Gigahertz frequency comb offset stabilization
... Optical frequency combs consist of ultrafine optical lines that are equally spaced in the frequency domain with an uncertainty down to the 10−19 level [1]. Over the past 15 years, the generation and stabilization of such combs [2–4] has enabled control of the cycles of light, which represents a majo ...
... Optical frequency combs consist of ultrafine optical lines that are equally spaced in the frequency domain with an uncertainty down to the 10−19 level [1]. Over the past 15 years, the generation and stabilization of such combs [2–4] has enabled control of the cycles of light, which represents a majo ...
Mendes, M. J., et al., Design of optimized wave
... properties of such wave-optical structures crucially depend on their geometry and material. For instance, particle shapes with higher aspect ratio exhibit a stronger anti-reflection action which leads to absorption enhancement mainly in the short wavelength range (UV–vis); while lower aspect ratio en ...
... properties of such wave-optical structures crucially depend on their geometry and material. For instance, particle shapes with higher aspect ratio exhibit a stronger anti-reflection action which leads to absorption enhancement mainly in the short wavelength range (UV–vis); while lower aspect ratio en ...
Amplitude and Phase of Tightly Focused Laser Beams in Turbid Media
... the focal spot along both lateral and axial dimensions [5]. Current formulations of diffraction theory, being limited to homogeneous media, cannot describe these important changes to the focal volume. Monte Carlo methods can be used to solve the radiative transport equation by simulating light propa ...
... the focal spot along both lateral and axial dimensions [5]. Current formulations of diffraction theory, being limited to homogeneous media, cannot describe these important changes to the focal volume. Monte Carlo methods can be used to solve the radiative transport equation by simulating light propa ...
Polarization microscopy with the LC-PolScope
... then labeling them to detect specific molecular species. This role reversal was made possible by the many spectacular advances in fluorescence imaging and the development of many vital molecular probes, particularly the green fluorescent protein, which have seemingly outshined the more traditional t ...
... then labeling them to detect specific molecular species. This role reversal was made possible by the many spectacular advances in fluorescence imaging and the development of many vital molecular probes, particularly the green fluorescent protein, which have seemingly outshined the more traditional t ...
Optical bandwidth and fabrication tolerances of multimode
... been realized [5]. Optical bandwidth as well as fabrication tolerance measurements of MMI couplers using this waveguide structure will be presented. We first consider restricted interference MMI couplers described by (6). The inputs and outputs of width w = 3 pm are positioned at W/3 and 2W/3, in or ...
... been realized [5]. Optical bandwidth as well as fabrication tolerance measurements of MMI couplers using this waveguide structure will be presented. We first consider restricted interference MMI couplers described by (6). The inputs and outputs of width w = 3 pm are positioned at W/3 and 2W/3, in or ...
June 4 - The 7th International Conference on Surface Plasmon
... an image with sub-diffraction limited (SDL) resolution [1]. In this seminal paper, Pendry showed that by using a thin metallic slab, only few tens of nanometers thick, which is excited with light near its surface plasmon (SP) resonance frequency, an image with SDL size can be obtained, due to the hi ...
... an image with sub-diffraction limited (SDL) resolution [1]. In this seminal paper, Pendry showed that by using a thin metallic slab, only few tens of nanometers thick, which is excited with light near its surface plasmon (SP) resonance frequency, an image with SDL size can be obtained, due to the hi ...
III.Principle Of Polarization-Insensitive Tunable Wavelength
... The operation of the polarization-insensitive tunable wavelength converter is shown in fig: (2). The input signal is modulated by using a Mach-Zehnder interferometer (MZI) modulator. This input signal is combined with a wavelength tunable continuous-wave pump laser using a coupler. The combined sign ...
... The operation of the polarization-insensitive tunable wavelength converter is shown in fig: (2). The input signal is modulated by using a Mach-Zehnder interferometer (MZI) modulator. This input signal is combined with a wavelength tunable continuous-wave pump laser using a coupler. The combined sign ...
2. Measurement of refractive index of liquids using fiber optic
... displacement sensor. The sensor consists of two multimode step index fibers and a mirror. The output light intensity from the receiving fiber is measured as a function of displacement of the fiber with respect to mirror in various solvents. The study shows that the light peak intensity position depe ...
... displacement sensor. The sensor consists of two multimode step index fibers and a mirror. The output light intensity from the receiving fiber is measured as a function of displacement of the fiber with respect to mirror in various solvents. The study shows that the light peak intensity position depe ...
Title of Presentation
... or elements by an amount that compensates for thermal defocus By using two different materials with very different TCE arranged as either differential expansion cylinders or rods, it is possible to move the compensating element directly Rods or cylinders must be of sufficient length ...
... or elements by an amount that compensates for thermal defocus By using two different materials with very different TCE arranged as either differential expansion cylinders or rods, it is possible to move the compensating element directly Rods or cylinders must be of sufficient length ...
Alignment Procedures for Micro
... Two basic principles for the alignment of optical- and micro-optical systems can be used, active and passive alignment. Active alignment means that the optical system properties in function are used as a feedback for closed loop control. During the alignment of a focusing lens with respect to a lase ...
... Two basic principles for the alignment of optical- and micro-optical systems can be used, active and passive alignment. Active alignment means that the optical system properties in function are used as a feedback for closed loop control. During the alignment of a focusing lens with respect to a lase ...
Free-space optical communications have distinct advantages over
... system that can avoid the distortions (reduce bandwidth, for example) or can compensate for the distortions (adaptive optics) .The mostly used AO systems are phase-only. That means that they cannot reverse the scintillation effects, but they can conjugate the phase from the aperture to the detector ...
... system that can avoid the distortions (reduce bandwidth, for example) or can compensate for the distortions (adaptive optics) .The mostly used AO systems are phase-only. That means that they cannot reverse the scintillation effects, but they can conjugate the phase from the aperture to the detector ...
ELECTRO-OPTICS
... optical wave will be subjected to different electric fields as it traverses the crystal. The modulated phase at a given time t will then be proportional to the average electric field E(t) at times from t - T to t. As a result, the transit-time-limited modulation bandwidth is = l/T. One method of red ...
... optical wave will be subjected to different electric fields as it traverses the crystal. The modulated phase at a given time t will then be proportional to the average electric field E(t) at times from t - T to t. As a result, the transit-time-limited modulation bandwidth is = l/T. One method of red ...
On the conservation of fundamental optical quantities in non
... again the four situations, now distinctively different, have been plotted. Again, the total angular momentum in the z direction, denoted by Lz, depends on the numerical aperture of the imaging system when spin angular momentum is present, as noted in [5]. However, when only orbital angular momentum i ...
... again the four situations, now distinctively different, have been plotted. Again, the total angular momentum in the z direction, denoted by Lz, depends on the numerical aperture of the imaging system when spin angular momentum is present, as noted in [5]. However, when only orbital angular momentum i ...
Optical Fiber Amplifiers
... S are added as vectors. The labels indicate the approximate value for L, S, and J in the following form: 2S+1LJ, L is denoted with a letter (S,P, D,F,G,.. for L=0,1,2,3,4...). ...
... S are added as vectors. The labels indicate the approximate value for L, S, and J in the following form: 2S+1LJ, L is denoted with a letter (S,P, D,F,G,.. for L=0,1,2,3,4...). ...
Waves & Oscillations Physics 42200 Spring 2015 Semester Lecture 36 – Interference
... – The amplitude of the optical field at any point in the direction of propagation is the superposition of all wavelets, considering their amplitudes and relative phases. ...
... – The amplitude of the optical field at any point in the direction of propagation is the superposition of all wavelets, considering their amplitudes and relative phases. ...
Light Scattering
... divided by the magnitude, |n|, of the index of refraction (nr − ini ). In fact, the scattering properties of light depend on the size to wavelength ratio. For this reason we define the size parameter, x as: x= ...
... divided by the magnitude, |n|, of the index of refraction (nr − ini ). In fact, the scattering properties of light depend on the size to wavelength ratio. For this reason we define the size parameter, x as: x= ...
An analogy strategy for transformation optics Yao Chen Liu
... Transformation optics has aroused interest from a wide spectrum of scientific communities [1–10]. The term was coined based on the fact that Maxwell’s equations are form-invariant under coordinate transformations [2], meaning electromagnetic waves in one coordinate system can be mapped into another o ...
... Transformation optics has aroused interest from a wide spectrum of scientific communities [1–10]. The term was coined based on the fact that Maxwell’s equations are form-invariant under coordinate transformations [2], meaning electromagnetic waves in one coordinate system can be mapped into another o ...
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.