Structure of Optical Vortices
... where we assume a local angular momentum flux of `h̄ per photon. The prefactor A0 includes such geometric factors as the particle’s scattering cross-section. The other is an optical gradient force due to the polarizable particle’s response to local intensity gradients: Fg (s) = −A0 ...
... where we assume a local angular momentum flux of `h̄ per photon. The prefactor A0 includes such geometric factors as the particle’s scattering cross-section. The other is an optical gradient force due to the polarizable particle’s response to local intensity gradients: Fg (s) = −A0 ...
EsmaelH.M.YahyaMFKE2007TTTABS
... device is widely used in optical network, especially in the optical link of fiber-to-thehome (FTTH). The design is carried out using BPM_CAD, which is a very powerful and user-friendly optics waveguides modeling method as it core element. Research on optical waveguide switching using directional cou ...
... device is widely used in optical network, especially in the optical link of fiber-to-thehome (FTTH). The design is carried out using BPM_CAD, which is a very powerful and user-friendly optics waveguides modeling method as it core element. Research on optical waveguide switching using directional cou ...
Catching the wave - Selected Topics in Quantum Electronics, IEEE
... Herriott, and Ali Javan working on He–Ne, and another group working on rare earth ions in CaWO . The practically unlimited resources of Bell Labs were very much at play. I had about six to seven engineers and technicians help me cut, polish, orient, and test a large range of potential laser crystals ...
... Herriott, and Ali Javan working on He–Ne, and another group working on rare earth ions in CaWO . The practically unlimited resources of Bell Labs were very much at play. I had about six to seven engineers and technicians help me cut, polish, orient, and test a large range of potential laser crystals ...
Refractive indexes of (Al,Ga,In)As epilayers on InP for optoelectronic
... electron confinement in quantum well structures. The material system also has the technological advantage of having only one Group V element, thus making composition control easier, especially in conventional molecular beam epitaxy (MBE) where the Group 111 elements can have near unity sticking coef ...
... electron confinement in quantum well structures. The material system also has the technological advantage of having only one Group V element, thus making composition control easier, especially in conventional molecular beam epitaxy (MBE) where the Group 111 elements can have near unity sticking coef ...
Yellow nanosecond sum-frequency generating optical
... 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 ...
A Laser Coupler for DVD/CD Playback
... The DVD system is now being widely used in playback optical disc systems, such as DVDvideo players and DVD-ROM drives. In the DVD system, it is important that the optical pickup of the system can play back both DVD media and CD media such as CD-DA, CD-ROM and CD-R/RW. But the 650nm laser cannot be u ...
... The DVD system is now being widely used in playback optical disc systems, such as DVDvideo players and DVD-ROM drives. In the DVD system, it is important that the optical pickup of the system can play back both DVD media and CD media such as CD-DA, CD-ROM and CD-R/RW. But the 650nm laser cannot be u ...
Costas-Loop Based Carrier Recovery in Optical Coherent Intersatellite Communications Systems Semjon Schaefer
... numerical approximation is required in order to investigate the nonlinear behaviour. A common graphical method to investigate this approximation of the nonlinear PLL is the phase plane diagram. This diagram shows the frequency error d dt depending on the phase error . The phase error is wrap ...
... numerical approximation is required in order to investigate the nonlinear behaviour. A common graphical method to investigate this approximation of the nonlinear PLL is the phase plane diagram. This diagram shows the frequency error d dt depending on the phase error . The phase error is wrap ...
McDonald-etal-OE-2015-3D-mapping-of-intensity
... that the intensity distribution that would be formed in an optical tweezing experiment [22], for example, can be faithfully interrogated. Probing the focal plane of the parabolic mirrors requires illumination with collimated light co–axial with the mirror axis (orthogonal to the substrate surface). ...
... that the intensity distribution that would be formed in an optical tweezing experiment [22], for example, can be faithfully interrogated. Probing the focal plane of the parabolic mirrors requires illumination with collimated light co–axial with the mirror axis (orthogonal to the substrate surface). ...
Bimodal optical computers
... These problems are of great interest in their own right. In addition such systems with high dimensions arise when linear partial differential equations are solved by the finite difference method. Many other problems can be recast in this form. Suppose further that we have built a discrete optical an ...
... These problems are of great interest in their own right. In addition such systems with high dimensions arise when linear partial differential equations are solved by the finite difference method. Many other problems can be recast in this form. Suppose further that we have built a discrete optical an ...
——— Our CVD diamond has an extremely broad
... E L EME N T S I X Element Six, part of the De Beers Group of Companies, designs, develops and produces synthetic diamond and other supermaterials, and operates worldwide with primary manufacturing facilities in China, Germany, Ireland, South Africa, the UK and US. Element Six supermaterial solution ...
... E L EME N T S I X Element Six, part of the De Beers Group of Companies, designs, develops and produces synthetic diamond and other supermaterials, and operates worldwide with primary manufacturing facilities in China, Germany, Ireland, South Africa, the UK and US. Element Six supermaterial solution ...
Colorful Liquid Crys tal Fil ter Abstract Color filters are very important
... Colorful Liquid Crys tal Fil ter Abstract Color filters are very important components for optical equipment. Basically,color filters are made of high-density glass or isinglass. They can select a certain part of aspectrum before further processed.However,the transmitting spectral band is usually fix ...
... Colorful Liquid Crys tal Fil ter Abstract Color filters are very important components for optical equipment. Basically,color filters are made of high-density glass or isinglass. They can select a certain part of aspectrum before further processed.However,the transmitting spectral band is usually fix ...
measuring
... It is a quantitative science based on a statistical model of the human visual response to light - that is, our perception of light - under carefully controlled conditions. The standardized model of the eye's response to light as a function of wavelength is given by the luminosity function. The eye h ...
... It is a quantitative science based on a statistical model of the human visual response to light - that is, our perception of light - under carefully controlled conditions. The standardized model of the eye's response to light as a function of wavelength is given by the luminosity function. The eye h ...
Optical Metrology - Bogazici University Physics Department
... Advantageous of the Optical Profilometry Applicable ...
... Advantageous of the Optical Profilometry Applicable ...
Perspectives for GAIA
... Perspectives for investigation of CVs with ESA Gaia (I): Profiles of the light curves of cataclysmic variables (CVs) will be significantly affected by the sampling of the Gaia data. The individual outbursts in dwarf novae are expected to be covered by only a few Gaia data points – no or very li ...
... Perspectives for investigation of CVs with ESA Gaia (I): Profiles of the light curves of cataclysmic variables (CVs) will be significantly affected by the sampling of the Gaia data. The individual outbursts in dwarf novae are expected to be covered by only a few Gaia data points – no or very li ...
Presentation - University of Arizona
... Nodal planes have the characteristic of identity angular magnification. When the optical system is in air, nodal points/planes coincide with the principal points/planes. Principal points/planes can be described using Newtonian equations or Gaussian equations which measure the distances from focal ...
... Nodal planes have the characteristic of identity angular magnification. When the optical system is in air, nodal points/planes coincide with the principal points/planes. Principal points/planes can be described using Newtonian equations or Gaussian equations which measure the distances from focal ...
Slide 1
... materials, whose unique properties have changed our view of optics and opened up new ways of processing light. Photonic crystals are composed of periodic dielectric or metallo-dielectric nanostructures that affect the propagation of electromagnetic waves (EM) in the same way as the periodic potentia ...
... materials, whose unique properties have changed our view of optics and opened up new ways of processing light. Photonic crystals are composed of periodic dielectric or metallo-dielectric nanostructures that affect the propagation of electromagnetic waves (EM) in the same way as the periodic potentia ...
Specialty flat-top beam delivery fibers with controlled beam
... and beam control by transformation of the light as it enters the core of an optical fiber and as it propagates down its length. The following concepts are not limited to fiber laser systems and can be applied to light beam from any rod, disk or diode laser source. In the case of fiber-based applicat ...
... and beam control by transformation of the light as it enters the core of an optical fiber and as it propagates down its length. The following concepts are not limited to fiber laser systems and can be applied to light beam from any rod, disk or diode laser source. In the case of fiber-based applicat ...
FBG Sensor
... revolution is bringing about the benefits of high volume production to component users and a true information superhighway built of glass. In parallel with these developments fiber optic sensor [1-6] technology has been a major user of technology associated with the optoelectronic and fiber optic co ...
... revolution is bringing about the benefits of high volume production to component users and a true information superhighway built of glass. In parallel with these developments fiber optic sensor [1-6] technology has been a major user of technology associated with the optoelectronic and fiber optic co ...
No Slide Title - DCC
... Length sensing and control We have implemented both AM and SSB as length sensing signals for a suspended coupled-cavity system. Both schemes provided stable, decoupled control signals over several hours in a stable temperature environment. For longer-term operation it is expected that electronic fee ...
... Length sensing and control We have implemented both AM and SSB as length sensing signals for a suspended coupled-cavity system. Both schemes provided stable, decoupled control signals over several hours in a stable temperature environment. For longer-term operation it is expected that electronic fee ...
Nanophotonics: Shrinking light-based technology
... coupling can be reached with plasmons and single emitters. When a single emitter releases its energy as a quantum of light near a nanoresonator, the decay is not irreversible. Instead, the coupling may be made sufficiently strong to enable Rabi oscillations, coherently exchanging the excitation (13) ...
... coupling can be reached with plasmons and single emitters. When a single emitter releases its energy as a quantum of light near a nanoresonator, the decay is not irreversible. Instead, the coupling may be made sufficiently strong to enable Rabi oscillations, coherently exchanging the excitation (13) ...
Color-changing and color-tunable photonic bandgap fiber textiles
... one can either tune the color of an individual fiber, or change it dynamically by controlling the intensity of the launched light. This opens new opportunities for the development of photonic textiles with adaptive coloration, as well as wearable fiber-based color displays. So far, application of ph ...
... one can either tune the color of an individual fiber, or change it dynamically by controlling the intensity of the launched light. This opens new opportunities for the development of photonic textiles with adaptive coloration, as well as wearable fiber-based color displays. So far, application of ph ...
2001 - Institute of Applied Physics - Friedrich-Schiller
... combining large angles of profiles and non-paraxial incident waves may lead to spherical aberrations. In this case it is necessary to use special design methods which consider these effects. We want to present a special beam shaping task for an application in safety engineering, in which beam shapin ...
... combining large angles of profiles and non-paraxial incident waves may lead to spherical aberrations. In this case it is necessary to use special design methods which consider these effects. We want to present a special beam shaping task for an application in safety engineering, in which beam shapin ...
adequate designs, even though these design adequacies were
... geometrical configuration can be optimised at an early stage without committing to a limited performance solution which will hinder development at a later date. Being simplistic in definition and early in the process, it is also easier for analytical techniques to be employed, and more effective whe ...
... geometrical configuration can be optimised at an early stage without committing to a limited performance solution which will hinder development at a later date. Being simplistic in definition and early in the process, it is also easier for analytical techniques to be employed, and more effective whe ...
Guided Wave Analysis of Hollow Optical Fiber for Mode
... We analyzed first few cladding modes and categorized into symmetric and antisymmetric modes as in Fig. 6. Antisymmetric cladding modes are (a)–(f), and (g)–(i) are symmetric and modes are nondegenerate, modes. Note that and HE and EH are twofold degenerate modes. In the calculation, we assumed the c ...
... We analyzed first few cladding modes and categorized into symmetric and antisymmetric modes as in Fig. 6. Antisymmetric cladding modes are (a)–(f), and (g)–(i) are symmetric and modes are nondegenerate, modes. Note that and HE and EH are twofold degenerate modes. In the calculation, we assumed the c ...
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.