Tuning the polarization state of light via time retardation with...
... (Received 17 February 2013; published 15 October 2013) We report here an approach to tune efficiently the phase difference of light in two orthogonal directions, ϕ, by controlling the time retardation with a microstructured surface made of L-shaped metallic patterns. The time retardation through th ...
... (Received 17 February 2013; published 15 October 2013) We report here an approach to tune efficiently the phase difference of light in two orthogonal directions, ϕ, by controlling the time retardation with a microstructured surface made of L-shaped metallic patterns. The time retardation through th ...
Full Paper
... frequency applied to the acoustic transducer and the resultant acoustic wave frequency as shown in equation 7.Increase in acoustic frequency will leads to decrease in centre transmission wavelength.The frequency and tuned wavelength are varying in inverse fashion but this relation is not exact becau ...
... frequency applied to the acoustic transducer and the resultant acoustic wave frequency as shown in equation 7.Increase in acoustic frequency will leads to decrease in centre transmission wavelength.The frequency and tuned wavelength are varying in inverse fashion but this relation is not exact becau ...
GaAs-based polarization modulators for microwave photonic
... integrated devices, which makes them only suited to external modulation applications until this day. With the progresses in compound material growth and CMOS compatible process technologies, GaAs became an ideal material candidate for research development of EOMs, owing to its environmental stabilit ...
... integrated devices, which makes them only suited to external modulation applications until this day. With the progresses in compound material growth and CMOS compatible process technologies, GaAs became an ideal material candidate for research development of EOMs, owing to its environmental stabilit ...
A day in the life of a Laser scientist
... Laser Light has some distinctive features compared to other light sources Monochromatic – laser light has very narrow spectral range ( ie very pure colour) due to the discrete energy levels in the excited atoms or ions which make up the laser medium High directionality - laser light has very low div ...
... Laser Light has some distinctive features compared to other light sources Monochromatic – laser light has very narrow spectral range ( ie very pure colour) due to the discrete energy levels in the excited atoms or ions which make up the laser medium High directionality - laser light has very low div ...
Theory and Practice of Scanning Optical Microscopy - X
... approximation, that is the depth of focus is exceedingly large. As the beam propagates the radiation diffracts away from the axis, but power is simultaneously diffracted inwards from the strong outer rings. A beam with intensity distribution given by J ~(v) will propagate without spreading as a resu ...
... approximation, that is the depth of focus is exceedingly large. As the beam propagates the radiation diffracts away from the axis, but power is simultaneously diffracted inwards from the strong outer rings. A beam with intensity distribution given by J ~(v) will propagate without spreading as a resu ...
Micro Systems Design GmbH presents - LAS-CAD
... Numerical analysis of the 3D nonlinear interaction of the optical fields in a cavity with thermal effects, such as the temperaturedependent refractive index distribution, absorbed pump power distribution, doping distribution, population inversion etc. is of growing importance to optimize SSL sytems ...
... Numerical analysis of the 3D nonlinear interaction of the optical fields in a cavity with thermal effects, such as the temperaturedependent refractive index distribution, absorbed pump power distribution, doping distribution, population inversion etc. is of growing importance to optimize SSL sytems ...
How to Use LASCAD Software for LASer Cavity Analysis and Design LAS
... Numerical analysis of the 3D nonlinear interaction of the optical fields in a cavity with thermal effects, such as the temperaturedependent refractive index distribution, absorbed pump power distribution, doping distribution, population inversion etc. is of growing importance to optimize SSL sytems ...
... Numerical analysis of the 3D nonlinear interaction of the optical fields in a cavity with thermal effects, such as the temperaturedependent refractive index distribution, absorbed pump power distribution, doping distribution, population inversion etc. is of growing importance to optimize SSL sytems ...
Applications(2)
... • Optical fiber SPR probes present the highest level of miniaturization of SPR devices, allowing for chemical and biological sensing in inaccessible locations. The ability to transmit optical signals over a long distance makes the use of optical fibers very attractive. Fiber optic waveguides have a ...
... • Optical fiber SPR probes present the highest level of miniaturization of SPR devices, allowing for chemical and biological sensing in inaccessible locations. The ability to transmit optical signals over a long distance makes the use of optical fibers very attractive. Fiber optic waveguides have a ...
Optical coherence tomography (OCT): a review
... early 1960’s, physicians gained a new surgical instrument. The development of fiber optics led to the manufacture of endoscopes that permit direct viewing of internal organs deep in the body. In the modern clinical laboratory, new optical technologies facilitate the chemical analysis of tissue sampl ...
... early 1960’s, physicians gained a new surgical instrument. The development of fiber optics led to the manufacture of endoscopes that permit direct viewing of internal organs deep in the body. In the modern clinical laboratory, new optical technologies facilitate the chemical analysis of tissue sampl ...
Analysis of optical interferometric displacement detection in nanoelectromechanical systems
... U共t兲 from its equilibrium position. For simplicity, we shall assume that the resonator is driven at a single frequency close to its resonance frequency 0, i.e., U共t兲 = ueit. Most commonly,6,15,17,19,30 NEMS beams are fabricated in silicon-on-insulator 共SOI兲 heterostructures with metallization la ...
... U共t兲 from its equilibrium position. For simplicity, we shall assume that the resonator is driven at a single frequency close to its resonance frequency 0, i.e., U共t兲 = ueit. Most commonly,6,15,17,19,30 NEMS beams are fabricated in silicon-on-insulator 共SOI兲 heterostructures with metallization la ...
Living specimen tomography by digital holographic
... In the present work, the specimen is observed in a specifically designed chamber, principally composed by two microscope coverslips orthogonal to the optical axis. An aluminum frame maintains the two coverslips 4 mm distant, while fixations assure the watetightness of the chamber. One lateral side o ...
... In the present work, the specimen is observed in a specifically designed chamber, principally composed by two microscope coverslips orthogonal to the optical axis. An aluminum frame maintains the two coverslips 4 mm distant, while fixations assure the watetightness of the chamber. One lateral side o ...
Everything You Always Wanted to Know About Optical
... • Recently augmented with “laser optimized” (OM3) MMF • Uses aqua colored cables, rather than the traditional orange. • Designed to achieve 10Gbps at 300 meters with VCSEL lasers. ...
... • Recently augmented with “laser optimized” (OM3) MMF • Uses aqua colored cables, rather than the traditional orange. • Designed to achieve 10Gbps at 300 meters with VCSEL lasers. ...
Spatially resolved measurement of femtosecond
... was produced, following Eaton et al. [13] for similar writing parameters. Figure 4(b) shows a well-separated peak that corresponds to an average grating line with a main feature size of 10 μm matching well the optical microscope measurements in Fig. 3. According to Eq. (3), a lateral resolution of ∼ ...
... was produced, following Eaton et al. [13] for similar writing parameters. Figure 4(b) shows a well-separated peak that corresponds to an average grating line with a main feature size of 10 μm matching well the optical microscope measurements in Fig. 3. According to Eq. (3), a lateral resolution of ∼ ...
Non-linear Optical Microscopy and Spectroscopy for
... imaging. Of particular interest has been the study of fluorescent xenobiotics in human skin using two-photon fluorescence laser scanning microscopy. The background is the desire to develop new non-invasive tools to study topical drug delivery and improve the understanding of mechanisms involved in con ...
... imaging. Of particular interest has been the study of fluorescent xenobiotics in human skin using two-photon fluorescence laser scanning microscopy. The background is the desire to develop new non-invasive tools to study topical drug delivery and improve the understanding of mechanisms involved in con ...
Measurement considerations when specifying
... of incidence uncertainty (µo), and wavelength uncertainty (µw). A suggested approach to gauging spectral performance of most AR coatings is to perform measurements in reflection over the complete angle range of the specification and a measurement in transmission to verify loss at normal incidence. F ...
... of incidence uncertainty (µo), and wavelength uncertainty (µw). A suggested approach to gauging spectral performance of most AR coatings is to perform measurements in reflection over the complete angle range of the specification and a measurement in transmission to verify loss at normal incidence. F ...
Real-time phase measurement of optical vortices based on
... sampling array plate can be directly extracted from the inverse Fourier transform of the farfield diffraction intensity pattern. However, scanning the whole surface is time-consuming, and only the phase of sampled point can be measured. The measured phase image quality can be increased with smaller ...
... sampling array plate can be directly extracted from the inverse Fourier transform of the farfield diffraction intensity pattern. However, scanning the whole surface is time-consuming, and only the phase of sampled point can be measured. The measured phase image quality can be increased with smaller ...
lecture_five_2016
... example in many crystals the refractive index depends on direction of propagation. This is called “double refraction” or “birefringence”. A birefringent crystal such as calcite will divide an incident beam of monochromatic light into two separate beams having polarizations perpendicular to each othe ...
... example in many crystals the refractive index depends on direction of propagation. This is called “double refraction” or “birefringence”. A birefringent crystal such as calcite will divide an incident beam of monochromatic light into two separate beams having polarizations perpendicular to each othe ...
Chapter 6 Experiment 4: Wave Interference
... large compared to the dimensions of the obstacle in the light path. If you drop these conditions, the light phenomena observed are described by the Fresnel formalism and the light waves are represented by spherical waves rather than plane waves. Figure 6.9 shows the spherical surface corresponding t ...
... large compared to the dimensions of the obstacle in the light path. If you drop these conditions, the light phenomena observed are described by the Fresnel formalism and the light waves are represented by spherical waves rather than plane waves. Figure 6.9 shows the spherical surface corresponding t ...
Investigation of nanoscale structural alterations of cell nucleus as an
... various versions of quantitative phase microscopy and digital holographic microscopy (DHM) [18]. The light interference effect is well known to detect changes in optical path length even at sub-nanometer sensitivity. The second form is based on the analysis of Fourier space (or K-space, the conjugat ...
... various versions of quantitative phase microscopy and digital holographic microscopy (DHM) [18]. The light interference effect is well known to detect changes in optical path length even at sub-nanometer sensitivity. The second form is based on the analysis of Fourier space (or K-space, the conjugat ...
Physics 228 Today: Polarization, Scattering
... Polarizing Visible Light Although the wavelength of visible light is < 1 μm, we can linearly polarize it using arrays of molecules, as in a polaroid filter. We can think of this similarly to microwaves and the metal plate: if the electric field orientation can accelerate electrons in the material - ...
... Polarizing Visible Light Although the wavelength of visible light is < 1 μm, we can linearly polarize it using arrays of molecules, as in a polaroid filter. We can think of this similarly to microwaves and the metal plate: if the electric field orientation can accelerate electrons in the material - ...
The HeNe Laser
... In order to remove a mirror, loosen this screw while making sure to keep the mirror in place with your fingers. Do not touch the mirror surface, only the black disk that the mirror is attached to. Gently remove the mirror and place it in the mirror holder. To put a mirror in, just do the opposite as ...
... In order to remove a mirror, loosen this screw while making sure to keep the mirror in place with your fingers. Do not touch the mirror surface, only the black disk that the mirror is attached to. Gently remove the mirror and place it in the mirror holder. To put a mirror in, just do the opposite as ...
Paraxial propagation of Mathieu beams through an apertured ABCD
... Keywords: Nondiffracting beams; Mathieu beams; Angular spectrum; Bessel beams; Collins formula; Aperture function ...
... Keywords: Nondiffracting beams; Mathieu beams; Angular spectrum; Bessel beams; Collins formula; Aperture function ...
Development of a spin-exchange relaxation free magnetometer with
... apparatus shown in Fig. 1 is used. The experiment was performed with a glass cell containing K vapour, 600-Torr He buffer gas to reduce the rate that atoms in the cell diffuse towards its wall, and 15-Torr N2 to improve optical pumping by quenching. The cell was placed inside a three-layer set of th ...
... apparatus shown in Fig. 1 is used. The experiment was performed with a glass cell containing K vapour, 600-Torr He buffer gas to reduce the rate that atoms in the cell diffuse towards its wall, and 15-Torr N2 to improve optical pumping by quenching. The cell was placed inside a three-layer set of th ...