Femtosecond pulse propagation in silicon waveguides: Variational
... which linear and nonlinear process affect a particular pulse parameter. Considerable physical insight is gained by noting that the pulse width in Eq. (12) is affected directly not only by the dispersion parameter (as expected) but also by the TPA (somewhat unexpected). Moreover, whereas dispersion m ...
... which linear and nonlinear process affect a particular pulse parameter. Considerable physical insight is gained by noting that the pulse width in Eq. (12) is affected directly not only by the dispersion parameter (as expected) but also by the TPA (somewhat unexpected). Moreover, whereas dispersion m ...
Invited Paper
... The transmission of data using an on-chip OI requires an electro-optical modulator and an electrical driver circuit. The laser source provides light to the modulator, which transduces electrical data supplied from the electrical driver into a modulated optical signal. Several high-speed electro-opti ...
... The transmission of data using an on-chip OI requires an electro-optical modulator and an electrical driver circuit. The laser source provides light to the modulator, which transduces electrical data supplied from the electrical driver into a modulated optical signal. Several high-speed electro-opti ...
... WARNING. Access to the contents of this doctoral thesis and its use must respect the rights of the author. It can be used for reference or private study, as well as research and learning activities or materials in the terms established by the 32nd article of the Spanish Consolidated Copyright Act (R ...
Investigation of bending loss in a single
... radius of the bend, for different wavelengths, and the model which they have used showed better agreement for lower wavelength (880, 920 mm), while for higher λ (1480, 1550 mm), fitting is not that good. The other problem with their results is that their model is satisfactory for bending radius (R) ...
... radius of the bend, for different wavelengths, and the model which they have used showed better agreement for lower wavelength (880, 920 mm), while for higher λ (1480, 1550 mm), fitting is not that good. The other problem with their results is that their model is satisfactory for bending radius (R) ...
Nanowire Grid Polarizers for Mid- and Long-Wavelength
... Fourier Transform Infrared (FTIR) spectroscopic analysis of part performance in transmission was completed at Moxtek and verified at an outside reference lab. Open and blocked beam configurations and a silicon reference standard were used to validate instrument accuracy for transmission measurements ...
... Fourier Transform Infrared (FTIR) spectroscopic analysis of part performance in transmission was completed at Moxtek and verified at an outside reference lab. Open and blocked beam configurations and a silicon reference standard were used to validate instrument accuracy for transmission measurements ...
Get PDF - OSA Publishing
... Photonic band-gap materials [1] – artificial periodic structures fabricated in a dielectric medium with a high refractive index contrast – offer new possibilities for the control and manipulation of coherent light waves. Diffraction management, localization, and controlled steering of light in perio ...
... Photonic band-gap materials [1] – artificial periodic structures fabricated in a dielectric medium with a high refractive index contrast – offer new possibilities for the control and manipulation of coherent light waves. Diffraction management, localization, and controlled steering of light in perio ...
Concentration effect of carbon nanotube based saturable
... Passively mode-locked erbium-doped fiber laser (MLEDFL) enables to generate optical pulses in picosecond and femtosecond regimes [1,2] and is often initiated by nonlinear optical elements with intensity-dependent response to favor optical pulsation over continuous–wave lasing [3]. The optical nonlin ...
... Passively mode-locked erbium-doped fiber laser (MLEDFL) enables to generate optical pulses in picosecond and femtosecond regimes [1,2] and is often initiated by nonlinear optical elements with intensity-dependent response to favor optical pulsation over continuous–wave lasing [3]. The optical nonlin ...
EE Course Descriptions
... memos, abstracts, reports, letters, emails, etc. The advanced oral communication components of the course focus on planning, developing, and delivering dynamic, informative and persuasive presentations. Advanced skills in effective teamwork, leadership, listening, multimedia and computer generated v ...
... memos, abstracts, reports, letters, emails, etc. The advanced oral communication components of the course focus on planning, developing, and delivering dynamic, informative and persuasive presentations. Advanced skills in effective teamwork, leadership, listening, multimedia and computer generated v ...
EE Course Descriptions
... memos, abstracts, reports, letters, emails, etc. The advanced oral communication components of the course focus on planning, developing, and delivering dynamic, informative and persuasive presentations. Advanced skills in effective teamwork, leadership, listening, multimedia and computer generated v ...
... memos, abstracts, reports, letters, emails, etc. The advanced oral communication components of the course focus on planning, developing, and delivering dynamic, informative and persuasive presentations. Advanced skills in effective teamwork, leadership, listening, multimedia and computer generated v ...
MPE Tutorial Multiphoton Excitation Microscopy 5100 Patrick Henry Drive
... should be enclosed to prevent accidentally exposing the operator to the beam. In addition, group velocity dispersion from the microscope optics can result in a broadened pulsewidth, which will effect both the twophoton absorption and the imaging quality. Fiber coupling eliminates enclosure issues, b ...
... should be enclosed to prevent accidentally exposing the operator to the beam. In addition, group velocity dispersion from the microscope optics can result in a broadened pulsewidth, which will effect both the twophoton absorption and the imaging quality. Fiber coupling eliminates enclosure issues, b ...
Recent progress in investigating optical rogue waves
... collisions, which can produce events with high red-shifted energy [47, 49]. The energy exchange between the solitons is facilitated by third-order dispersion [50, 51] and Raman effects. From multiple collisions, the strong solitons have a tendency to accumulate energy from the weaker ones, thus exit ...
... collisions, which can produce events with high red-shifted energy [47, 49]. The energy exchange between the solitons is facilitated by third-order dispersion [50, 51] and Raman effects. From multiple collisions, the strong solitons have a tendency to accumulate energy from the weaker ones, thus exit ...
Achromatic correction of diffractive dispersion in white light SLM
... the SLM. Even in a cooperation with the corrector, the SLM works as an independent device. Its initial operation is maintained for the central wavelength, and only other spectral components are influenced. To achieve such a regime, the corrector is designed in such a way that its optical power is ze ...
... the SLM. Even in a cooperation with the corrector, the SLM works as an independent device. Its initial operation is maintained for the central wavelength, and only other spectral components are influenced. To achieve such a regime, the corrector is designed in such a way that its optical power is ze ...
Optically induced forces in scanning probe microscopy
... both theoretically and experimentally [13–17]. Because a small NSOM probe is often modeled as a small sphere and because TIR illumination is common for this microscopy, these studies can provide a useful framework to understand NSOM measurements. To our knowledge, the prospect that an atomic force m ...
... both theoretically and experimentally [13–17]. Because a small NSOM probe is often modeled as a small sphere and because TIR illumination is common for this microscopy, these studies can provide a useful framework to understand NSOM measurements. To our knowledge, the prospect that an atomic force m ...
FABRICATION OF MICROFLUIDIC STRUCTURES BY LASER
... an array of lithographically defined grating couplers on a chip now has 6 degrees of freedom – three translation axes, and rotation about those axes. If we can build a system to mechanically constrain some of these degrees of freedom, and automatically align the others, we can align a chip to a fibe ...
... an array of lithographically defined grating couplers on a chip now has 6 degrees of freedom – three translation axes, and rotation about those axes. If we can build a system to mechanically constrain some of these degrees of freedom, and automatically align the others, we can align a chip to a fibe ...
45.Z-scan measurement of the nonlinear refractive index of graphene
... layers, were used in the experiments reported below. The fabrication process produces loosely stacked graphene layers wherein the optical properties are expected to arise from the cumulative contribution of each layer. We measured the real and imaginary parts of the complex nonlinear refractive inde ...
... layers, were used in the experiments reported below. The fabrication process produces loosely stacked graphene layers wherein the optical properties are expected to arise from the cumulative contribution of each layer. We measured the real and imaginary parts of the complex nonlinear refractive inde ...
Acousto-Optic Devices and Applications
... early work on AO diffraction can be found in Refs. 5 and 6. Although the basic theory of AO diffraction in isotropic media was well understood, there had been relatively few practical applications prior to the invention of the laser. It was the need of optical devices for laser beam control that sti ...
... early work on AO diffraction can be found in Refs. 5 and 6. Although the basic theory of AO diffraction in isotropic media was well understood, there had been relatively few practical applications prior to the invention of the laser. It was the need of optical devices for laser beam control that sti ...
Detection of Fluorescence from Single Molecules
... the sample plane. This focused light will be used for fluorescence excitation. For this alignment procedure, you will place a collimated light source and two mirrors behind the microscope, directing the light toward the microscope objective. You will coarsely align these three optical elements so th ...
... the sample plane. This focused light will be used for fluorescence excitation. For this alignment procedure, you will place a collimated light source and two mirrors behind the microscope, directing the light toward the microscope objective. You will coarsely align these three optical elements so th ...
Exemption Renewal Request Form
... wavelengths that are not required for inducing fluorescence and filters are also used to remove the input excitation light from the output fluorescent light. Examples of tests carried out with fluorescent dyes shows the small differences in wavelengths that need to be separated, for example, an oran ...
... wavelengths that are not required for inducing fluorescence and filters are also used to remove the input excitation light from the output fluorescent light. Examples of tests carried out with fluorescent dyes shows the small differences in wavelengths that need to be separated, for example, an oran ...
Label-free super-resolution imaging of adenoviruses by submerged
... Lin Li1, Wei Guo1, Yinzhou Yan1, Seoungjun Lee1 and Tao Wang2 Because of the small sizes of most viruses (typically 5–150 nm), standard optical microscopes, which have an optical diffraction limit of 200 nm, are not generally suitable for their direct observation. Electron microscopes usually requir ...
... Lin Li1, Wei Guo1, Yinzhou Yan1, Seoungjun Lee1 and Tao Wang2 Because of the small sizes of most viruses (typically 5–150 nm), standard optical microscopes, which have an optical diffraction limit of 200 nm, are not generally suitable for their direct observation. Electron microscopes usually requir ...
Composite THz materials using aligned metallic
... size of the features making a composite is much smaller than the wavelength of light, then such a composite can be thought of as a homogeneous (however, anisotropic) medium [3,4] that can exhibit various unusual properties. One possible implementation of a THz metamaterial is in the form of the peri ...
... size of the features making a composite is much smaller than the wavelength of light, then such a composite can be thought of as a homogeneous (however, anisotropic) medium [3,4] that can exhibit various unusual properties. One possible implementation of a THz metamaterial is in the form of the peri ...
Physics and Computation of Aero-Optics
... much larger than the optical wavelength, and hence an optical beam propagates predominantly in the axial (z) direction with slowly varying amplitude. It is customary to invoke the paraxial approximation, which assumes U (x, y, z) = A(x, y, z) exp(−ikz) and |∂ 2 A/∂z 2 | ≪ |k∂A/∂z|, where k = ω/c∞ is ...
... much larger than the optical wavelength, and hence an optical beam propagates predominantly in the axial (z) direction with slowly varying amplitude. It is customary to invoke the paraxial approximation, which assumes U (x, y, z) = A(x, y, z) exp(−ikz) and |∂ 2 A/∂z 2 | ≪ |k∂A/∂z|, where k = ω/c∞ is ...
optical properties of skin, subcutaneous, and muscle tissues
... accuracy. In principle, the method allows for any intended accuracy to be achieved for all the parameters being measured, provided the necessary computer time is available. An error of 3% or less is considered acceptable.30 Also, the method may be used to directly correct experimental ¯ndings obtain ...
... accuracy. In principle, the method allows for any intended accuracy to be achieved for all the parameters being measured, provided the necessary computer time is available. An error of 3% or less is considered acceptable.30 Also, the method may be used to directly correct experimental ¯ndings obtain ...
Changes.
... systems approach. The concepts of impulse response and transfer functions for unbounded wave propagation, diffraction, and image formation. Introduction to holography and optical data processing. Prerequisites: EE 3302 and EE 4301 or equivalents. (3-0) R EE 6310 Optical Communication Systems (3 seme ...
... systems approach. The concepts of impulse response and transfer functions for unbounded wave propagation, diffraction, and image formation. Introduction to holography and optical data processing. Prerequisites: EE 3302 and EE 4301 or equivalents. (3-0) R EE 6310 Optical Communication Systems (3 seme ...
all-optical wavelength conversion based on four-wave
... All-optical wavelength conversion is investigated using fourwave mixing in silicon waveguides. The influences of nonlinear losses caused by two-photon absorption (TPA) and TPA-induced free-carrier absorption on the conversion efficiency and phase-matching condition are analyzed. The conversion bandw ...
... All-optical wavelength conversion is investigated using fourwave mixing in silicon waveguides. The influences of nonlinear losses caused by two-photon absorption (TPA) and TPA-induced free-carrier absorption on the conversion efficiency and phase-matching condition are analyzed. The conversion bandw ...
Fiber-optic communication
Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber. The light forms an electromagnetic carrier wave that is modulated to carry information. First developed in the 1970s, fiber-optic communication systems have revolutionized the telecommunications industry and have played a major role in the advent of the Information Age. Because of its advantages over electrical transmission, optical fibers have largely replaced copper wire communications in core networks in the developed world. Optical fiber is used by many telecommunications companies to transmit telephone signals, Internet communication, and cable television signals. Researchers at Bell Labs have reached internet speeds of over 100 petabit×kilometer per second using fiber-optic communication.The process of communicating using fiber-optics involves the following basic steps: Creating the optical signal involving the use of a transmitter, relaying the signal along the fiber, ensuring that the signal does not become too distorted or weak, receiving the optical signal, and converting it into an electrical signal.