Optical pumping of a lithium atomic beam for atom interferometry
... the light source, and this experiment was rapidly performed [7, 8]. This arrangement was sufficient to produce a strong population difference among the ground state sublevels and this difference was used to detect magnetic resonance [9]. In the following years, most optical pumping experiments were ...
... the light source, and this experiment was rapidly performed [7, 8]. This arrangement was sufficient to produce a strong population difference among the ground state sublevels and this difference was used to detect magnetic resonance [9]. In the following years, most optical pumping experiments were ...
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... imaged onto the input face of the crystal, thus creating a partially coherent pixel-like input intensity pattern [18]. The extraordinarily polarized probe beam (e-beam) is sent through a transmission vortex mask with unit topological charge, and then focused onto the crystal input face, propagating ...
... imaged onto the input face of the crystal, thus creating a partially coherent pixel-like input intensity pattern [18]. The extraordinarily polarized probe beam (e-beam) is sent through a transmission vortex mask with unit topological charge, and then focused onto the crystal input face, propagating ...
Lab 7: Fabry-Perot Interferometer
... combine equations 4 and 7 (for n = 1 and θ = 0) more (or less) node is accommodated. to get δ = 4πd/λ. For small changes in this wavelength we can differentiate the above expression to The first way to define free spectral range is to call get: ∆δ = 4πd(∆λ)/λ2 . If we solve this expression it the ch ...
... combine equations 4 and 7 (for n = 1 and θ = 0) more (or less) node is accommodated. to get δ = 4πd/λ. For small changes in this wavelength we can differentiate the above expression to The first way to define free spectral range is to call get: ∆δ = 4πd(∆λ)/λ2 . If we solve this expression it the ch ...
The Fabry-Pérot Interferometer
... The usual situation now is, that the light completely fails the pinhole, the diameter of which being only 30 µm. Switch off the lights and look from the side on the edge of the pinhole. It shimmers faintly reddish. With the two adjustment screws you can make the shimmer brighter till finally pinhole ...
... The usual situation now is, that the light completely fails the pinhole, the diameter of which being only 30 µm. Switch off the lights and look from the side on the edge of the pinhole. It shimmers faintly reddish. With the two adjustment screws you can make the shimmer brighter till finally pinhole ...
Enhanced fiber coupled laser power and brightness for
... Advances in both diode laser design and packaging technology, particularly thermal management, are needed to enhance the brightness of fiber coupled diode lasers while maintaining the small size and light weight required for defense applications. The principles of design for high efficiency fiber co ...
... Advances in both diode laser design and packaging technology, particularly thermal management, are needed to enhance the brightness of fiber coupled diode lasers while maintaining the small size and light weight required for defense applications. The principles of design for high efficiency fiber co ...
Optical Interferometers
... pathlengths for the two beams ∆l , k = 2πn/λ is the wave number, λ is the wavelength of light in vacuum, and n is the refractive index of the optical medium (in our case - air). Mirror M2 is mounted on a precision traveling platform. Imagine that we adjust its position (by turning the micrometer scr ...
... pathlengths for the two beams ∆l , k = 2πn/λ is the wave number, λ is the wavelength of light in vacuum, and n is the refractive index of the optical medium (in our case - air). Mirror M2 is mounted on a precision traveling platform. Imagine that we adjust its position (by turning the micrometer scr ...
Holography
... The biggest challenge of the on-axis holography is the twin-images: a conjugate image locating right in front of the true image. Instead of sending the reference beam and object beam in line, Leith and Upatnieks proposed separating and sending them at different angles. However, to separate the beam ...
... The biggest challenge of the on-axis holography is the twin-images: a conjugate image locating right in front of the true image. Instead of sending the reference beam and object beam in line, Leith and Upatnieks proposed separating and sending them at different angles. However, to separate the beam ...
Two-dimensional modulational instability in photorefractive media M Saffman , Glen McCarthy
... barium niobate as the nonlinear medium. The experimental set-up is analogous to that used in our earlier studies of photorefractive soliton formation [13]. The crystal was 5 × 5 × 10 mm3 in size with the optical beam propagating along the 10 mm axis and a DC electric field of 1.1 kV applied along th ...
... barium niobate as the nonlinear medium. The experimental set-up is analogous to that used in our earlier studies of photorefractive soliton formation [13]. The crystal was 5 × 5 × 10 mm3 in size with the optical beam propagating along the 10 mm axis and a DC electric field of 1.1 kV applied along th ...
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.