Fiber optic devices and systems
... meter-length cladded glass fiber for image transmission. At that time, the fiber attenuation was about 1000dB/km but this did not impede its application as an endoscope because the fiber length required was only 1 meter. However, the popularity of optical fiber did not start until 1970 when scientis ...
... meter-length cladded glass fiber for image transmission. At that time, the fiber attenuation was about 1000dB/km but this did not impede its application as an endoscope because the fiber length required was only 1 meter. However, the popularity of optical fiber did not start until 1970 when scientis ...
Nonlinear Optics Third Edition
... The book in its present form contains far too much material to be covered within a conventional one-semester course. For this reason, I am often asked for advice on how to structure a course based on the content of my textbook. Some of my thoughts along these lines are as follows: (1) I have endeavo ...
... The book in its present form contains far too much material to be covered within a conventional one-semester course. For this reason, I am often asked for advice on how to structure a course based on the content of my textbook. Some of my thoughts along these lines are as follows: (1) I have endeavo ...
Label-free super-resolution imaging of adenoviruses by submerged
... Because of the small sizes of most viruses (typically 5–150 nm), standard optical microscopes, which have an optical diffraction limit of 200 nm, are not generally suitable for their direct observation. Electron microscopes usually require specimens to be placed under vacuum conditions, thus making ...
... Because of the small sizes of most viruses (typically 5–150 nm), standard optical microscopes, which have an optical diffraction limit of 200 nm, are not generally suitable for their direct observation. Electron microscopes usually require specimens to be placed under vacuum conditions, thus making ...
D12 in docx
... Therefore, the absorption spectrum develops a very narrow transmission window in the broader Lorentzian-like absorption peak associated with the transition to the excited state (see Fig. D12.4). Slow Light: Another application of the EIT is to slow the light by a large factor. At the resonance frequ ...
... Therefore, the absorption spectrum develops a very narrow transmission window in the broader Lorentzian-like absorption peak associated with the transition to the excited state (see Fig. D12.4). Slow Light: Another application of the EIT is to slow the light by a large factor. At the resonance frequ ...
Theory of optical pulse propagation, dispersive and nonlinear effects
... nonlinear phase shift. For a positive dispersion, k2 > 0, this effect smoothens the structure in Fig. IV-37 and linearises the temporal chirp, leading thereby to a better quality of the compressed pulses 2 . For a propagation length in the nonlinear medium that satisfies zNL < LD, however, Eq. (IV-1 ...
... nonlinear phase shift. For a positive dispersion, k2 > 0, this effect smoothens the structure in Fig. IV-37 and linearises the temporal chirp, leading thereby to a better quality of the compressed pulses 2 . For a propagation length in the nonlinear medium that satisfies zNL < LD, however, Eq. (IV-1 ...
Microscopes - Biozentrum
... Köhler illumination is a method of specimen illumination used in transmittedor reflected-light microscopy[1]. It was designed by August Köhler in 1893, and overcame the limitations of previous techniques of sample illumination (ie: critical illumination). Prior to the advent of Köhler illumination, ...
... Köhler illumination is a method of specimen illumination used in transmittedor reflected-light microscopy[1]. It was designed by August Köhler in 1893, and overcame the limitations of previous techniques of sample illumination (ie: critical illumination). Prior to the advent of Köhler illumination, ...
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... frequency dependence of BG has been studied lately with all-solid PCFs [12], where parameters close to what we have in optically induced lattices have been used (e.g., low refractive index contrast of 102 , large pitch up to 15 m), as opposed to the high-index contrast and small pitch typically ex ...
... frequency dependence of BG has been studied lately with all-solid PCFs [12], where parameters close to what we have in optically induced lattices have been used (e.g., low refractive index contrast of 102 , large pitch up to 15 m), as opposed to the high-index contrast and small pitch typically ex ...
Dispersion staining
The optical properties of all liquid and solid materials change as a function of the wavelength of light used to measure them. This change as a function of wavelength is called the dispersion of the optical properties. The graph created by plotting the optical property of interest by the wavelength at which it is measured is called a dispersion curve.The dispersion staining is an analytical technique used in light microscopy that takes advantage of the differences in the dispersion curve of the refractive index of an unknown material relative to a standard material with a known dispersion curve to identify or characterize that unknown material. These differences become manifest as a color when the two dispersion curves intersect for some visible wavelength. This is an optical staining technique and requires no stains or dyes to produce the color. Its primary use today is in the conformation of the presence of asbestos in construction materials but it has many other applications.