Fiber Optic Communications
... – Ideally all angles carry equal amounts of energy. – Actual mode distribution differs due to launch conditions, coupling, and leaky modes. – Mode coupling describes how energy is transferred between modes. – Leaky modes are the highest order modes that transmit into the cladding or transmitted back ...
... – Ideally all angles carry equal amounts of energy. – Actual mode distribution differs due to launch conditions, coupling, and leaky modes. – Mode coupling describes how energy is transferred between modes. – Leaky modes are the highest order modes that transmit into the cladding or transmitted back ...
Nonlinear photoacoustic spectroscopy of hemoglobin
... signal is detected by an attached 30 MHz ultrasonic transducer (V213-BC-RM, Olympus). To measure the laser pulse energy, a small portion of the light is reflected to a pyroelectric detector (SPH-11, Spectrum Detector, Inc.), which is calibrated for a wide range of laser pulse energies (0.1–10.0 mJ) ...
... signal is detected by an attached 30 MHz ultrasonic transducer (V213-BC-RM, Olympus). To measure the laser pulse energy, a small portion of the light is reflected to a pyroelectric detector (SPH-11, Spectrum Detector, Inc.), which is calibrated for a wide range of laser pulse energies (0.1–10.0 mJ) ...
Technical Article
... In order to verify this SD-OCT sensitivity analysis, we constructed differential SS-OCT and FD-OCT systems. The SS-OCT setup is in Fig. 1(a). This differential interferometer topology allows for the cancellation of DC, excess noise, and autocorrelation terms which otherwise contaminate SD-OCT images ...
... In order to verify this SD-OCT sensitivity analysis, we constructed differential SS-OCT and FD-OCT systems. The SS-OCT setup is in Fig. 1(a). This differential interferometer topology allows for the cancellation of DC, excess noise, and autocorrelation terms which otherwise contaminate SD-OCT images ...
Measurement of the 4Pi-confocal point spread function proves 75
... by the point spread function (PSF). The extent of the PSF determines the resolution in a far-field microscope.r When no aberrations are present the PSF is determined only by the wavelength of the light in the object medium and the aperture angle of the lens. The extent of the PSF decreases with decr ...
... by the point spread function (PSF). The extent of the PSF determines the resolution in a far-field microscope.r When no aberrations are present the PSF is determined only by the wavelength of the light in the object medium and the aperture angle of the lens. The extent of the PSF decreases with decr ...
I Plasmonics gets transformed news & views
... flow of light at the nanoscale1. That is because plasmonics resolves a basic mismatch between wavelength-scale optical devices and the much smaller components of integrated electronic circuits. A wide variety of plasmonic elements have been demonstrated using metallic nanostructures, including compa ...
... flow of light at the nanoscale1. That is because plasmonics resolves a basic mismatch between wavelength-scale optical devices and the much smaller components of integrated electronic circuits. A wide variety of plasmonic elements have been demonstrated using metallic nanostructures, including compa ...
Electricity and Magnetism Experiment
... The rotation angles are to be measured for two settings: one is without magnetic field and the other with the magnetic field applied to the flint glass sample. The simplest way to do this would be, with no applied field, to set the polarizer and analyzer axes parallel, i.e. to give maximum intensity ...
... The rotation angles are to be measured for two settings: one is without magnetic field and the other with the magnetic field applied to the flint glass sample. The simplest way to do this would be, with no applied field, to set the polarizer and analyzer axes parallel, i.e. to give maximum intensity ...
Speed of Light - Lawrence University
... make certain that you don’t reflect a beam into someone else’s eyes! III. Exploration and Measurement With the laser on, identify the path of the beam through the lens, and where the beam strikes the mirror. Which will be more difficult to measure, B to D or B to M to D? Which will have a larger con ...
... make certain that you don’t reflect a beam into someone else’s eyes! III. Exploration and Measurement With the laser on, identify the path of the beam through the lens, and where the beam strikes the mirror. Which will be more difficult to measure, B to D or B to M to D? Which will have a larger con ...
Introduction to Adaptive Optics and Deformable
... Adaptive optics are used in many imaging and nonimaging applications, including 3D imaging, vision, and biomedical applications. 3D imaging uses deformable Iris AO Adaptive Optics Kit mirrors to increase depth range, creating truer 3D. In vision applications, adaptive optics are used in robotic vis ...
... Adaptive optics are used in many imaging and nonimaging applications, including 3D imaging, vision, and biomedical applications. 3D imaging uses deformable Iris AO Adaptive Optics Kit mirrors to increase depth range, creating truer 3D. In vision applications, adaptive optics are used in robotic vis ...
OPTICAL TWEEZERS: Characterization and Systems
... Agarwal since 1996 and he has been my room-mate for the last 6 years. He too is part of NDSL lab, is a very close friend and a confidant. I have almost invariably turned to him in the hour of need - be it a problem related to work or otherwise, and fortunately for me, I was never disappointed barri ...
... Agarwal since 1996 and he has been my room-mate for the last 6 years. He too is part of NDSL lab, is a very close friend and a confidant. I have almost invariably turned to him in the hour of need - be it a problem related to work or otherwise, and fortunately for me, I was never disappointed barri ...
The diffraction of light by sound waves of high
... difference between the optical lengths of A'B' and C'D' is less than that between those of AB and CD. As this difference gives twice the amplitude of the corrugation of the emerging wave-front, it follows, in the case shown in figure l(b), that the amplitude of the corrugation of the emerging wave-f ...
... difference between the optical lengths of A'B' and C'D' is less than that between those of AB and CD. As this difference gives twice the amplitude of the corrugation of the emerging wave-front, it follows, in the case shown in figure l(b), that the amplitude of the corrugation of the emerging wave-f ...
- Surrey Research Insight Open Access
... intensity. The system was highly sensitive to vibrations, and changes in observed photodiode output were seen without applied bias or X-ray irradiation. These correlate with minute changes in alignment due to the changes in optical path lengths and, potentially, light guide effects caused by the CZT ...
... intensity. The system was highly sensitive to vibrations, and changes in observed photodiode output were seen without applied bias or X-ray irradiation. These correlate with minute changes in alignment due to the changes in optical path lengths and, potentially, light guide effects caused by the CZT ...
Optical and Electron Microscopy
... the essential design of the standard instrument has not changed for over a century; an objective lens forms a magnified image of the object, which is then further magnified by the "eyepiece" lens. The product of the magnifications of objective and eyepiece gives the final magnification. Optical micr ...
... the essential design of the standard instrument has not changed for over a century; an objective lens forms a magnified image of the object, which is then further magnified by the "eyepiece" lens. The product of the magnifications of objective and eyepiece gives the final magnification. Optical micr ...
Palladium Ultra Thin Layer Profiles Evaluation by Evanescent Light
... investigate nanostructures profiles of Pd sputtered thin films in the ultra-thin thickness range of 1 - 10 nm [1]. DELI is an optical evanescent waves microscopy technique based on capturing the light extracted by nano layers deposited on a substrate which also serves as a waveguide [2,3]. The DELI ...
... investigate nanostructures profiles of Pd sputtered thin films in the ultra-thin thickness range of 1 - 10 nm [1]. DELI is an optical evanescent waves microscopy technique based on capturing the light extracted by nano layers deposited on a substrate which also serves as a waveguide [2,3]. The DELI ...
Lab 5 - College of Science | Oregon State University
... polished surface for our experiment. The ground surface on the back face serves to prevent internal reflection so that we only have one reflection. The glass disc can be mounted in many ways; one possibility is shown using a center of rotation adapter. The rotatable mount allows you to rotate the gl ...
... polished surface for our experiment. The ground surface on the back face serves to prevent internal reflection so that we only have one reflection. The glass disc can be mounted in many ways; one possibility is shown using a center of rotation adapter. The rotatable mount allows you to rotate the gl ...
OSA journals template (MSWORD)
... copper vapour lasers at 578 nm and dye lasers operating at 585 nm and 595 nm. These lasers are both bulky and inefficient and it would be attractive to develop a solid-state alternative to these lasers. One path that has been followed for the generation of yellow light is second harmonic generation ...
... copper vapour lasers at 578 nm and dye lasers operating at 585 nm and 595 nm. These lasers are both bulky and inefficient and it would be attractive to develop a solid-state alternative to these lasers. One path that has been followed for the generation of yellow light is second harmonic generation ...
Atom optics with microfabricated optical elements
... by spontaneous scattering has to be suppressed the detuning should be chosen as large as possible. It is the basic principle of the optical manipulation of atoms to create light ®elds with the appropriate intensity distribution I r at a suitable detuning. Microoptical systems are extremely well sui ...
... by spontaneous scattering has to be suppressed the detuning should be chosen as large as possible. It is the basic principle of the optical manipulation of atoms to create light ®elds with the appropriate intensity distribution I r at a suitable detuning. Microoptical systems are extremely well sui ...
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.