Measuring the Hyperfine Splittings of Lowest Energy Atomic
... excited in stages, the first possibly being from ground to one of the first excited states discussed in this thesis, the energy of which must be precisely known to excite this specific transition. 2.0 Background 2.1 Lasers The work and experiment in this thesis relied on the use of lasers due to the ...
... excited in stages, the first possibly being from ground to one of the first excited states discussed in this thesis, the energy of which must be precisely known to excite this specific transition. 2.0 Background 2.1 Lasers The work and experiment in this thesis relied on the use of lasers due to the ...
Shedding Light on Hybrid Optics: A Tutorial in
... resolution along all three axes must be used to align the waveguide. Such equipment is bulky, expensive, and difficult to use. An alternative technique is to first attach the lens to the waveguide to produce a collimated beam in free space. This can be done economically, with minimum equipment. The ...
... resolution along all three axes must be used to align the waveguide. Such equipment is bulky, expensive, and difficult to use. An alternative technique is to first attach the lens to the waveguide to produce a collimated beam in free space. This can be done economically, with minimum equipment. The ...
Introduction to Acousto Optics
... on-line data processing and chemometrics, which has become possible with the advent of spectroscopic systems with intelligence in the form of dedicated, or in some cases, built-in microprocessors or PC's. Typically, the analysis would proceed in up to four distinct phases: data collection, data proc ...
... on-line data processing and chemometrics, which has become possible with the advent of spectroscopic systems with intelligence in the form of dedicated, or in some cases, built-in microprocessors or PC's. Typically, the analysis would proceed in up to four distinct phases: data collection, data proc ...
The orbital angular momentum of light
... mathematical origins of these forked gratings will be explored further in Chapter 2. What is perhaps most surprising about the LG modes is that they carry orbital angular momentum. A beam of light in the LG mode with index l carries orbital angular momentum equal to l~ per photon, and because l can ...
... mathematical origins of these forked gratings will be explored further in Chapter 2. What is perhaps most surprising about the LG modes is that they carry orbital angular momentum. A beam of light in the LG mode with index l carries orbital angular momentum equal to l~ per photon, and because l can ...
Electroholographic tunable volume grating in the g44
... (KLTN) doped with copper was found to be a very efficient material system for implementing EH.3 EH has originally been implemented as transmission holograms in the g11 configuration, where the electric field is applied across the width of the grating in parallel to both the grating vector and the ph ...
... (KLTN) doped with copper was found to be a very efficient material system for implementing EH.3 EH has originally been implemented as transmission holograms in the g11 configuration, where the electric field is applied across the width of the grating in parallel to both the grating vector and the ph ...
DVD Optical System Design
... before and after the lens, respectively. Subtracting the length of δ from the focal length, we can get the distances of the focal planes to the lens. This gives us a distance of 1.51mm from the laser to the collimating lens, but only a mere 0.1mm distance from the focusing lens to its focal point (m ...
... before and after the lens, respectively. Subtracting the length of δ from the focal length, we can get the distances of the focal planes to the lens. This gives us a distance of 1.51mm from the laser to the collimating lens, but only a mere 0.1mm distance from the focusing lens to its focal point (m ...
Reports for the two projects on Bisosensors have been combined
... utilizing a (110) ZnTe crystal and balanced photodetectors. The detector is operating at shot noise limit. A ± 200 V square wave biased semi-large aperture SI-GaAs emitter generates a THz pulse train in freespace propagation [8]. The setup is driven by a Coherent Mira 900 femtosecond oscillator oper ...
... utilizing a (110) ZnTe crystal and balanced photodetectors. The detector is operating at shot noise limit. A ± 200 V square wave biased semi-large aperture SI-GaAs emitter generates a THz pulse train in freespace propagation [8]. The setup is driven by a Coherent Mira 900 femtosecond oscillator oper ...
SRON presentation
... Quasi-optical components – Quarter wave plate Quarter-wave plate: linear pol. circular polarisation If linear pol. wave incident at 45o Path 1: ½ reflected by grid ...
... Quasi-optical components – Quarter wave plate Quarter-wave plate: linear pol. circular polarisation If linear pol. wave incident at 45o Path 1: ½ reflected by grid ...
Acceleration of femtosecond pulses to superluminal velocities by
... The study of the intensity and phase distribution of a converging spherical light wave passing through a circular aperture has been undertaken by several authors [1—3]. One of the most interesting results of these treatments is that the phase behaviour near the focus differs from that of a convergin ...
... The study of the intensity and phase distribution of a converging spherical light wave passing through a circular aperture has been undertaken by several authors [1—3]. One of the most interesting results of these treatments is that the phase behaviour near the focus differs from that of a convergin ...
Relativistic corrections in displacement measuring
... In displacement measuring interferometers the shift in the frequency of a light beam reflected from a mirror attached to a moving stage is used to determine the velocity of a substrate mounted to the stage, from which the displacement is simply derived through integration. Accuracy and precision of ...
... In displacement measuring interferometers the shift in the frequency of a light beam reflected from a mirror attached to a moving stage is used to determine the velocity of a substrate mounted to the stage, from which the displacement is simply derived through integration. Accuracy and precision of ...
5. Reflection, refraction and polarization
... of polarized sources, birefringent crystals are usually used. A device called a “half-wave” plate or retarder is used to rotate planepolarized light through a 180o phase angle; this device can maintain very high polarization extinction. Half-wave plates utilize three concepts. First, the superpositi ...
... of polarized sources, birefringent crystals are usually used. A device called a “half-wave” plate or retarder is used to rotate planepolarized light through a 180o phase angle; this device can maintain very high polarization extinction. Half-wave plates utilize three concepts. First, the superpositi ...
Laser beam profiler
A laser beam profiler captures, displays, and records the spatial intensity profile of a laser beam at a particular plane transverse to the beam propagation path. Since there are many types of lasers — ultraviolet, visible, infrared, continuous wave, pulsed, high-power, low-power — there is an assortment of instrumentation for measuring laser beam profiles. No single laser beam profiler can handle every power level, pulse duration, repetition rate, wavelength, and beam size.