Studies of Nonlinear Femtosecond Pulse Propagation in Bulk
... Studies of nonlinear propagation are also performed in a regime where temporal pulse splitting occurs. Experimental results are compared with a three-dimensional nonlinear Schrödinger equation. This comparison fuels the development of a more complete model for pulse splitting. Experiments are also ...
... Studies of nonlinear propagation are also performed in a regime where temporal pulse splitting occurs. Experimental results are compared with a three-dimensional nonlinear Schrödinger equation. This comparison fuels the development of a more complete model for pulse splitting. Experiments are also ...
Scanning angle total internal reflection Raman spectroscopy and
... where P0 is the incident photon flux, σ Dj is the frequency independent cross section for the jth molecular vibration mode, D is the number density of scatterers, dz is the path length of the laser in the sample and all frequency terms, (ν), are expressed in wavenumbers (cm-1). A full derivation of ...
... where P0 is the incident photon flux, σ Dj is the frequency independent cross section for the jth molecular vibration mode, D is the number density of scatterers, dz is the path length of the laser in the sample and all frequency terms, (ν), are expressed in wavenumbers (cm-1). A full derivation of ...
A mis padres y mi hermana A Iván A la memoria de Alberto Serrano
... as well as environmental factors (near work, social status, occupation…). Newborn eyes show commonly hyperopic errors: the cornea and lens are steeply curved, compared with their adult values, and the focal plane is short. During postnatal development, the focal plane moves away from the cornea (Cha ...
... as well as environmental factors (near work, social status, occupation…). Newborn eyes show commonly hyperopic errors: the cornea and lens are steeply curved, compared with their adult values, and the focal plane is short. During postnatal development, the focal plane moves away from the cornea (Cha ...
Experimental Investigation of Photonic Mixer Device and
... most important measurement techniques, the 3D-ranging systems based on time-offlight (TOF) principle are nowadays intensively investigated. Despite of a large variety of 3D TOF ranging system concepts, the growing requirements in applications for 3Dvision have seldom been really satisfied. Either ad ...
... most important measurement techniques, the 3D-ranging systems based on time-offlight (TOF) principle are nowadays intensively investigated. Despite of a large variety of 3D TOF ranging system concepts, the growing requirements in applications for 3Dvision have seldom been really satisfied. Either ad ...
Get PDF - OSA Publishing
... of the transfer process. The Raman scattering measurement results are shown in Fig. 2. The spectra show three different Raman peaks in addition to the fluorescence signal from the Bionavis SPR sensor, which has been subtracted from all the shown spectra. Raman peaks located at the wavenumber of abou ...
... of the transfer process. The Raman scattering measurement results are shown in Fig. 2. The spectra show three different Raman peaks in addition to the fluorescence signal from the Bionavis SPR sensor, which has been subtracted from all the shown spectra. Raman peaks located at the wavenumber of abou ...
Correlation Between Corneal and Total Wavefront
... C8. The correlation coefficients were found to be R=0.59 and R=0.67 for the vertical coma C7 and horizontal coma C8, respectively. For both coefficients, the correlations between corneal 3rd order coma and the 3rd order coma of the total wavefront were statistically significant (P<.001). In contrast ...
... C8. The correlation coefficients were found to be R=0.59 and R=0.67 for the vertical coma C7 and horizontal coma C8, respectively. For both coefficients, the correlations between corneal 3rd order coma and the 3rd order coma of the total wavefront were statistically significant (P<.001). In contrast ...
Sunday, April 27, 2:30 PM - 4:15 PM Hall B/C
... Purpose: The purpose of this preliminary study is to investigate Fourier Domain Optical Coherence Tomography (FD OCT) as a non-invasive tool for retinal imaging in mouse models for retinal degenerative diseases. Methods: A prototype spectrometer based FD OCT system was used in combination with a cus ...
... Purpose: The purpose of this preliminary study is to investigate Fourier Domain Optical Coherence Tomography (FD OCT) as a non-invasive tool for retinal imaging in mouse models for retinal degenerative diseases. Methods: A prototype spectrometer based FD OCT system was used in combination with a cus ...
optical guided waves and devices - Workspace
... laser, deep inside the package, allowing very simple connection to a fibre system. Furthermore, the semiconductor laser can emit light of the wavelengths at which silica fibre shows minimum dispersion and minimum propagation loss, near λ0 = 1.3 and 1.5 µm respectively. With careful design, the outpu ...
... laser, deep inside the package, allowing very simple connection to a fibre system. Furthermore, the semiconductor laser can emit light of the wavelengths at which silica fibre shows minimum dispersion and minimum propagation loss, near λ0 = 1.3 and 1.5 µm respectively. With careful design, the outpu ...
POLITECNICO DI MILANO Polo Regionale di Lecco Faculty of
... performance of photodiode with its alimentation circuit, and oscilloscope used to acquire measurement signal. Next, detailed presentation for OES experimental setup in laser drilling is covered. An overview of experimental setup description is presented first followed by a discussion on individual c ...
... performance of photodiode with its alimentation circuit, and oscilloscope used to acquire measurement signal. Next, detailed presentation for OES experimental setup in laser drilling is covered. An overview of experimental setup description is presented first followed by a discussion on individual c ...
Integration of Magneto Optical Traps in Atom Chips
... This thesis describes the manufacture and demonstration of microfabricated hollow pyramidal mirrors for the purposes of integrated laser cooling and trapping of atoms on an atom chip. A single incident circularly polarised laser beam is reflected inside the pyramid hollow creating all the required b ...
... This thesis describes the manufacture and demonstration of microfabricated hollow pyramidal mirrors for the purposes of integrated laser cooling and trapping of atoms on an atom chip. A single incident circularly polarised laser beam is reflected inside the pyramid hollow creating all the required b ...
Infrared fibers
... The second family in Fig. 1 [Figs. 1(d)–1(f)] comprises recently developed hybrid IR fibers where materials from heterogeneous families of materials are combined: chalcogenide glasses with a polymer [Fig. 1(d)], chalcogenide and silica glasses [Fig. 1(e)], and chalcogenide and tellurite glasses [Fi ...
... The second family in Fig. 1 [Figs. 1(d)–1(f)] comprises recently developed hybrid IR fibers where materials from heterogeneous families of materials are combined: chalcogenide glasses with a polymer [Fig. 1(d)], chalcogenide and silica glasses [Fig. 1(e)], and chalcogenide and tellurite glasses [Fi ...
Ex-vivo and In-vivo Characterization of Human Accommodation
... of fundamental articles on the ophthalmic A-mode diagnostic method40-42. This method was further developed, especially in Europe43, and was complemented by the diagnosis of orbital processes as well as biometry44. By the mid-1970s, ultrasound technology allowed the determination of the axial length ...
... of fundamental articles on the ophthalmic A-mode diagnostic method40-42. This method was further developed, especially in Europe43, and was complemented by the diagnosis of orbital processes as well as biometry44. By the mid-1970s, ultrasound technology allowed the determination of the axial length ...
Phase Matching and Coherence of High-Order Harmonic
... scientifically useful, temporally and spatially coherent source of extreme ultraviolet light. Because of the nature of the generation process, the harmonics are emitted in a series of attosecond bursts, creating a spectroscopic and imaging tool with high temporal and spatial resolving power. The coh ...
... scientifically useful, temporally and spatially coherent source of extreme ultraviolet light. Because of the nature of the generation process, the harmonics are emitted in a series of attosecond bursts, creating a spectroscopic and imaging tool with high temporal and spatial resolving power. The coh ...
Leica TCS SP8 STED 3X-Brochure EN
... STED microscopy by Leica Microsystems has revolutionized the study of subcellular architecture and cell dynamics at the nanoscale. The fully integrated STED (STimulated Emission Depletion) system meets the requirements of daily research and provides fast, intuitive, and purely optical access to str ...
... STED microscopy by Leica Microsystems has revolutionized the study of subcellular architecture and cell dynamics at the nanoscale. The fully integrated STED (STimulated Emission Depletion) system meets the requirements of daily research and provides fast, intuitive, and purely optical access to str ...
LIGHT GENERATION AND MANIPULATION FROM NONLINEAR RANDOMLY DISTRIBUTED DOMAINS IN SBN
... scattering. In random media with a small number of scatterers separated with sufficiently large distances, light scattering is best described with the single light scattering limit where the light scattered from each scatterer is not affected by the presence of the rest of scatterers. In that limit, ...
... scattering. In random media with a small number of scatterers separated with sufficiently large distances, light scattering is best described with the single light scattering limit where the light scattered from each scatterer is not affected by the presence of the rest of scatterers. In that limit, ...
Optical Quality and Depth-of-field of Eyes Implanted With
... of visual performance (visual acuity and contrast sensitivity). Kershner22 found that uncorrected visual acuity 1 month after surgery was not significantly different between the aspheric group and the spherical-acrylic group. The most significant differences between aspheric and spherical lenses occur ...
... of visual performance (visual acuity and contrast sensitivity). Kershner22 found that uncorrected visual acuity 1 month after surgery was not significantly different between the aspheric group and the spherical-acrylic group. The most significant differences between aspheric and spherical lenses occur ...
Lab 71 in TFFM08 Fiber Optics
... rarer medium would be bent away from the normal. In Figure 4, a series of rays in a dense medium are incident on an interface at different angles of incidence. Ray #1 is refracted at the interface to a rarer medium according to Snell's Law. Ray #2 is incident at an angle such that the refracted angl ...
... rarer medium would be bent away from the normal. In Figure 4, a series of rays in a dense medium are incident on an interface at different angles of incidence. Ray #1 is refracted at the interface to a rarer medium according to Snell's Law. Ray #2 is incident at an angle such that the refracted angl ...
Vortex Vein Varix Simulating choroidal Melanoma
... various shapes and sizes.3 Venous tributaries in the choroid drain into the vortex vein ampulla, which leads to the vortex vein.3 The vortex vein is located within the scleral canal and exits the orbit through the ophthalmic vein.3 There is usually 1 vortex vein per quadrant of the eye, but Lim et a ...
... various shapes and sizes.3 Venous tributaries in the choroid drain into the vortex vein ampulla, which leads to the vortex vein.3 The vortex vein is located within the scleral canal and exits the orbit through the ophthalmic vein.3 There is usually 1 vortex vein per quadrant of the eye, but Lim et a ...
Laser Sources for Confocal Microscopy
... Compared to other sources emitting electro-magnetic radiation, such as hot filaments, arc lamps, and light-emitting diodes (LEDs), lasers have a number of unique properties, which make them an almost ideal light source for use in confocal microscopy. These properties are: ...
... Compared to other sources emitting electro-magnetic radiation, such as hot filaments, arc lamps, and light-emitting diodes (LEDs), lasers have a number of unique properties, which make them an almost ideal light source for use in confocal microscopy. These properties are: ...
Laser Sources for Confocal Microscopy
... Compared to other sources emitting electro-magnetic radiation, such as hot filaments, arc lamps, and light-emitting diodes (LEDs), lasers have a number of unique properties, which make them an almost ideal light source for use in confocal microscopy. These properties are: ...
... Compared to other sources emitting electro-magnetic radiation, such as hot filaments, arc lamps, and light-emitting diodes (LEDs), lasers have a number of unique properties, which make them an almost ideal light source for use in confocal microscopy. These properties are: ...
Integrated Opto-Micro uidic Lab-on-a-Chip in
... continuous-ow microuidics, droplet-based microuidics allows also for independent control of each droplet, thus generating micro-reactor that can be individually transported, mixed and analysed, allowing for parallel processing and for large sets of data to be acquired in a short time. There are t ...
... continuous-ow microuidics, droplet-based microuidics allows also for independent control of each droplet, thus generating micro-reactor that can be individually transported, mixed and analysed, allowing for parallel processing and for large sets of data to be acquired in a short time. There are t ...
Frontiers in Optics 2010/Laser Science XXVI
... Abstract: Using the extreme nonlinear process of high harmonic generation, light from an ultrafast laser can be coherently upshifted, generating bright ultrafast coherent beams extending into the soft and soon hard x-ray regions of the spectrum. Applications in molecular and materials dynamics, as w ...
... Abstract: Using the extreme nonlinear process of high harmonic generation, light from an ultrafast laser can be coherently upshifted, generating bright ultrafast coherent beams extending into the soft and soon hard x-ray regions of the spectrum. Applications in molecular and materials dynamics, as w ...
Ultrasound Biomicroscopy in Glaucoma: An Update
... UBM instrument). The limited depth of penetration is also associated with a smaller angular field. The real-time image is displayed on a video monitor and can be recorded. The room illumination, fixation and accommodative effort of the patient should be held constant particularly while doing quantit ...
... UBM instrument). The limited depth of penetration is also associated with a smaller angular field. The real-time image is displayed on a video monitor and can be recorded. The room illumination, fixation and accommodative effort of the patient should be held constant particularly while doing quantit ...
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.