Qualifying Exam Peter Langston January 21 , 2010
... acting on the sample during the pulse Tunneling probability is dictated by the instantaneous value of the field intensity and predicts a continuous variation of the ionization probability with photon energy ...
... acting on the sample during the pulse Tunneling probability is dictated by the instantaneous value of the field intensity and predicts a continuous variation of the ionization probability with photon energy ...
9.2. Summary - Stanford Synchrotron Radiation Lightsource
... a) planar take-off mirrors (if these were 300 m farther downstream they would need to be substantially longer, up to 1 meter/facet); b) refractive lenses (whether solid state or gaseous, such lenses are efficiencylimited by their aperture diameter - even at distances of ~50 m from the undulator thei ...
... a) planar take-off mirrors (if these were 300 m farther downstream they would need to be substantially longer, up to 1 meter/facet); b) refractive lenses (whether solid state or gaseous, such lenses are efficiencylimited by their aperture diameter - even at distances of ~50 m from the undulator thei ...
lens theory - Laser Components
... TEMoo waists and locations. In particular, "near-Gaussian" pulsed solid state lasers are many times diffraction limited as may be verified by comparing the manufacturers beam diameter and full angle divergence specifications. Single-stage excimer and copper vapor lasers are even more divergent, even ...
... TEMoo waists and locations. In particular, "near-Gaussian" pulsed solid state lasers are many times diffraction limited as may be verified by comparing the manufacturers beam diameter and full angle divergence specifications. Single-stage excimer and copper vapor lasers are even more divergent, even ...
Scanning Electron Microscope - i-Explore International Research
... Field emission gun: FEG cathode consists of a sharp metal usually Tungsten tip with a radius of less than 100 nm. A potential difference (V1= extraction voltage) is established between the first anode and the tip. The result is an electric field, concentrated at the tip, which facilitates electron e ...
... Field emission gun: FEG cathode consists of a sharp metal usually Tungsten tip with a radius of less than 100 nm. A potential difference (V1= extraction voltage) is established between the first anode and the tip. The result is an electric field, concentrated at the tip, which facilitates electron e ...
Introduction: When waves encounter obstacles (or openings), they
... shadow of an obstacle is not commonly observed because the light sources are not point sources and secondly the obstacles used are of very large size compared to the wavelength of light. If a shadow of an obstacle is cast by an extended source, say a frosted electric bulb, light from every point on ...
... shadow of an obstacle is not commonly observed because the light sources are not point sources and secondly the obstacles used are of very large size compared to the wavelength of light. If a shadow of an obstacle is cast by an extended source, say a frosted electric bulb, light from every point on ...
infos on Underwater optics theory
... Water density has two main consequences: the first is due to the application of Archimedes Principle: the apparent weight of an apparatus immersed in water is equal to the weight of the apparatus in air less the weight of the volume of water that it displaces. For example, a housing with a volume of ...
... Water density has two main consequences: the first is due to the application of Archimedes Principle: the apparent weight of an apparatus immersed in water is equal to the weight of the apparatus in air less the weight of the volume of water that it displaces. For example, a housing with a volume of ...
Nanosecond laser-induced breakdown in pure and - AS
... For most of our measurements, we used a single laser pulse to damage the sample. The laser pulses were needed on-demand at random times. Although our Nd:YAG laser could run in a truly single-shot mode, the injection seeding control system requires constant feedback at the laser’s normal repetition r ...
... For most of our measurements, we used a single laser pulse to damage the sample. The laser pulses were needed on-demand at random times. Although our Nd:YAG laser could run in a truly single-shot mode, the injection seeding control system requires constant feedback at the laser’s normal repetition r ...
High refractive index Fresnel lens on a fiber fabricated by
... Lensed fibers have been used for a long time in integrated optics to improve coupling efficiency to optical chips [1]. They are also used as probes in various applications such as optical trapping [2], endoscopic imaging [3], optical coherence tomography [4] and glucose sensing [5]. The major limita ...
... Lensed fibers have been used for a long time in integrated optics to improve coupling efficiency to optical chips [1]. They are also used as probes in various applications such as optical trapping [2], endoscopic imaging [3], optical coherence tomography [4] and glucose sensing [5]. The major limita ...
External Cavity Mode-locked Semiconductor Lasers For
... in the College of Optics & Photonics at the University of Central Florida Orlando, Florida ...
... in the College of Optics & Photonics at the University of Central Florida Orlando, Florida ...
An accurate technique to record the angular distribution of
... light are converted back by this quarter-waveplate to mutually perpendicular linear components. The polarizer in front of the fiber is used in that case to select the linear polarization that corresponds to either of the helical channels of the scattered light. In experiments with circularly polariz ...
... light are converted back by this quarter-waveplate to mutually perpendicular linear components. The polarizer in front of the fiber is used in that case to select the linear polarization that corresponds to either of the helical channels of the scattered light. In experiments with circularly polariz ...
The optics and performance of dual-focus fluorescence correlation
... collection efficiency function (CEF). For rapidly rotating molecules with rotational diffusion times much faster than their fluorescence decay time, the MDF is well approximated by the simple product of the excitation light intensity distribution with the CEF, and we will limit our considerations t ...
... collection efficiency function (CEF). For rapidly rotating molecules with rotational diffusion times much faster than their fluorescence decay time, the MDF is well approximated by the simple product of the excitation light intensity distribution with the CEF, and we will limit our considerations t ...
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 ...
Polarization of Light: from Basics to Instruments
... Part III: Optical components, polarizers – Polaroids, like in sunglasses! ...
... Part III: Optical components, polarizers – Polaroids, like in sunglasses! ...
Transformation-designed optical elements
... object and image surfaces, whereas the transformation designed element has planar object and image planes that better match typical detector arrays, and display formats. The cylindrical or oblique-cut devices magnify in only one dimension with magnification directly related to the sample geometry, w ...
... object and image surfaces, whereas the transformation designed element has planar object and image planes that better match typical detector arrays, and display formats. The cylindrical or oblique-cut devices magnify in only one dimension with magnification directly related to the sample geometry, w ...
here - Optoelectronics Research Centre
... a commercial supercontinuum SC450 (Fianium, UK) source, its performance in terms of its interference signal shape and its relative intensity noise (RIN) was compared with two other broadband sources, a semiconductor optical amplifier (SOA) and an erbium-doped fibre amplifier (EDFA). As a measure of ...
... a commercial supercontinuum SC450 (Fianium, UK) source, its performance in terms of its interference signal shape and its relative intensity noise (RIN) was compared with two other broadband sources, a semiconductor optical amplifier (SOA) and an erbium-doped fibre amplifier (EDFA). As a measure of ...
... hampers our ability to selectively optically address nanoscale features separated by less than half the wavelength of light. The field of plasmonics offers a unique opportunity for bridging the gap between the limit of diffraction and the nanometer scale. Plasmonic metallic nanoantennas can efficien ...
PDF only - at www.arxiv.org.
... interface for a specific emission pattern and present several designs of optimal AR coatings based on diffractive metasurfaces[7–13]. More importantly, our extensive numerical study and analytical arguments suggest the existence of a fundamental limit to the overall interface transparency, which dep ...
... interface for a specific emission pattern and present several designs of optimal AR coatings based on diffractive metasurfaces[7–13]. More importantly, our extensive numerical study and analytical arguments suggest the existence of a fundamental limit to the overall interface transparency, which dep ...
Quantum coherence-assisted propagation of surface plasmon polaritons
... jai and jbi. We select the three-level emitter such that the jai $ jbi transition is resonantly coupled (near-field dipole-coupling) to the plasmon mode of the metal surface and the emission from this transition is efficiently transferred to SPPs. ...
... jai and jbi. We select the three-level emitter such that the jai $ jbi transition is resonantly coupled (near-field dipole-coupling) to the plasmon mode of the metal surface and the emission from this transition is efficiently transferred to SPPs. ...
