Optical and acoustic beam shaping for imaging and
... First, I would like to thank my supervisor, Mike MacDonald. From my first visit to Institute of Medical Science and Technology (IMSaT) in September 2010, I knew this would be where I want to perform research. Mike has been incredibly supportive as an advisor and mentor. It has been an amazing gradua ...
... First, I would like to thank my supervisor, Mike MacDonald. From my first visit to Institute of Medical Science and Technology (IMSaT) in September 2010, I knew this would be where I want to perform research. Mike has been incredibly supportive as an advisor and mentor. It has been an amazing gradua ...
Chapter 9 Notes
... A homeowner wishes to mount a floodlight on a wall of a swimming pool under water so as to provide the maximum illumination of the surface of the pool for use at night. At what angle with respect to the wall would the light be pointed? ...
... A homeowner wishes to mount a floodlight on a wall of a swimming pool under water so as to provide the maximum illumination of the surface of the pool for use at night. At what angle with respect to the wall would the light be pointed? ...
Document
... Ray path: part of light following wavepath Beam: is the many of parallel ray Wavelength: it is the distance between similar point (crest to crest)( trough to trough) Amplitude: the distance between crest to path ray A2 α T Symmetric and asymmetric waves symmetric waves: amplitude line divided wav ...
... Ray path: part of light following wavepath Beam: is the many of parallel ray Wavelength: it is the distance between similar point (crest to crest)( trough to trough) Amplitude: the distance between crest to path ray A2 α T Symmetric and asymmetric waves symmetric waves: amplitude line divided wav ...
ller cells separate between wavelengths to
... optical system of the eye onto the proximal surface of the retina1. However, the mammalian retina and the peripheral retina of humans and primates are organized in a seemingly reverse order with respect to the light path. This arrangement places the photoreceptors, responsible for light absorption2, ...
... optical system of the eye onto the proximal surface of the retina1. However, the mammalian retina and the peripheral retina of humans and primates are organized in a seemingly reverse order with respect to the light path. This arrangement places the photoreceptors, responsible for light absorption2, ...
Laser - IFISC
... The laser Doppler velocimeter sends a monochromatic laser beam toward the target and collects the reflected radiation. According to the Doppler effect, the change in wavelength of the reflected radiation is a function of the targeted object's relative velocity. Thus, the velocity of the object can b ...
... The laser Doppler velocimeter sends a monochromatic laser beam toward the target and collects the reflected radiation. According to the Doppler effect, the change in wavelength of the reflected radiation is a function of the targeted object's relative velocity. Thus, the velocity of the object can b ...
A Tunable Fabry-Perot-Interferometer for 3
... Fabry-Perot Interferometers (FPI). These efforts have been driven by the need for a tunable filter in wavelength division multiplexing of optical communications and in gas analysis in the near infrared. In some applications at 1.5 µm, for example, self-supporting indium phosphide (InP) / air gap bas ...
... Fabry-Perot Interferometers (FPI). These efforts have been driven by the need for a tunable filter in wavelength division multiplexing of optical communications and in gas analysis in the near infrared. In some applications at 1.5 µm, for example, self-supporting indium phosphide (InP) / air gap bas ...
Effect of pores on transmission properties of transparent ceramics
... Light scattering by the microstructure defects of transparent ceramics causes losses of light and has an effect on the transmission properties. Effects of pores on transmission were studied using the Mie theory. The in-line transmissions of transparent magnesium aluminate spinel were calculated as a ...
... Light scattering by the microstructure defects of transparent ceramics causes losses of light and has an effect on the transmission properties. Effects of pores on transmission were studied using the Mie theory. The in-line transmissions of transparent magnesium aluminate spinel were calculated as a ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... be calculated, the optical force and torque can be calculated. [7] The toolbox can be useful for light scattering using either Lorenz-Mie theory or the T-matrix method. The toolbox describes the scattered fields using the Tmatrix method in which, as in generalized Lorenz-Mie theory (GLMT), the incid ...
... be calculated, the optical force and torque can be calculated. [7] The toolbox can be useful for light scattering using either Lorenz-Mie theory or the T-matrix method. The toolbox describes the scattered fields using the Tmatrix method in which, as in generalized Lorenz-Mie theory (GLMT), the incid ...
Effect of TiO2 on optical properties of glasses in the soda
... 435.8 nm (violet Hg line) were recorded. The molar electronic polarizability (αm) was calculated from the refractive index of the glass according to Eq. (1), also known as the Lorentz-Lorenz equation as originally derived by Lorentz [18] and Lorenz [19]. Here, Vm is the molar volume, N is the amount ...
... 435.8 nm (violet Hg line) were recorded. The molar electronic polarizability (αm) was calculated from the refractive index of the glass according to Eq. (1), also known as the Lorentz-Lorenz equation as originally derived by Lorentz [18] and Lorenz [19]. Here, Vm is the molar volume, N is the amount ...
Q - Topcon
... Conference. I was immediately impressed by the user friendly and flexible format of the software. I have now been running i-Clarity Core in my practice for six months, and in this time it has transformed the way my practice operates. The installation of i-Clarity, staff training and subsequent sup ...
... Conference. I was immediately impressed by the user friendly and flexible format of the software. I have now been running i-Clarity Core in my practice for six months, and in this time it has transformed the way my practice operates. The installation of i-Clarity, staff training and subsequent sup ...
Compact Magnetic Antennas for Directional Excitation of Surface Plasmons Yongmin Liu, Stefano Palomba,
... plasmonic source that can efficiently generate surface plasmon polaritons (SPPs) and deliver SPPs to the region of interest is yet to be realized. Here, bridging the optical antenna theory and the recently developed concept of metamaterials, we demonstrate a subwavelength, highly efficient plasmonic sou ...
... plasmonic source that can efficiently generate surface plasmon polaritons (SPPs) and deliver SPPs to the region of interest is yet to be realized. Here, bridging the optical antenna theory and the recently developed concept of metamaterials, we demonstrate a subwavelength, highly efficient plasmonic sou ...
Originally published as “Ultrafast spin polarization in a multiferroic
... quenching in 3d electron materials, we take another spin relaxation process into account. A characteristic R is Raman coherence time, which describes a transition in a degenerate state with symmetry | to | changing the magnetic quantum number and the magnetic polarization. As shown in Fig. 2 ...
... quenching in 3d electron materials, we take another spin relaxation process into account. A characteristic R is Raman coherence time, which describes a transition in a degenerate state with symmetry | to | changing the magnetic quantum number and the magnetic polarization. As shown in Fig. 2 ...
Compact Magnetic Antennas for Directional Excitation of Surface Plasmons Yongmin Liu, Stefano Palomba,
... plasmonic source that can efficiently generate surface plasmon polaritons (SPPs) and deliver SPPs to the region of interest is yet to be realized. Here, bridging the optical antenna theory and the recently developed concept of metamaterials, we demonstrate a subwavelength, highly efficient plasmonic sou ...
... plasmonic source that can efficiently generate surface plasmon polaritons (SPPs) and deliver SPPs to the region of interest is yet to be realized. Here, bridging the optical antenna theory and the recently developed concept of metamaterials, we demonstrate a subwavelength, highly efficient plasmonic sou ...
A study on the visual illusion effects on the pupillary aperture
... diaphragms. The manner in which the ring around the aperture of the axis of the camera changes the size of the aperture controlling the amount of incoming light that traverses the instrument, is analogous to the way the iris of the eye regulates the quantity of light that enters through the cornea. ...
... diaphragms. The manner in which the ring around the aperture of the axis of the camera changes the size of the aperture controlling the amount of incoming light that traverses the instrument, is analogous to the way the iris of the eye regulates the quantity of light that enters through the cornea. ...
Application Note #552 3D Optical Microscopes Provide Key
... of the laser wavelength or approximately 160 nanometers. Structured lenses being manufactured today contain step heights greater than 160 nanometers, so Fizeau interferometers are not an appropriate metrology solution for these lenses. ...
... of the laser wavelength or approximately 160 nanometers. Structured lenses being manufactured today contain step heights greater than 160 nanometers, so Fizeau interferometers are not an appropriate metrology solution for these lenses. ...
Part 2 . Physical Optics
... where the integral goes from the source S to the observation point P , and n (s ) is the index of refraction along the path. Variations in the index or path can result in irregularities or aberrations in the wavefront. An aberrated plane wavefront is shown in Fig. 1c. Note that the wavefronts are st ...
... where the integral goes from the source S to the observation point P , and n (s ) is the index of refraction along the path. Variations in the index or path can result in irregularities or aberrations in the wavefront. An aberrated plane wavefront is shown in Fig. 1c. Note that the wavefronts are st ...
Chapter 2 - Handbook of Optics
... where the integral goes from the source S to the observation point P , and n (s ) is the index of refraction along the path. Variations in the index or path can result in irregularities or aberrations in the wavefront. An aberrated plane wavefront is shown in Fig. 1c. Note that the wavefronts are st ...
... where the integral goes from the source S to the observation point P , and n (s ) is the index of refraction along the path. Variations in the index or path can result in irregularities or aberrations in the wavefront. An aberrated plane wavefront is shown in Fig. 1c. Note that the wavefronts are st ...
Using the Spectrophotometer
... 2. To determine the Amax of the compound, each team will be assigned a range of 100 nm within the visible range of the spectrum (400nm to 700 nm). Read the absorbance of the sample every 10 nm within your team’s assigned range. You will then give your data to the TA who will compile and graph the da ...
... 2. To determine the Amax of the compound, each team will be assigned a range of 100 nm within the visible range of the spectrum (400nm to 700 nm). Read the absorbance of the sample every 10 nm within your team’s assigned range. You will then give your data to the TA who will compile and graph the da ...
CHAPTER 4 REFLECTED LIGHT OPTICS
... as a stream of particles (photons). These are not conflicting theories but rather complementary ways of describing light; in different circumstances. either one may be the more appropriate. For most aspects of microscope optics. the "classical" approach ofdescribing light as waves is more applicable ...
... as a stream of particles (photons). These are not conflicting theories but rather complementary ways of describing light; in different circumstances. either one may be the more appropriate. For most aspects of microscope optics. the "classical" approach ofdescribing light as waves is more applicable ...
Phase-only hologram generation based on integral imaging and its
... The two elemental image sets are newly generated using the estimated depth map provided in Fig. 2(b), and the CIIR images for each object’s depth are generated as shown in Figs. 3(c) and (d). Comparing this with the previous CIIR images, the undesirable part in each CIIR image due to the unfocused o ...
... The two elemental image sets are newly generated using the estimated depth map provided in Fig. 2(b), and the CIIR images for each object’s depth are generated as shown in Figs. 3(c) and (d). Comparing this with the previous CIIR images, the undesirable part in each CIIR image due to the unfocused o ...
PASSION FOR PRECISION
... shift, i.e. the splitting between the 2S1/2 and 2P1/2 states that should be degenerate according to the Dirac theory, appeared clearly resolved in the optical spectrum. This was the beginning of a long adventure in precision spectroscopy of the simple hydrogen atom, which permits unique confrontatio ...
... shift, i.e. the splitting between the 2S1/2 and 2P1/2 states that should be degenerate according to the Dirac theory, appeared clearly resolved in the optical spectrum. This was the beginning of a long adventure in precision spectroscopy of the simple hydrogen atom, which permits unique confrontatio ...
PubTeX output 2005.03.30:1333
... In the time domain, finite-difference time-domain (FDTD) algorithms [2], [4] and [6] are widely used and are the most commonly method used for PC cavities analysis. Finer discretization is required to avoid the staircase problem when curved geometries have to be modeled; additionally, short time ste ...
... In the time domain, finite-difference time-domain (FDTD) algorithms [2], [4] and [6] are widely used and are the most commonly method used for PC cavities analysis. Finer discretization is required to avoid the staircase problem when curved geometries have to be modeled; additionally, short time ste ...
Sub-mm Wave Imaging and Waveguiding
... band of the electro-magnetic spectrum with frequencies spanning from 300 GHz to 30 THz, submm waves are non-ionizing and are capable of passing through a wide range of dielectric substances making them well suited for imaging purposes such as non-destructive materials evaluation (NDE). Because of th ...
... band of the electro-magnetic spectrum with frequencies spanning from 300 GHz to 30 THz, submm waves are non-ionizing and are capable of passing through a wide range of dielectric substances making them well suited for imaging purposes such as non-destructive materials evaluation (NDE). Because of th ...
Retina Retinal Imaging
... (ROP) and Coats’ disease, as the system has a very low tolerance for any degree of media opacities. The Panoret-1000 (CMT Medical Technologies, Inc., Valley Stream, NY) was a portable, handheld fundus camera that utilized transscleral fiber optic illumination and was therefore less subject to media ...
... (ROP) and Coats’ disease, as the system has a very low tolerance for any degree of media opacities. The Panoret-1000 (CMT Medical Technologies, Inc., Valley Stream, NY) was a portable, handheld fundus camera that utilized transscleral fiber optic illumination and was therefore less subject to media ...
Two-dimensional modulational instability in photorefractive media M Saffman , Glen McCarthy
... beams in a photorefractive medium: equations (2), (3). For simplicity and comparison with the experimental conditions discussed below we only considered the frequency degenerate ( = 0) and short Debye length (α = ξ = 0) limit. We also assumed the lack of a photogalvanic effect (E ph = 0). We used a ...
... beams in a photorefractive medium: equations (2), (3). For simplicity and comparison with the experimental conditions discussed below we only considered the frequency degenerate ( = 0) and short Debye length (α = ξ = 0) limit. We also assumed the lack of a photogalvanic effect (E ph = 0). We used a ...
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.