MSE 222 - UPenn School of Engineering and Applied Science
... transparency, opacity, polarizations, electronic transitions in a variety of material systems ...
... transparency, opacity, polarizations, electronic transitions in a variety of material systems ...
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... the total scattering coefficient at angles greater than 90°. This is important because light that is scattered at angles less than 90° tends to keep going in the general direction of the incident light. If the sun is directly overhead, light scattered at an angle less than 90° will continue deeper i ...
... the total scattering coefficient at angles greater than 90°. This is important because light that is scattered at angles less than 90° tends to keep going in the general direction of the incident light. If the sun is directly overhead, light scattered at an angle less than 90° will continue deeper i ...
The Optical Design of Miniaturized Microscope Objective for CARS
... (or multimodal) microscopy can visualize the sub-cellular complex structures which cannot be resolved well by single NLO microscopy. Different NLO imaging methods each have their distinctive advantages [13]: TPEF can be used to visualize proteins, ions with fluorescent labeling or specific auto-fluo ...
... (or multimodal) microscopy can visualize the sub-cellular complex structures which cannot be resolved well by single NLO microscopy. Different NLO imaging methods each have their distinctive advantages [13]: TPEF can be used to visualize proteins, ions with fluorescent labeling or specific auto-fluo ...
Baffle Design and Analysis of Stray-light in Multispectral Camera of
... determine compared to the specularly reflecting surfaces. Thus, it can not guarantee more than two bounces from a diffusely reflecting baffle before reaching the first lens of the system [3]. If the baffle has specularly reflecting surfaces, one of the criteria used for the placement of the vanes is ...
... determine compared to the specularly reflecting surfaces. Thus, it can not guarantee more than two bounces from a diffusely reflecting baffle before reaching the first lens of the system [3]. If the baffle has specularly reflecting surfaces, one of the criteria used for the placement of the vanes is ...
196.5 kB
... We have studied the changes of absorption within the spectral range 200 – 800 nm caused by illumination of the cw second harmonic generation of the Nd:YAG laser (λ = 532 nm). The measurements were done using an Ocean Optics spectrophotometer with the fiber optics detection. The illumination was done ...
... We have studied the changes of absorption within the spectral range 200 – 800 nm caused by illumination of the cw second harmonic generation of the Nd:YAG laser (λ = 532 nm). The measurements were done using an Ocean Optics spectrophotometer with the fiber optics detection. The illumination was done ...
5. GAUSSIAN BEAMS 5.1. Solution to the wave equation in
... • Not surprisingly, the frequency domain solutions for the Cartesian and spherical coordinates (Eqs. 6 and 13, respectively) look quite similar, except that the former depends on one component of the wave vector and the latter on the modulus of the wave vector. ...
... • Not surprisingly, the frequency domain solutions for the Cartesian and spherical coordinates (Eqs. 6 and 13, respectively) look quite similar, except that the former depends on one component of the wave vector and the latter on the modulus of the wave vector. ...
Low Signal Latency in Optical Fiber Networks
... Latency is the elapsed time between sending and receiving a message in an actionable form. Low latency is important whenever action on the message is time sensitive. The most common low latency application today is high frequency trading by the financial services industry where trades are initiated ...
... Latency is the elapsed time between sending and receiving a message in an actionable form. Low latency is important whenever action on the message is time sensitive. The most common low latency application today is high frequency trading by the financial services industry where trades are initiated ...
Optical tweezers
... laser beams. Levitation and two-beam traps were precursors of the optical trap Ashkin and his colleagues would develop in 1986, the optical tweezers. This optical trap used only a single, strongly focused laser beam to trap a particle in three dimensions (3D). In this set-up, a Gaussian intensity pr ...
... laser beams. Levitation and two-beam traps were precursors of the optical trap Ashkin and his colleagues would develop in 1986, the optical tweezers. This optical trap used only a single, strongly focused laser beam to trap a particle in three dimensions (3D). In this set-up, a Gaussian intensity pr ...
Research Directions
... Applying the Fourier transform to the equation, we obtain solution for a single Fourier component: ...
... Applying the Fourier transform to the equation, we obtain solution for a single Fourier component: ...
Physics 425L Optics Laboratory Chromatic Aberration
... blurred image if more than one wavelength is present. This is called chromatic aberration. Newton mistakenly thought there was no way eliminating chromatic aberration, which is what motivated him to develop the reflecting (Newtonian) telescope. € Cauchy fit n(λ) with the following empirical formula: ...
... blurred image if more than one wavelength is present. This is called chromatic aberration. Newton mistakenly thought there was no way eliminating chromatic aberration, which is what motivated him to develop the reflecting (Newtonian) telescope. € Cauchy fit n(λ) with the following empirical formula: ...
Novel methods used to test large flat mirrors
... order to analyze the wavefront. Since a flat surface has no power, it is difficult to measure unless the collimated beam from the interferometer and the reference optic are as large as the flat. For meter-class flat mirrors, the cost of this system quickly becomes prohibitive. Another issue that aff ...
... order to analyze the wavefront. Since a flat surface has no power, it is difficult to measure unless the collimated beam from the interferometer and the reference optic are as large as the flat. For meter-class flat mirrors, the cost of this system quickly becomes prohibitive. Another issue that aff ...
LEONI Fiber Optics
... technology. With glass or plastic fibers also for lighting and decoration. ■■ One common fiber bundle and several individual fiber bundles as passive light-guide channels ■■ Individual fibers made from optical glass (when transmitting visible light) or quartz (when transmitting UV/IR light) ■■ Prote ...
... technology. With glass or plastic fibers also for lighting and decoration. ■■ One common fiber bundle and several individual fiber bundles as passive light-guide channels ■■ Individual fibers made from optical glass (when transmitting visible light) or quartz (when transmitting UV/IR light) ■■ Prote ...
A historical review of optical activity phenomena - Assets
... absolute configuration is via anomalous X-ray scattering associated with the presence of a relatively heavy atom substituted into the molecule, first demonstrated by Bijvoet et al. (1951) in a study of sodium rubidium tartrate. However, many chiral molecules are not accessible to X-ray crystallography ...
... absolute configuration is via anomalous X-ray scattering associated with the presence of a relatively heavy atom substituted into the molecule, first demonstrated by Bijvoet et al. (1951) in a study of sodium rubidium tartrate. However, many chiral molecules are not accessible to X-ray crystallography ...
paper
... The goal of this experiment was to measure the delay of a long optical path in order to predict the influence of the fibre thermal dilatation on changes of the link asymmetry. 1PPS from a local clock was transmitted in both directions and using two time interval counters, the delays δAB and δBA (Fig ...
... The goal of this experiment was to measure the delay of a long optical path in order to predict the influence of the fibre thermal dilatation on changes of the link asymmetry. 1PPS from a local clock was transmitted in both directions and using two time interval counters, the delays δAB and δBA (Fig ...
lab sheet - Faculty of Engineering
... sometimes found around the edges of clouds or coronas surrounding the sun or moon. The illustration above shows how light (from either the sun or the moon) is bent around small droplets in the cloud. Optical effects resulting from diffraction are produced through the interference of light waves. To ...
... sometimes found around the edges of clouds or coronas surrounding the sun or moon. The illustration above shows how light (from either the sun or the moon) is bent around small droplets in the cloud. Optical effects resulting from diffraction are produced through the interference of light waves. To ...
MINIATURIZED FLUORESCENCE EXCITATION PLATFORM WITH OPTICAL FIBER FOR BIO-DETECTION CHIPS
... packaging methods, many bio-detection systems are able to realize “lab on a chip”. Lab on a chip provides some advantages on bio-experiments such as simple, fast multiprocessing and high accuracy [1]. There are many biodetection systems are widely studied such as electrochemical method, refractive m ...
... packaging methods, many bio-detection systems are able to realize “lab on a chip”. Lab on a chip provides some advantages on bio-experiments such as simple, fast multiprocessing and high accuracy [1]. There are many biodetection systems are widely studied such as electrochemical method, refractive m ...
Influence of Magnetic Field Inhomogeneity on a Magneto
... residual field effects. Recently several studies use optical current sensors as replacement for these established systems. Optical current sensors with mainly optical fibers do not suffer from electromagnetic interference, has light-weight and small size, and possess a low susceptibility to environm ...
... residual field effects. Recently several studies use optical current sensors as replacement for these established systems. Optical current sensors with mainly optical fibers do not suffer from electromagnetic interference, has light-weight and small size, and possess a low susceptibility to environm ...
Optical tweezers
Optical tweezers (originally called ""single-beam gradient force trap"") are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch to physically hold and move microscopic dielectric objects similar to tweezers. Optical tweezers have been particularly successful in studying a variety of biological systems in recent years.