two different observation points. They showed that the two-wavelength structure f ...
Gaurav Chetna Josan - Department of Electrical Engineering
... Harmonics generation and DFM with wide tunable output in 3 9 mm, IR visualization SHG of CO2 lasers, OPO with 3 - 12 mm output SHG of CO and CO2 lasers, DFM with output in 7 - 16 mm DFM with tunable output up to 25 mm ...
... Harmonics generation and DFM with wide tunable output in 3 9 mm, IR visualization SHG of CO2 lasers, OPO with 3 - 12 mm output SHG of CO and CO2 lasers, DFM with output in 7 - 16 mm DFM with tunable output up to 25 mm ...
Understanding Microscopy And Filtering Techniques
... Although the four-component infinity-corrected digital video microscope system is simple, it offers little adaptability. If adding additional optical components into the optical plane is necessary for an application, the seven-component system is the ideal choice. The extra optical elements include ...
... Although the four-component infinity-corrected digital video microscope system is simple, it offers little adaptability. If adding additional optical components into the optical plane is necessary for an application, the seven-component system is the ideal choice. The extra optical elements include ...
Quasi Light Fields: A Model of Coherent Image Formation
... along rays. The light field is an important tool in incoherent imaging applications, where it is used to dynamically generate different viewpoints for computer graphics rendering, computational photography, and 3D displays [1–3]. Coherent imaging researchers have recognized the value of decomposing ...
... along rays. The light field is an important tool in incoherent imaging applications, where it is used to dynamically generate different viewpoints for computer graphics rendering, computational photography, and 3D displays [1–3]. Coherent imaging researchers have recognized the value of decomposing ...
Observation of PT -Symmetry Breaking in Complex Optical
... were fabricated through a multilayer Alx Ga1x As heterostructure of varying concentrations [Fig. 3(a)]. The introduction of loss in the structure was carefully done in order to maintain the even real refractive index distribution necessary for P T symmetry. This was achieved through deposition of a ...
... were fabricated through a multilayer Alx Ga1x As heterostructure of varying concentrations [Fig. 3(a)]. The introduction of loss in the structure was carefully done in order to maintain the even real refractive index distribution necessary for P T symmetry. This was achieved through deposition of a ...
Full-Text - Radioengineering
... The inner surface of the elliptic lens represents an ideal case for proper irradiation by a source antenna and therefore the lens is able to create more homogenous wave than the hyperbolic one, whose more distant parts of the inner surface can be less irradiated [8]. Since the elliptic lens can be i ...
... The inner surface of the elliptic lens represents an ideal case for proper irradiation by a source antenna and therefore the lens is able to create more homogenous wave than the hyperbolic one, whose more distant parts of the inner surface can be less irradiated [8]. Since the elliptic lens can be i ...
Nonlinear optical properties of aromatic amino acids in the
... The sample was mounted in a translation stage that moved along the beam propagation direction z, where z , 0 corresponds to locations of the sample between the focusing lens and its focal plane. By measuring the variation of the transmitted beam intensity through a circular aperture placed in front ...
... The sample was mounted in a translation stage that moved along the beam propagation direction z, where z , 0 corresponds to locations of the sample between the focusing lens and its focal plane. By measuring the variation of the transmitted beam intensity through a circular aperture placed in front ...
Optical aberration
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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.