Construction and operation - the UQ Bose
... operating at a wavelength of λ = 1064nm, with accurate control of the power in both beams via a feedback loop. The evaporation of neutral atoms of ...
... operating at a wavelength of λ = 1064nm, with accurate control of the power in both beams via a feedback loop. The evaporation of neutral atoms of ...
Lasers, intense light source systems and LEDs
... Members of staff and patients or clients may suffer from inhalation effects of smoke and vapour (plume) following tissue destruction. The debris contained in the plume Lasers, intense light source systems and LEDs in medical, surgical, dental and aesthetic practices ...
... Members of staff and patients or clients may suffer from inhalation effects of smoke and vapour (plume) following tissue destruction. The debris contained in the plume Lasers, intense light source systems and LEDs in medical, surgical, dental and aesthetic practices ...
Diagnosing Early Keratoconus
... normal corneas; (2) keratoconic corneas have a much thicker epithelium overall; and (3) keratoconus suspects have a thicker epithelium as well. These findings may help us develop guiding parameters to detect early, subtle cases of keratoconus. By using Optovue’s ETM routinely, in addition to when we ...
... normal corneas; (2) keratoconic corneas have a much thicker epithelium overall; and (3) keratoconus suspects have a thicker epithelium as well. These findings may help us develop guiding parameters to detect early, subtle cases of keratoconus. By using Optovue’s ETM routinely, in addition to when we ...
Extended Nijboer-Zernike representation of the vector field in the
... wave exiting from the optical system are represented in terms of a Zernike polynomial expansion over the exit pupil of the system; a set of generally complex coefficients is needed for a full description of the field in the exit pupil. The field components in the focal region are obtained by means of th ...
... wave exiting from the optical system are represented in terms of a Zernike polynomial expansion over the exit pupil of the system; a set of generally complex coefficients is needed for a full description of the field in the exit pupil. The field components in the focal region are obtained by means of th ...
Lecture-10-Optics
... It is therefore also the same condition for a maximum in the reflected intensity for multiple beams. Define the coefficient of finesse F as follows: ...
... It is therefore also the same condition for a maximum in the reflected intensity for multiple beams. Define the coefficient of finesse F as follows: ...
Jonesresub
... Polarization, the vectorial aspect of light, is a core topic in physical optics that is the subject of much fundamental research today. It is an important dimension in studies of light in all of its complexity, as well as in the interaction of light fields with matter. It is also an important compon ...
... Polarization, the vectorial aspect of light, is a core topic in physical optics that is the subject of much fundamental research today. It is an important dimension in studies of light in all of its complexity, as well as in the interaction of light fields with matter. It is also an important compon ...
Laser cooling and trapping of atoms
... Doppler shift seen by the moving atoms is ωD = −k · v (note that k opposite to v produces a positive Doppler shift). The force is thus velocity-dependent, and the experimenter’s task is to exploit this dependence to the desired goal, for example, optical friction for laser cooling. The spontaneo ...
... Doppler shift seen by the moving atoms is ωD = −k · v (note that k opposite to v produces a positive Doppler shift). The force is thus velocity-dependent, and the experimenter’s task is to exploit this dependence to the desired goal, for example, optical friction for laser cooling. The spontaneo ...
Topics in Adaptive Optics
... SCIDAR (Avila et al., 1997; Fuchs et al., 1998) and Low Layer SCIDAR (Avila et al., 2008). Those techniques make use of statistical analysis of double star scintillation images recorded either on the telescope pupil plane (for the classical SCIDAR) or on a virtual plane located a few kilometers belo ...
... SCIDAR (Avila et al., 1997; Fuchs et al., 1998) and Low Layer SCIDAR (Avila et al., 2008). Those techniques make use of statistical analysis of double star scintillation images recorded either on the telescope pupil plane (for the classical SCIDAR) or on a virtual plane located a few kilometers belo ...
Honors Physics Final Review Spring 2015
... The reference line perpendicular to the reflective surface is called the ___ ans: normal How is a plane mirror and a convex mirror alike? ans: both form virtual images only ...
... The reference line perpendicular to the reflective surface is called the ___ ans: normal How is a plane mirror and a convex mirror alike? ans: both form virtual images only ...
pdf file
... Saturation of THz intensity under large pump light fluence have been observed in ZnTe crystals and attributed to two-photon absorption[13, 14]. Loss of the pump light energy due to two-photon absorption and absorption of THz waves by the carriers generated by the twophoton absorption can limit the a ...
... Saturation of THz intensity under large pump light fluence have been observed in ZnTe crystals and attributed to two-photon absorption[13, 14]. Loss of the pump light energy due to two-photon absorption and absorption of THz waves by the carriers generated by the twophoton absorption can limit the a ...
Investigation of bending loss in a single
... Faustini and Martini [10], studied the oscillation behaviour of bending loss against 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 p ...
... Faustini and Martini [10], studied the oscillation behaviour of bending loss against 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 p ...
Metal Nanoparticles for Microscopy and Spectroscopy
... applied electric field of a light wave. In this chapter, we are concerned with small particles and structures that are, however, large enough that the metal’s response can be described by its bulk dielectric response. Deviations from the bulk response due to the small size of the nanoparticle are usu ...
... applied electric field of a light wave. In this chapter, we are concerned with small particles and structures that are, however, large enough that the metal’s response can be described by its bulk dielectric response. Deviations from the bulk response due to the small size of the nanoparticle are usu ...
Theoretical criteria for scattering dark states in nanostructured particles Chia Wei Hsu,
... Consider a linearly polarized planewave incident on an obstacle that is spherical or nonspherical but much smaller than the wavelength of the incident light. This obstacle can have arbitrary number of layers and material composition; in the small-obstacle case, it can also be a cluster of particles. ...
... Consider a linearly polarized planewave incident on an obstacle that is spherical or nonspherical but much smaller than the wavelength of the incident light. This obstacle can have arbitrary number of layers and material composition; in the small-obstacle case, it can also be a cluster of particles. ...
Radiative Transfer Theory at Optical and Microwave
... Radiative Transfer Theory • Case considered: – horizontally infinite but vertically finite plane parallel medium (air) embedded with infinitessimal oriented scattering objects at low density – canopy lies over soil surface (lower boundary) – assume horizontal homogeneity ...
... Radiative Transfer Theory • Case considered: – horizontally infinite but vertically finite plane parallel medium (air) embedded with infinitessimal oriented scattering objects at low density – canopy lies over soil surface (lower boundary) – assume horizontal homogeneity ...
The Nonlinear Optical Susceptibility
... beam at frequency ω is converted to radiation at the second-harmonic frequency 2ω. One common use of second-harmonic generation is to convert the output of a fixed-frequency laser to a different spectral region. For example, the Nd:YAG laser operates in the near infrared at a wavelength of 1.06 μm. ...
... beam at frequency ω is converted to radiation at the second-harmonic frequency 2ω. One common use of second-harmonic generation is to convert the output of a fixed-frequency laser to a different spectral region. For example, the Nd:YAG laser operates in the near infrared at a wavelength of 1.06 μm. ...
Applications of Wavefront Technologies in Ophthalmology
... complete refractive status of the eye, including imperfections in the optical system such as defocus, regular astigmatism, and higher-order aberrations (HOAs). A wavefront aberration is the deviation of a wavefront that originates from a measured optical system in comparison with a reference wavefro ...
... complete refractive status of the eye, including imperfections in the optical system such as defocus, regular astigmatism, and higher-order aberrations (HOAs). A wavefront aberration is the deviation of a wavefront that originates from a measured optical system in comparison with a reference wavefro ...
Ultrahigh-Q toroidal microresonators for cavity quantum
... are confined to the interior dielectric in whispering-gallerytype resonators, the atom can interact only with the evanescent field of the cavity mode. In the following discussion, the atom is assumed to be located near the resonator surface at the location where the electric field strength is larges ...
... are confined to the interior dielectric in whispering-gallerytype resonators, the atom can interact only with the evanescent field of the cavity mode. In the following discussion, the atom is assumed to be located near the resonator surface at the location where the electric field strength is larges ...
Structure and symmetry in coherent perfect polarization rotation
... to self-dual spectral singularities [2,8] of the S matrix. The CPA threshold’s dependence on the depth of the sample is well understood theoretically, and this dependence has been modeled in complex (but still linear) media, such as gold-silica composites and other plasmonic systems [9,10], and nonl ...
... to self-dual spectral singularities [2,8] of the S matrix. The CPA threshold’s dependence on the depth of the sample is well understood theoretically, and this dependence has been modeled in complex (but still linear) media, such as gold-silica composites and other plasmonic systems [9,10], and nonl ...
Graphene Plasmonic Metasurfaces to Steer Infrared Light www.nature.com/scientificreports Zubin Li
... mirror. The bare graphene ribbons on a dielectric layer only provide a phase modulation range of about π (Supplementary Information)56, because of its intrinsic Lorenz-like resonance. To cover the full phase space, one can utilize V-shape antennas or geometric phase by rotating the structures. Howe ...
... mirror. The bare graphene ribbons on a dielectric layer only provide a phase modulation range of about π (Supplementary Information)56, because of its intrinsic Lorenz-like resonance. To cover the full phase space, one can utilize V-shape antennas or geometric phase by rotating the structures. Howe ...
Resonant-wavelength control and optical
... erage transverse phase is incorporated in all layers. The solution process is iterated alternately until all the physics of the structure are self-consistently satisfied. Computing the resonant wavelength, threshold gain, and resonant-mode profile are extremely fast, and takes less than 10 s on a 35 ...
... erage transverse phase is incorporated in all layers. The solution process is iterated alternately until all the physics of the structure are self-consistently satisfied. Computing the resonant wavelength, threshold gain, and resonant-mode profile are extremely fast, and takes less than 10 s on a 35 ...
Chapter 18 - Handbook of Optics
... was developed by Wynne (1965, 1974) for the region of the spectrum extending from 365 to 1014 nm. It is used to extend the field of a parabolic mirror. Versions for a Ritchey-Chretien primary also exist. The corrector is able to correct spherical aberration, coma, astigmatism, and field curvature wh ...
... was developed by Wynne (1965, 1974) for the region of the spectrum extending from 365 to 1014 nm. It is used to extend the field of a parabolic mirror. Versions for a Ritchey-Chretien primary also exist. The corrector is able to correct spherical aberration, coma, astigmatism, and field curvature wh ...
Get PDF - OSA Publishing
... calculation method. Figure 2 shows a typical comparison between calculated and measured spectra in a fiber containing a Bragg grating. A first order grating was inscribed in the center of the core of a standard telecom fiber. For the inscription a femtosecond laser system (HighQ Laser Femtoregen IC3 ...
... calculation method. Figure 2 shows a typical comparison between calculated and measured spectra in a fiber containing a Bragg grating. A first order grating was inscribed in the center of the core of a standard telecom fiber. For the inscription a femtosecond laser system (HighQ Laser Femtoregen IC3 ...
Measurement of the wave-front aberration of the eye by a fast
... The optical performance of the human eye is not ideal: it has long been recognized that the eye is diffraction limited only for relatively small pupil diameters.1–5 For larger-diameter pupils the aberrations of the eye’s optics come into play, limiting visual acuity and contrast sensitivity. With th ...
... The optical performance of the human eye is not ideal: it has long been recognized that the eye is diffraction limited only for relatively small pupil diameters.1–5 For larger-diameter pupils the aberrations of the eye’s optics come into play, limiting visual acuity and contrast sensitivity. With th ...
soliton - Széchenyi István Egyetem
... placed in the transmission line distance of the amplifiers should be less then the soliton dispersion length dispersion shifted fibers or filters for reshaping quantum noise arise spontaneous emission noise Gordon—House jitter ESM Zilina 2008 ...
... placed in the transmission line distance of the amplifiers should be less then the soliton dispersion length dispersion shifted fibers or filters for reshaping quantum noise arise spontaneous emission noise Gordon—House jitter ESM Zilina 2008 ...
The Theory of Diffraction Tomography
... Tomography is the three-dimensional reconstruction of an object from images taken at different angles. The term classical tomography is used, when the imaging beam travels in straight lines through the object. This assumption is valid for light with short wavelengths, for example in xray tomography. ...
... Tomography is the three-dimensional reconstruction of an object from images taken at different angles. The term classical tomography is used, when the imaging beam travels in straight lines through the object. This assumption is valid for light with short wavelengths, for example in xray tomography. ...
Optical coherence tomography
Optical coherence tomography (OCT) is an established medical imaging technique that uses light to capture micrometer-resolution, three-dimensional images from within optical scattering media (e.g., biological tissue). Optical coherence tomography is based on low-coherence interferometry, typically employing near-infrared light. The use of relatively long wavelength light allows it to penetrate into the scattering medium. Confocal microscopy, another optical technique, typically penetrates less deeply into the sample but with higher resolution.Depending on the properties of the light source (superluminescent diodes, ultrashort pulsed lasers, and supercontinuum lasers have been employed), optical coherence tomography has achieved sub- micrometer resolution (with very wide-spectrum sources emitting over a ~100 nm wavelength range).Optical coherence tomography is one of a class of optical tomographic techniques. A relatively recent implementation of optical coherence tomography, frequency-domain optical coherence tomography, provides advantages in signal-to-noise ratio, permitting faster signal acquisition. Commercially available optical coherence tomography systems are employed in diverse applications, including art conservation and diagnostic medicine, notably in ophthalmology and optometry where it can be used to obtain detailed images from within the retina. Recently it has also begun to be used in interventional cardiology to help diagnose coronary artery disease. It has also shown promise in dermatology to improve the diagnostic process.