software development life cycle
... The work towards a silicon-based emitter is ongoing but still far from nature. Until an efficient, reliable silicon based light source is available, a photonic integrated system will need to use a conventional III-V material light emitter. ...
... The work towards a silicon-based emitter is ongoing but still far from nature. Until an efficient, reliable silicon based light source is available, a photonic integrated system will need to use a conventional III-V material light emitter. ...
Noise-equivalent sensitivity of photoacoustics
... in the frequency range of hundreds of kilohertz to a few gigahertz. The generated pressure amplitude is proportional to the modulated light intensity, which implies that the generated acoustic intensity is proportional to the square of the modulated light intensity. So in the sense of energy convers ...
... in the frequency range of hundreds of kilohertz to a few gigahertz. The generated pressure amplitude is proportional to the modulated light intensity, which implies that the generated acoustic intensity is proportional to the square of the modulated light intensity. So in the sense of energy convers ...
An Optical Mask for Atomic Interferometry Experiments
... of a sample of atoms - what is now known as laser cooling [16] [17]. Although much earlier, in 1968, Letokhov suggested using the optical dipole force to trap atoms (see [18] for reference). The first experiments on laser-cooled atoms were performed in 1978 first by Wineland, Drullinger, and Walls [ ...
... of a sample of atoms - what is now known as laser cooling [16] [17]. Although much earlier, in 1968, Letokhov suggested using the optical dipole force to trap atoms (see [18] for reference). The first experiments on laser-cooled atoms were performed in 1978 first by Wineland, Drullinger, and Walls [ ...
ACOUSTO-OPTICS
... (graded-index) media was discussedat several points in Chaps. 1 and 2 (Sets. 1.3 and 2.4C). Since optical frequencies are much greater than acoustic frequencies, the variations of the refractive index in a medium perturbed by sound are usually very slow in comparison with an optical period. There ar ...
... (graded-index) media was discussedat several points in Chaps. 1 and 2 (Sets. 1.3 and 2.4C). Since optical frequencies are much greater than acoustic frequencies, the variations of the refractive index in a medium perturbed by sound are usually very slow in comparison with an optical period. There ar ...
lens theory - Laser Components
... axis, the back, second, or secondary focal point. Ray B is incident from right to left and parallel to the optical axis. Ray B is refracted to point F1 on axis, the front, first, or primary focal point. Suppose the lens is "well-corrected". That means all rays A parallel to the axis are focused to a ...
... axis, the back, second, or secondary focal point. Ray B is incident from right to left and parallel to the optical axis. Ray B is refracted to point F1 on axis, the front, first, or primary focal point. Suppose the lens is "well-corrected". That means all rays A parallel to the axis are focused to a ...
Mimicking the colourful wing scale structure of the
... Figure 3 | An artificial optical mimic. a, b, SEM images of concavities which are covered by a conformal multilayer stack of 11 alternating layers of titania and alumina: a top view, 2 µm, b cross-section, 1 µm. c, At perpendicular light incidence the artificial replica appears green, while it, d, r ...
... Figure 3 | An artificial optical mimic. a, b, SEM images of concavities which are covered by a conformal multilayer stack of 11 alternating layers of titania and alumina: a top view, 2 µm, b cross-section, 1 µm. c, At perpendicular light incidence the artificial replica appears green, while it, d, r ...
Sample pages 1 PDF
... reversed image that would otherwise result from the objective and eyepiece alone. A secondary effect is that they fold the light path, so that the binocular is shorter than it would otherwise be. For smaller binoculars in particular, this makes them easier to handle. As stated above, binoculars are ...
... reversed image that would otherwise result from the objective and eyepiece alone. A secondary effect is that they fold the light path, so that the binocular is shorter than it would otherwise be. For smaller binoculars in particular, this makes them easier to handle. As stated above, binoculars are ...
Optical Time Domain Reflectometry (OTDR)
... for optical fibers [3,4]. OTDR is extensively used in telecommunications to check the integrity of fiber links and to locate possible defects. OTDR exploits the Rayleigh scattering naturally taking place in the core of optical fibers. As the light propagates down a fiber, small material imperfection ...
... for optical fibers [3,4]. OTDR is extensively used in telecommunications to check the integrity of fiber links and to locate possible defects. OTDR exploits the Rayleigh scattering naturally taking place in the core of optical fibers. As the light propagates down a fiber, small material imperfection ...
Anti-Stokes luminescence cooling of Tm3+doped
... Laser cooling of solids is receiving increased attention because it can be the foundation of compact, rugged, efficient, and reliable cryo-coolers [1]. This concept — sometimes referred to as optical refrigeration — uses anti-Stokes fluorescence to remove thermal energy from a condensed matter syste ...
... Laser cooling of solids is receiving increased attention because it can be the foundation of compact, rugged, efficient, and reliable cryo-coolers [1]. This concept — sometimes referred to as optical refrigeration — uses anti-Stokes fluorescence to remove thermal energy from a condensed matter syste ...
Optical coherence tomography (OCT): a review
... unrealistic assumption. However, models based on a modified version of this assumption provide a satisfactory description of OCT imaging in the eye and other transparent tissues composed of weakly reflecting layers that are flat over the cross section of the sample beam [22]–[25]. In this special ca ...
... unrealistic assumption. However, models based on a modified version of this assumption provide a satisfactory description of OCT imaging in the eye and other transparent tissues composed of weakly reflecting layers that are flat over the cross section of the sample beam [22]–[25]. In this special ca ...
Complex air-structured optical fibre drawn from a 3D
... A structured optical fibre is drawn from a 3D-printed structured preform. Preforms containing a single ring of holes around the core are fabricated using filament made from a modified butadiene polymer. More broadly, 3D printers capable of processing soft glasses, silica and other materials are like ...
... A structured optical fibre is drawn from a 3D-printed structured preform. Preforms containing a single ring of holes around the core are fabricated using filament made from a modified butadiene polymer. More broadly, 3D printers capable of processing soft glasses, silica and other materials are like ...
Fourier Optics Laboratory Manual - McGill Undergraduate Physics Lab
... image. High and low frequencies occupy different positions on the transform plane, which gives the freedom to filter out some components of an image. The origin of the transform plane, where the zero frequency can be found, is on the axis of the optical system, at the centre of the plane. This fact ...
... image. High and low frequencies occupy different positions on the transform plane, which gives the freedom to filter out some components of an image. The origin of the transform plane, where the zero frequency can be found, is on the axis of the optical system, at the centre of the plane. This fact ...
The influence of divergence angle on the deposition of neutral
... effects do not affect the resolution limit. Also, because they are charge-neutral, unlike electrons or ions, neutral atoms are not affected by the space charge effect, which makes it easy to concentrate many particles into a very small region.[1−3] The basic principle of atom lithography relies on the ...
... effects do not affect the resolution limit. Also, because they are charge-neutral, unlike electrons or ions, neutral atoms are not affected by the space charge effect, which makes it easy to concentrate many particles into a very small region.[1−3] The basic principle of atom lithography relies on the ...
Fabrication and characterization of silicone-based - lammp
... A tissue simulating phantom is made of a bulk material to which a scattering agent and an absorbing agent are added. To date, a variety of materials and optical agents have been used to produce phantoms and have been recently reviewed.[1] Silicone (PDMS) was chosen for the phantoms discussed in this ...
... A tissue simulating phantom is made of a bulk material to which a scattering agent and an absorbing agent are added. To date, a variety of materials and optical agents have been used to produce phantoms and have been recently reviewed.[1] Silicone (PDMS) was chosen for the phantoms discussed in this ...
Lecture 10 - KFUPM Faculty List
... media. Since dPsol/da < 0, Psol a-1 and vice-versa, any increase in the soliton power is compensated for by a decrease in the width. This also holds for non-Kerr solitons. i.e. any decrease in Psol is still compensated by an increase in width and vice-versa. 2. Solitons have fascinating collision ...
... media. Since dPsol/da < 0, Psol a-1 and vice-versa, any increase in the soliton power is compensated for by a decrease in the width. This also holds for non-Kerr solitons. i.e. any decrease in Psol is still compensated by an increase in width and vice-versa. 2. Solitons have fascinating collision ...
Real-time phase measurement of optical vortices based on
... T. Kuga, Y. Torii, N. Shiokawa, T. Hirano, Y. Shimizu, and H. Sasada, “Novel optical trap of atoms with a doughnut beam,” Phys. Rev. Lett. 78(25), 4713–4716 (1997). H. He, M. E. J. Friese, N. R. Heckenberg, and H. Rubinsztein-Dunlop, “Direct observation of transfer of angular momentum to absorptive ...
... T. Kuga, Y. Torii, N. Shiokawa, T. Hirano, Y. Shimizu, and H. Sasada, “Novel optical trap of atoms with a doughnut beam,” Phys. Rev. Lett. 78(25), 4713–4716 (1997). H. He, M. E. J. Friese, N. R. Heckenberg, and H. Rubinsztein-Dunlop, “Direct observation of transfer of angular momentum to absorptive ...
The Influence of Air-hole Filling Fraction of Photonics Crystal Fibers
... fiber. Because of the electrostrictive effect, it can lead to periodic modulation of refractive index of medium when the pump’s power is greater than the Brillouin threshold power. The index grating generated by index modulation scatters the pump light. So Stokes wave is scattered by index grating a ...
... fiber. Because of the electrostrictive effect, it can lead to periodic modulation of refractive index of medium when the pump’s power is greater than the Brillouin threshold power. The index grating generated by index modulation scatters the pump light. So Stokes wave is scattered by index grating a ...
New approach to pulse propagation in nonlinear
... with T nl t0 n2 L∕cIt0 . A major benefit of the time transformation in Eq. (10) is that Eq. (11) is now in the form of a convolution, and the integral appearing there can be calculated efficiently in the Fourier domain using the convolution theorem. A second benefit is that one can include ...
... with T nl t0 n2 L∕cIt0 . A major benefit of the time transformation in Eq. (10) is that Eq. (11) is now in the form of a convolution, and the integral appearing there can be calculated efficiently in the Fourier domain using the convolution theorem. A second benefit is that one can include ...
Optical tweezers
Optical tweezers (originally called ""single-beam gradient force trap"") are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch to physically hold and move microscopic dielectric objects similar to tweezers. Optical tweezers have been particularly successful in studying a variety of biological systems in recent years.