Introduction - Research
... unfavorable method because it forces cells to contract at a set length, which maybe more or less than the contraction range of the individual cell. Our design team, with the help of Dr. Franz Baudenbacher and several graduate students, is hoping to develop a less complicated and more accurate method ...
... unfavorable method because it forces cells to contract at a set length, which maybe more or less than the contraction range of the individual cell. Our design team, with the help of Dr. Franz Baudenbacher and several graduate students, is hoping to develop a less complicated and more accurate method ...
- sfo
... leads to a strong optical frequency chirp (resonant chirp). This effect is an intrinsic behavior in current modulated lasers. With standard optical fiber, at 1550 nm, a chirp-less source is required to achieve bit rates higher than 10 Gb/s. It is expected that fast and chirp-less modulation could be ...
... leads to a strong optical frequency chirp (resonant chirp). This effect is an intrinsic behavior in current modulated lasers. With standard optical fiber, at 1550 nm, a chirp-less source is required to achieve bit rates higher than 10 Gb/s. It is expected that fast and chirp-less modulation could be ...
Macular Pigment Optical Density in Healthy Eyes of Filipino Adults
... and reported back on the validity of the results. There were three possible interpretations of data quality: Green: accept – data quality within acceptable limits; Red: reject – data quality not within acceptable limits, retest; Orange: caution – accept score with caution, advice retest to improve a ...
... and reported back on the validity of the results. There were three possible interpretations of data quality: Green: accept – data quality within acceptable limits; Red: reject – data quality not within acceptable limits, retest; Orange: caution – accept score with caution, advice retest to improve a ...
DESIGN AND CONSTRUCTION OF AN INTERFEROMETER SYSTEM FOR THE STUDY OF
... The cell phones and tablets out now would not be available without the help of thin metal films. Furthermore these films can serve thermal, mechanical, magnetic, chemical, and biological functions; the possibilities of these films are virtually endless [1]. When a thin metal film is deposited, its m ...
... The cell phones and tablets out now would not be available without the help of thin metal films. Furthermore these films can serve thermal, mechanical, magnetic, chemical, and biological functions; the possibilities of these films are virtually endless [1]. When a thin metal film is deposited, its m ...
a spectral performance model for the
... The Mid-Infrared Instrument (MIRI)9 for the JWST is a thermal-infrared imager and spectrometer currently being developed by an international consortium comprising the a consortium of European partners, the European Space Agency, the Jet Propulsion Laboratory, and an international science team. The s ...
... The Mid-Infrared Instrument (MIRI)9 for the JWST is a thermal-infrared imager and spectrometer currently being developed by an international consortium comprising the a consortium of European partners, the European Space Agency, the Jet Propulsion Laboratory, and an international science team. The s ...
Optical and evaporative cooling of cesium atoms in the gravito
... The optical cooling process is based on inelastic reflections of the repeatedly bouncing cesium atoms from the evanescent wave [14, 16]. In the great majority of the bounces the atoms are coherently reflected in the lower hyperfine state (F =3) without any dissipation of kinetic energy or heating. H ...
... The optical cooling process is based on inelastic reflections of the repeatedly bouncing cesium atoms from the evanescent wave [14, 16]. In the great majority of the bounces the atoms are coherently reflected in the lower hyperfine state (F =3) without any dissipation of kinetic energy or heating. H ...
physical optics - Sakshi Education
... sources where as in Fresnel’s biprism two virtual images of same original source are used as two coherent sources. 31. In Lloyd’s one original source and its image are used as coherent sources. Interference of light : 32. When two light waves of nearly same amplitude, same frequency and traveling in ...
... sources where as in Fresnel’s biprism two virtual images of same original source are used as two coherent sources. 31. In Lloyd’s one original source and its image are used as coherent sources. Interference of light : 32. When two light waves of nearly same amplitude, same frequency and traveling in ...
Precision interferometer
... not designed for actual component testing in the Twyman-Green mode. It is intended only to provide a simple introduction to this important application of interferometry. ...
... not designed for actual component testing in the Twyman-Green mode. It is intended only to provide a simple introduction to this important application of interferometry. ...
Fiber-optic ring-down spectroscopy using a tunable picosecond gain-switched diode laser Applied Physics B
... cavity modes are always simultaneously excited. In the case of such a “pseudo-continuous” mode structure, fast intensity modulation of a cw-laser and measurement of the phase difference between the light entering and exiting the cavity presents an alternative way to use inexpensive cw-lasers [23, 24 ...
... cavity modes are always simultaneously excited. In the case of such a “pseudo-continuous” mode structure, fast intensity modulation of a cw-laser and measurement of the phase difference between the light entering and exiting the cavity presents an alternative way to use inexpensive cw-lasers [23, 24 ...
Rank-order and morphological enhancement of image details with
... deflector for slices and a structuring element. In this experiment a gray-scale image of 48 3 48 pixels with 16 gray levels was processed in real time. In another hybrid morphological processor the real-time programmable processing of limited-size images was presented.12 A binary input image and a s ...
... deflector for slices and a structuring element. In this experiment a gray-scale image of 48 3 48 pixels with 16 gray levels was processed in real time. In another hybrid morphological processor the real-time programmable processing of limited-size images was presented.12 A binary input image and a s ...
Fabrication of Surface Plasmon Resonators by Nanoskiving Single
... To compare the morphology and optical properties of single-crystalline nanowires produced by nanoskiving with those of polycrystalline nanowires, we fabricated polycrystalline nanowires by a three-step process: (i) patterning 5-µmwide gold lines on an epoxy substrate by electron-beam evaporation and ...
... To compare the morphology and optical properties of single-crystalline nanowires produced by nanoskiving with those of polycrystalline nanowires, we fabricated polycrystalline nanowires by a three-step process: (i) patterning 5-µmwide gold lines on an epoxy substrate by electron-beam evaporation and ...
INFLUENCE OF OPTICAL PROPERTIES AND FIBERSEPARATION ON LASER DOPPLER FLOWMETRY
... different optical properties. These pieces were located at the same radial distance from the centre of the tissue phantom, with an offset of 90°. All together, the static layers were arranged in a way that resulted in four different stacks of static structures, each with the same optical properties. ...
... different optical properties. These pieces were located at the same radial distance from the centre of the tissue phantom, with an offset of 90°. All together, the static layers were arranged in a way that resulted in four different stacks of static structures, each with the same optical properties. ...
... modulators have been demonstrated, they require large device footprints of the order of millimeters as a result of weak non-linear electro-optical properties. The modulation strength can be increased by deploying a high-Q resonator, however with the trade-off of significantly sacrificing bandwidth. ...
Optical Fibres in Communications
... single mode wave guide with its large and fully definable bandwidth characteristics is an obvious candidate for long distance, high capacity transmission applications. ...
... single mode wave guide with its large and fully definable bandwidth characteristics is an obvious candidate for long distance, high capacity transmission applications. ...
Introduction - Atto Second Physics
... According to the most widely accepted definition, the range of optical waves comprises three bands (Fig. III-2): ultraviolet (10 to 400 nm), the shortest wavelength region of which is also referred to as extreme ultraviolet, visible (400 to 800 nm) and infrared (800 nm to 1 mm). ...
... According to the most widely accepted definition, the range of optical waves comprises three bands (Fig. III-2): ultraviolet (10 to 400 nm), the shortest wavelength region of which is also referred to as extreme ultraviolet, visible (400 to 800 nm) and infrared (800 nm to 1 mm). ...
Luminescence properties of a Fibonacci photonic
... refractive index, which demonstrated a plethora of novel effects such as Anderson localization, coherent back scattering, optical Hall Effect, among others. At the same time, very little is known about propagation of light in media with deterministic and yet nonperiodic spatial profile of refractive ...
... refractive index, which demonstrated a plethora of novel effects such as Anderson localization, coherent back scattering, optical Hall Effect, among others. At the same time, very little is known about propagation of light in media with deterministic and yet nonperiodic spatial profile of refractive ...
The Relationship Between the Difference in Prismatic Refractive
... some firms have imposed an obligation on their employees to permanently wear protective spectacles, often irrespectively of the type of work. This is a consequence of the fact that values of the highest permissible intensity of hazardous agents for chips from solid materials have not been establishe ...
... some firms have imposed an obligation on their employees to permanently wear protective spectacles, often irrespectively of the type of work. This is a consequence of the fact that values of the highest permissible intensity of hazardous agents for chips from solid materials have not been establishe ...
Chapter 3 - Optoelectronics Research Centre
... white light source, and observing it under a microscope, or by coupling in laser light and observing the radiation pattern on a monitor. A circularly symmetric and uniform pattern essentially implies a good cleave. To simplify the fibre end checking task, we normally just observe the cleaved end fro ...
... white light source, and observing it under a microscope, or by coupling in laser light and observing the radiation pattern on a monitor. A circularly symmetric and uniform pattern essentially implies a good cleave. To simplify the fibre end checking task, we normally just observe the cleaved end fro ...
Planar Integrated Optical Waveguide Spectroscopy
... Major developments in planar IOW spectroscopy began in the 1980s (7, 8, 10, 11). Seminal work by Swalen, Rabolt, and others demonstrated the power of WRS for measuring the vibrational spectra of submicrometer-thick polymer thin films and monolayers of molecules adsorbed to waveguide surfaces (12). F ...
... Major developments in planar IOW spectroscopy began in the 1980s (7, 8, 10, 11). Seminal work by Swalen, Rabolt, and others demonstrated the power of WRS for measuring the vibrational spectra of submicrometer-thick polymer thin films and monolayers of molecules adsorbed to waveguide surfaces (12). F ...
Magnetic hyperbolic optical metamaterials ARTICLE
... effect comes from the imaginary parts of ex, ez and my. It is known that finite material losses lead to a hybridization of propagating and evanescent modes27. Importantly, in our case for the TM polarization (see Fig. 3f), the hybridization leads to a new class of topology of isofrequency contours th ...
... effect comes from the imaginary parts of ex, ez and my. It is known that finite material losses lead to a hybridization of propagating and evanescent modes27. Importantly, in our case for the TM polarization (see Fig. 3f), the hybridization leads to a new class of topology of isofrequency contours th ...
The creation and annihilation of optical vortices using cascade
... In cascade conical diffraction, a beam propagates through a series of biaxial crystals. This process has recently been exploited in lasers with increased efficiency and novel beam shapes [14] and treated theoretically by Berry [15]. Additionally, by manipulating the polarisation state between the cr ...
... In cascade conical diffraction, a beam propagates through a series of biaxial crystals. This process has recently been exploited in lasers with increased efficiency and novel beam shapes [14] and treated theoretically by Berry [15]. Additionally, by manipulating the polarisation state between the cr ...
Yu Chen
... I would like to acknowledge the support and help from my thesis committee members. I should thank Dr. Arjun Yodh for his teaching through group seminars as well as the Optics and Laser Spectroscopy classes. His critical comments sharpened my thinking and presentation to become more concise and prec ...
... I would like to acknowledge the support and help from my thesis committee members. I should thank Dr. Arjun Yodh for his teaching through group seminars as well as the Optics and Laser Spectroscopy classes. His critical comments sharpened my thinking and presentation to become more concise and prec ...
Near-Infrared Spectroscopy
... to differentiate between light attenuation caused by skull and overlying tissues and light attenuation caused by cerebral tissue. This is called the multi-distance approach and is used in several types of spectrometer, such as spatially resolved spectroscopy and functional NIRS. In most of the NIRS ...
... to differentiate between light attenuation caused by skull and overlying tissues and light attenuation caused by cerebral tissue. This is called the multi-distance approach and is used in several types of spectrometer, such as spatially resolved spectroscopy and functional NIRS. In most of the NIRS ...
MEMS mirrors - Hamamatsu Photonics
... force) is produced, and an elastic force of the torsion bar spring is exerted in the opposite direction. The rotation of the mirror stops when these two forces balance each other. The angle of the mirror can be changed by varying the magnitude of the current flowing through the coil to control the t ...
... force) is produced, and an elastic force of the torsion bar spring is exerted in the opposite direction. The rotation of the mirror stops when these two forces balance each other. The angle of the mirror can be changed by varying the magnitude of the current flowing through the coil to control the t ...
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.