The optics and performance of dual-focus fluorescence correlation
... diffusion coefficient. Recently, several modifications of FCS have been proposed and successfully implemented that aim at overcoming this problem. Among them are z-scan FCS [6,7], a method allowing for exact and absolute diffusion measurements in membranes, and line-scan FCS [8,9], combining spatial ...
... diffusion coefficient. Recently, several modifications of FCS have been proposed and successfully implemented that aim at overcoming this problem. Among them are z-scan FCS [6,7], a method allowing for exact and absolute diffusion measurements in membranes, and line-scan FCS [8,9], combining spatial ...
Scientific Program - Instituto de Física Facultad de Ciencias
... O. Ushakov, H-J. Wünsche, F. Henneberger, I.A. Khovanov, L. SchimanskyGeier, and M. Zaks, Phys. Rev. Lett. ...
... O. Ushakov, H-J. Wünsche, F. Henneberger, I.A. Khovanov, L. SchimanskyGeier, and M. Zaks, Phys. Rev. Lett. ...
The Biology and Pathology of the Visual System
... LOCATION: Farrell Learning & Teaching Center - FLTC 301 This multidisciplinary course is organized by the Department of Ophthalmology & Visual Sciences to provide a thorough introduction to the biology of major ocular compartments and their associated pathologies. Starting from the front to the back ...
... LOCATION: Farrell Learning & Teaching Center - FLTC 301 This multidisciplinary course is organized by the Department of Ophthalmology & Visual Sciences to provide a thorough introduction to the biology of major ocular compartments and their associated pathologies. Starting from the front to the back ...
Measuring Human Chromosomes using Confocal microscopy
... suggestions for further studies are introduced in chapter 5. ...
... suggestions for further studies are introduced in chapter 5. ...
Stabler, Graham (2005) High resolution wide field surface plasmon
... material is very short and the materials effect on the amplitude and phase of the light, small. This is especially so for the case of film thicknesses of less than the optical wavelength. The refractive index is often the only factor that provides sufficient sensitivity to distinguish between materi ...
... material is very short and the materials effect on the amplitude and phase of the light, small. This is especially so for the case of film thicknesses of less than the optical wavelength. The refractive index is often the only factor that provides sufficient sensitivity to distinguish between materi ...
Transversal ultrasonic probe
... Ultrasonic testing of solid materials may require probing very small areas of a material. This can be done by coupling flat ultrasonic shear wave transducers to conical tips1. In many cases implying simultaneous detection of shear and longitudinal components, it can be very difficult to detect selec ...
... Ultrasonic testing of solid materials may require probing very small areas of a material. This can be done by coupling flat ultrasonic shear wave transducers to conical tips1. In many cases implying simultaneous detection of shear and longitudinal components, it can be very difficult to detect selec ...
Imaging of Orbital Trauma1
... Posttraumatic bleeding into the anterior chamber, or traumatic hyphema, is caused by the disruption of blood vessels in the iris or ciliary body. The blood extravasates into the anterior chamber, where a blood-fluid level is usually readily appreciated at clinical examination (Fig 3). CT images may ...
... Posttraumatic bleeding into the anterior chamber, or traumatic hyphema, is caused by the disruption of blood vessels in the iris or ciliary body. The blood extravasates into the anterior chamber, where a blood-fluid level is usually readily appreciated at clinical examination (Fig 3). CT images may ...
Photonic Devices I Purpose of the Lab
... When the period of the corrugations is a multiple of the wavelength of the incident light, constructive interference between reflections occurs and a portion of the light is reflected. Other wavelengths destructively interfere and therefore cannot be reflected. The effect is strongest when the perio ...
... When the period of the corrugations is a multiple of the wavelength of the incident light, constructive interference between reflections occurs and a portion of the light is reflected. Other wavelengths destructively interfere and therefore cannot be reflected. The effect is strongest when the perio ...
Generating Single Photons on Demand I Vladan Vuletic
... expense of a much reduced signal transmission rate. Quantum encryption at high rate, as well as over distances exceeding the absorption length of optical fibers1, can be accomplished with a single-photon source, i.e., a light source that generates exactly one photon per pulse. In order to generate a ...
... expense of a much reduced signal transmission rate. Quantum encryption at high rate, as well as over distances exceeding the absorption length of optical fibers1, can be accomplished with a single-photon source, i.e., a light source that generates exactly one photon per pulse. In order to generate a ...
Experimental demonstration of near-infrared
... when the frequency approaches the plasma frequency. Since noble metals exhibit plasma frequencies in the ultraviolet region, inclusions of noble metals can be embedded in a dielectric host medium to synthesize ENZ materials at visible or near-infrared frequencies, based on the effective medium theor ...
... when the frequency approaches the plasma frequency. Since noble metals exhibit plasma frequencies in the ultraviolet region, inclusions of noble metals can be embedded in a dielectric host medium to synthesize ENZ materials at visible or near-infrared frequencies, based on the effective medium theor ...
Interferometer design for writing Bragg gratings in optical fibers
... The phase mask is most often a 12.5 X 25.4 mm rectangle. A phase mask holder allows for an adjustment θ z using a fine screw and a flexure. This is a critical adjustment but it need only be made when a phase mask has been replaced. The x and y positions are not critical. The z of focus motion is con ...
... The phase mask is most often a 12.5 X 25.4 mm rectangle. A phase mask holder allows for an adjustment θ z using a fine screw and a flexure. This is a critical adjustment but it need only be made when a phase mask has been replaced. The x and y positions are not critical. The z of focus motion is con ...
Enkeltmolekylstudier av proteiner som bidrar til - Innsida
... (Peak Force Quantitative Nanomechanical Mapping) as mode for using atomic force microscopy. This mode, different from more conventional known ones such as contact, non-contact or tapping mode, potentially allows correlations between the morphological features (height variations) and the resulting me ...
... (Peak Force Quantitative Nanomechanical Mapping) as mode for using atomic force microscopy. This mode, different from more conventional known ones such as contact, non-contact or tapping mode, potentially allows correlations between the morphological features (height variations) and the resulting me ...
Components of Optical Networks
... sources for EDFA and Raman amplification (higher power is required). Semiconductor lasers are the most commonly used, essentially they are semiconductor optical amplifiers with positive feedback (very effective and efficient). Erbium lasers are EDFAs positively fed back but need pumping source (semi ...
... sources for EDFA and Raman amplification (higher power is required). Semiconductor lasers are the most commonly used, essentially they are semiconductor optical amplifiers with positive feedback (very effective and efficient). Erbium lasers are EDFAs positively fed back but need pumping source (semi ...
4.1 Simulated Emission and Photon Amplification
... Δv = 2-5GHz for many gas lasers, He-Ne laser ~0.02 Å Fig. 4.8 Full width at half maximum linewidth (FWHM) ...
... Δv = 2-5GHz for many gas lasers, He-Ne laser ~0.02 Å Fig. 4.8 Full width at half maximum linewidth (FWHM) ...
Total Internal Reflection Fluorescence
... beam diameters, it may be useful to first expand or contract one or more of the individual beams with a telescope lens system. In addition, beam shutters can be added to individual laser lines for selection of specific excitation wavelength(s) during experiments. Depending on space constraints it ma ...
... beam diameters, it may be useful to first expand or contract one or more of the individual beams with a telescope lens system. In addition, beam shutters can be added to individual laser lines for selection of specific excitation wavelength(s) during experiments. Depending on space constraints it ma ...
Standing-wave transform spectrometer based on integrated MEMS
... standard Fourier transform response, as long as the response of the spectrometer is linear in the signal; other forms of linear transform are usable. In the present spectrometer, this means that mirror scan need not be linear in time, allowing the use of a sinusoidal mirror scan. For the same reason ...
... standard Fourier transform response, as long as the response of the spectrometer is linear in the signal; other forms of linear transform are usable. In the present spectrometer, this means that mirror scan need not be linear in time, allowing the use of a sinusoidal mirror scan. For the same reason ...
Sub-THz Electron Spin Resonance spectroscopy based on a Martin
... DPPH — an organic ESR standard. The organic chemical compound DPPH is a dark-blue stable freeradical, which provides one unpaired electron in the central nitrogen ion of every molecule, and is established to benchmark the position and intensity of ESR setups.[59] Recent studies tested this radical a ...
... DPPH — an organic ESR standard. The organic chemical compound DPPH is a dark-blue stable freeradical, which provides one unpaired electron in the central nitrogen ion of every molecule, and is established to benchmark the position and intensity of ESR setups.[59] Recent studies tested this radical a ...
HOLOGRAM(REFLECTION)
... while rotating the hologram. Move your head up and down and note the color variation. Experimental Setup To make a hologram, a laser beam is split into two beams, one that directly illuminates the film (the reference beam) and another that illuminates the object (the object beam). Since the referenc ...
... while rotating the hologram. Move your head up and down and note the color variation. Experimental Setup To make a hologram, a laser beam is split into two beams, one that directly illuminates the film (the reference beam) and another that illuminates the object (the object beam). Since the referenc ...
Diffraction is…
... screen at a time. In this case, the photon would seem to pass through only one slit at a time, yielding a one-slit pattern. Which pattern occurs? Possible Fraunhofer diffraction patterns ...
... screen at a time. In this case, the photon would seem to pass through only one slit at a time, yielding a one-slit pattern. Which pattern occurs? Possible Fraunhofer diffraction patterns ...
Tapered Fiber Fabrication
... in the cavity in a process known as dynamic back-action, which is caused by momentum transfer. This process can result in either amplification or cooling (damping) of the system: amplification when power flows from the optical to the mechanical mode and cooling when power flows from the mechanical m ...
... in the cavity in a process known as dynamic back-action, which is caused by momentum transfer. This process can result in either amplification or cooling (damping) of the system: amplification when power flows from the optical to the mechanical mode and cooling when power flows from the mechanical m ...
ap physics b
... symbolized with the Greek letter, lambda, λ. It is measured in units of length. • Frequency: The number of waves per unit time. The symbol for frequency is “f” unless it is electromagnetic frequency. In that case, it is the Greek letter, nu, which looks like ν or c. Frequency is measured in hertz (H ...
... symbolized with the Greek letter, lambda, λ. It is measured in units of length. • Frequency: The number of waves per unit time. The symbol for frequency is “f” unless it is electromagnetic frequency. In that case, it is the Greek letter, nu, which looks like ν or c. Frequency is measured in hertz (H ...
Comparison of Control Algorithms for a MEMS
... earth’s atmosphere degrades the image quality of groundbased telescopes, aberrations due to the eye’s optical imperfections degrade image quality making it difficult for clinicians and scientists to observe microscopic structures of the retina. Adaptive optics (AO) aims to remove most of these degra ...
... earth’s atmosphere degrades the image quality of groundbased telescopes, aberrations due to the eye’s optical imperfections degrade image quality making it difficult for clinicians and scientists to observe microscopic structures of the retina. Adaptive optics (AO) aims to remove most of these degra ...
3d optical data storage
... As an example, a prototypical 3D optical data storage system may use a disk that looks much like a transparent DVD. The disc contains many layers of information, each at a different depth in the media and each consisting of a DVD-like spiral track. In order to record information on the disc a laser ...
... As an example, a prototypical 3D optical data storage system may use a disk that looks much like a transparent DVD. The disc contains many layers of information, each at a different depth in the media and each consisting of a DVD-like spiral track. In order to record information on the disc a laser ...
Imaging and Measurement of Thermal Lensing in Glass
... laser. This means that the laser is a continuous, typically monochromatic wave, i.e. only one wavelength. There is another type of laser which can run as a CW laser and can emit multiple wavelengths in pulses. This type of laser is known as a laser oscillator. In this case, the lasing medium will am ...
... laser. This means that the laser is a continuous, typically monochromatic wave, i.e. only one wavelength. There is another type of laser which can run as a CW laser and can emit multiple wavelengths in pulses. This type of laser is known as a laser oscillator. In this case, the lasing medium will am ...
Optical coherence tomography
Optical coherence tomography (OCT) is an established medical imaging technique that uses light to capture micrometer-resolution, three-dimensional images from within optical scattering media (e.g., biological tissue). Optical coherence tomography is based on low-coherence interferometry, typically employing near-infrared light. The use of relatively long wavelength light allows it to penetrate into the scattering medium. Confocal microscopy, another optical technique, typically penetrates less deeply into the sample but with higher resolution.Depending on the properties of the light source (superluminescent diodes, ultrashort pulsed lasers, and supercontinuum lasers have been employed), optical coherence tomography has achieved sub- micrometer resolution (with very wide-spectrum sources emitting over a ~100 nm wavelength range).Optical coherence tomography is one of a class of optical tomographic techniques. A relatively recent implementation of optical coherence tomography, frequency-domain optical coherence tomography, provides advantages in signal-to-noise ratio, permitting faster signal acquisition. Commercially available optical coherence tomography systems are employed in diverse applications, including art conservation and diagnostic medicine, notably in ophthalmology and optometry where it can be used to obtain detailed images from within the retina. Recently it has also begun to be used in interventional cardiology to help diagnose coronary artery disease. It has also shown promise in dermatology to improve the diagnostic process.