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view pdf - Cornell University
... Expression Fig. 1. Modeled optical effects of eye apertures for fear and disgust expressions. The area of eye aperture through which light is collected was approximated as a rectangle of constant width (w) and varying eye aperture diameter (d), as shown in (a). This diameter is larger for fear (dF) ...
... Expression Fig. 1. Modeled optical effects of eye apertures for fear and disgust expressions. The area of eye aperture through which light is collected was approximated as a rectangle of constant width (w) and varying eye aperture diameter (d), as shown in (a). This diameter is larger for fear (dF) ...
Novel applications of Photonic Force Microscopy Giovanni Volpe
... potential well formed by the optical trap and a position sensing system. The analysis of the thermal motion provides information about the local forces acting on the particle. The three-dimensional probe position can be recorded through different devices, which detect the forward or backward scatter ...
... potential well formed by the optical trap and a position sensing system. The analysis of the thermal motion provides information about the local forces acting on the particle. The three-dimensional probe position can be recorded through different devices, which detect the forward or backward scatter ...
Orbital angular momentum: origins
... Strangely, the origin of OAM is easier to understand. The simplest example of a light beam carrying OAM is one with a phase in the transverse plane of φ(r, φ) = exp(i�φ), where φ is the angular coordinate and � can be any integer value, positive or negative. As shown in Fig. 2, such beams have helic ...
... Strangely, the origin of OAM is easier to understand. The simplest example of a light beam carrying OAM is one with a phase in the transverse plane of φ(r, φ) = exp(i�φ), where φ is the angular coordinate and � can be any integer value, positive or negative. As shown in Fig. 2, such beams have helic ...
Strongly interacting systems in AMO physics
... of these developments have been dedicated to control the interaction between single atoms and single photons. These have paved the way to explore strongly-interacting many-body physics in new regimes. With these new developments we can not only shed light on unanswered questions that remain in conde ...
... of these developments have been dedicated to control the interaction between single atoms and single photons. These have paved the way to explore strongly-interacting many-body physics in new regimes. With these new developments we can not only shed light on unanswered questions that remain in conde ...
Lecture 16 - EECS @ UMich
... Introduction to Optical Lithography EECS 598-002 Winter 2006 Nanophotonics and Nano-scale Fabrication P.C.Ku ...
... Introduction to Optical Lithography EECS 598-002 Winter 2006 Nanophotonics and Nano-scale Fabrication P.C.Ku ...
The measurement of rough surface topography using coherence
... The purpose of this guide is to describe good practice for the measurement and characterisation of rough surface topography using coherence scanning interferometry (commonly referred to as vertical scanning white light interferometry). This guide is aimed at users of coherence scanning interferometr ...
... The purpose of this guide is to describe good practice for the measurement and characterisation of rough surface topography using coherence scanning interferometry (commonly referred to as vertical scanning white light interferometry). This guide is aimed at users of coherence scanning interferometr ...
Quantitative reflection spectroscopy at the human ocular fundus
... experimental conditions do not fit the requirements of the theory: the scattering in the ocular fundus tissues is neither isotropic, nor is a diffuse illumination possible at the fundus in situ. Due to the transparency of the cornea, the aqueous humor, the lens and the vitreous, the propagation of l ...
... experimental conditions do not fit the requirements of the theory: the scattering in the ocular fundus tissues is neither isotropic, nor is a diffuse illumination possible at the fundus in situ. Due to the transparency of the cornea, the aqueous humor, the lens and the vitreous, the propagation of l ...
[pdf]
... where finite difference methods are used are performed in this case to verify the analytic solutions. The analytic solutions reveal the explicit dependence of fluorescent diffusive waves on the fluorophore concentration, the lifetime, as well as the optical properties of the medium. In Section 3 the ...
... where finite difference methods are used are performed in this case to verify the analytic solutions. The analytic solutions reveal the explicit dependence of fluorescent diffusive waves on the fluorophore concentration, the lifetime, as well as the optical properties of the medium. In Section 3 the ...
full text pdf
... wavelength. The bandwidth is up to the 400 nm. In the nine−core fibre, d2 is the crucial parameter and it affects the coupling characteristics. Next, we analyse the effect of the d2 on the properties of the wavelength selective couplers. When a Gaussian beam is launched into the cen− tral core and p ...
... wavelength. The bandwidth is up to the 400 nm. In the nine−core fibre, d2 is the crucial parameter and it affects the coupling characteristics. Next, we analyse the effect of the d2 on the properties of the wavelength selective couplers. When a Gaussian beam is launched into the cen− tral core and p ...
Photonic Crystals - Materials Computation Center
... interact resonantly with radiation with wavelengths comparable to the periodicity length of the dielectric lattice. dispersion relation strongly depends on frequency and propagation direction may present complete band gaps Photonic Band Gap (PBG) materials. ...
... interact resonantly with radiation with wavelengths comparable to the periodicity length of the dielectric lattice. dispersion relation strongly depends on frequency and propagation direction may present complete band gaps Photonic Band Gap (PBG) materials. ...
Document
... cylindrical lens with focal length f oriented in the y direction. The cylindrical lens has focal length f for rays in the y-z plane, and no focusing power for rays in the xz plane. ...
... cylindrical lens with focal length f oriented in the y direction. The cylindrical lens has focal length f for rays in the y-z plane, and no focusing power for rays in the xz plane. ...
Introduction to Fiber Optic Sensing
... points, distributed FOS can provide a profile between critical points, which allows engineers to obtain precise measurements of full strain fields, load distributions, temperature distributions, and other parameters. Both scattering and FBGs use various demodulation techniques. Wavelength division m ...
... points, distributed FOS can provide a profile between critical points, which allows engineers to obtain precise measurements of full strain fields, load distributions, temperature distributions, and other parameters. Both scattering and FBGs use various demodulation techniques. Wavelength division m ...
Evaluation of impact of computer usage on various tear parameters
... joining the TMH and area within the plotted line was TMA as shown in Figure 1C. Cross-sectional OCT images of lower tear meniscus, TMH and TMA were processed and calculated with integrated analysis custom software in µm and mm2 respectively. Statistical analysis Data were initially entered into an e ...
... joining the TMH and area within the plotted line was TMA as shown in Figure 1C. Cross-sectional OCT images of lower tear meniscus, TMH and TMA were processed and calculated with integrated analysis custom software in µm and mm2 respectively. Statistical analysis Data were initially entered into an e ...
Effective Area of Optical Fibres
... All nonlinear effects are dependent upon the intensity of the electromagnetic field in the medium. However, it is the total optical power entering and leaving the fibre that is usually measured. Some method is required for converting between the two when comparing theoretical and experimental result ...
... All nonlinear effects are dependent upon the intensity of the electromagnetic field in the medium. However, it is the total optical power entering and leaving the fibre that is usually measured. Some method is required for converting between the two when comparing theoretical and experimental result ...
Holographic methods for phase microscopic objects study
... methods for digital image processing. The first digital holographic interference microscope (DHIM) which allows the real-time 3D imaging of phase microscopic objects and measurements of their geometrical parameters has been created on the base of the holographic interference microscope [11, 12]. The ...
... methods for digital image processing. The first digital holographic interference microscope (DHIM) which allows the real-time 3D imaging of phase microscopic objects and measurements of their geometrical parameters has been created on the base of the holographic interference microscope [11, 12]. The ...
table of content - Photonics North
... Plasmonic, hybrid plasmonics, and artificial media High Power Laser technology, ultrafast optics and applications We are fortunate to have a large group of experts (including your colleagues and friends) coming together in a venue that is conducive to fostering new ideas and integrating innovative c ...
... Plasmonic, hybrid plasmonics, and artificial media High Power Laser technology, ultrafast optics and applications We are fortunate to have a large group of experts (including your colleagues and friends) coming together in a venue that is conducive to fostering new ideas and integrating innovative c ...
Central corneal thickness measurement with the Pentacam
... and cornea-to-anterior chamber interfaces, the measurement beam is reflected from the anterior and posterior corneal surfaces. These reflections reach back into the detector only when the LED beam strikes the corneal front and back surfaces perpendicularly. Only in the case of perpendicular incidenc ...
... and cornea-to-anterior chamber interfaces, the measurement beam is reflected from the anterior and posterior corneal surfaces. These reflections reach back into the detector only when the LED beam strikes the corneal front and back surfaces perpendicularly. Only in the case of perpendicular incidenc ...
Ultrashort free-carrier lifetime in low-loss silicon
... and lasers,” Appl. Phys. Lett. 87(26), 261108 (2005). ...
... and lasers,” Appl. Phys. Lett. 87(26), 261108 (2005). ...
CV Kristina Irsch 2014 - Johns Hopkins Medicine
... American Association for Pediatric Ophthalmology and Strabismus 2013; 17(5): 471476. 11. Muthusamy B, Irsch K, Chang HP, Guyton DL. The sensitivity of the Bielschowsky head tilt test in diagnosing acquired bilateral superior oblique paresis. American Journal of Ophthalmology 2014 Jan 9; doi: 10.1016 ...
... American Association for Pediatric Ophthalmology and Strabismus 2013; 17(5): 471476. 11. Muthusamy B, Irsch K, Chang HP, Guyton DL. The sensitivity of the Bielschowsky head tilt test in diagnosing acquired bilateral superior oblique paresis. American Journal of Ophthalmology 2014 Jan 9; doi: 10.1016 ...
Controlled Variables: Psychology as the Center Fielder Views It
... might look like from the fielder's perspective. From the observer's perspective, fly ball catching looks like a pattern of running movements that bring the fielder to the spot where the ball lands. From the fielder's perspective, according to Chapman, fly ball catching looks like a ball that is risi ...
... might look like from the fielder's perspective. From the observer's perspective, fly ball catching looks like a pattern of running movements that bring the fielder to the spot where the ball lands. From the fielder's perspective, according to Chapman, fly ball catching looks like a ball that is risi ...
electromagnetically induced transparency - IAP TU
... the state of maximal coherence, that is, maximal polarization, by EIT. The uniquely high conversion efficiency arises since the nonlinear terms become equal in magnitude to the linear terms. Besides applications in dense gas phase media with thermal velocity distribution, large optical nonlinearitie ...
... the state of maximal coherence, that is, maximal polarization, by EIT. The uniquely high conversion efficiency arises since the nonlinear terms become equal in magnitude to the linear terms. Besides applications in dense gas phase media with thermal velocity distribution, large optical nonlinearitie ...
Soliton collision and Raman gain regimes in continuous
... mechanisms, which broaden the spectrum of the light into a so-called supercontinuum (SC) as it propagates through the medium. Photonic crystal fibers (PCFs) are often used as the nonlinear medium, not only because the silica core confining the light can be made very small, thus increasing the intens ...
... mechanisms, which broaden the spectrum of the light into a so-called supercontinuum (SC) as it propagates through the medium. Photonic crystal fibers (PCFs) are often used as the nonlinear medium, not only because the silica core confining the light can be made very small, thus increasing the intens ...
the Quantifying Scatter PDF
... Of course all scatter measurements are integrations over a detector collection aperture, but the TIS designation is reserved for situations where the attempt is to gather as much scattered light as possible, while “angle resolved” designs are created to gain information from the distribution of the ...
... Of course all scatter measurements are integrations over a detector collection aperture, but the TIS designation is reserved for situations where the attempt is to gather as much scattered light as possible, while “angle resolved” designs are created to gain information from the distribution of the ...
2001 - Institute of Applied Physics - Friedrich-Schiller
... optical properties. A disadvantage of refractive elements is, that their profile depth depends on the beam diameter and the deflection angle, which we need to achieve the desired intensity distribution. It is easy to see that the profile depth of a refractive beam shaping element increases when the ...
... optical properties. A disadvantage of refractive elements is, that their profile depth depends on the beam diameter and the deflection angle, which we need to achieve the desired intensity distribution. It is easy to see that the profile depth of a refractive beam shaping element increases when the ...
Terahertz radar cross section measurements
... The 800 nm probe beam is directed through a small hole in the center of off-axis parabolic mirror for collinear detection. A computer-controlled delay stage is used to map the temporal THz pulse shape. The electric field of the THz transients is detected by free-space electrooptic sampling [12–16] i ...
... The 800 nm probe beam is directed through a small hole in the center of off-axis parabolic mirror for collinear detection. A computer-controlled delay stage is used to map the temporal THz pulse shape. The electric field of the THz transients is detected by free-space electrooptic sampling [12–16] i ...
Optical coherence tomography
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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.