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Quantitative phase gradient microscopy with spatially entangled photons. [PDF]
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Ophthalmic Laser Interferometry
SPIE Proceedings, 1986If the pupil of the eye is illuminated by a collimated laser beam the light returning from the eye exhibits Newton's interference fringes. This phenomenon can be used (1) to measure fundus tissue pulsations and (2) to measure the optical length of the eye.
A F. Fercher, E Roth
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Laser interferometry based seismic sensor
SPIE Proceedings, 2003Laser interferometry is one of the most sensitive and versatile techniques for small relative displacements measurement. For these reasons it is used or it is being introduced in many different fields of research. One of its possible applications is seismic activity monitoring, obtained by fixing the mirrors of an interferometer to the ground. In order
BARONE, Fabrizio +3 more
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SPIE Proceedings, 1990
By using a multiphase detection technique, unambiguous shot-noise-limited measurements of unwrapped (i.e. not limited to modulo 21) interferometric phase may be made at data rates in excess of 1 MHz. This technique is ideally suited for use with laser diodes.
Michael Hercher, Geert Wyntjes
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By using a multiphase detection technique, unambiguous shot-noise-limited measurements of unwrapped (i.e. not limited to modulo 21) interferometric phase may be made at data rates in excess of 1 MHz. This technique is ideally suited for use with laser diodes.
Michael Hercher, Geert Wyntjes
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A procedure for noise uncoupling in laser interferometry
Classical and Quantum Gravity, 2002A numerical procedure for noise recognition and uncoupling is described. The procedure is applied to a Michelson interferometer and is effective in seismic and acoustic noise uncoupling from the output signal of the interferometer. Due to the low data flow coming from the instrumentation this uncoupling can be performed in real time and it is useful as
F. Barone +5 more
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Laser Interferometry and Visual Prognosis in Uveitis
Ophthalmology, 1985Forty-six eyes in 26 patients with active, intermediate, and/or posterior uveitis with decreased visual acuity were evaluated with the laser interferometer before treatment with systemic cyclosporine. Pretreatment visual acuity (ETDRS), pretreatment laser interferometric visual acuity, and the best visual acuity obtained while under treatment were ...
A G, Palestine +3 more
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Diode lasers for interferometry
Precision Engineering, 1989Abstract The spectral properties of commercially-available GaAlAs diode lasers have been investigated. The results show that for the use of diode lasers in interferometers some criteria, which are discussed here, must be fulfilled. The emitted frequency of diode lasers is stabilized by holding constant or coupling their parameters, current and ...
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Retina, 1999
To determine the functional predictive value of laser interferometry (LI) in retinal detachment (RD).Laser interferometry with test field diameters of 3 degrees and 8 degrees, both with and without light, was tested preoperatively in 42 eyes with rhegmatogenous RD that were candidates for scleral buckling.
M, Roldán-Pallarés +2 more
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To determine the functional predictive value of laser interferometry (LI) in retinal detachment (RD).Laser interferometry with test field diameters of 3 degrees and 8 degrees, both with and without light, was tested preoperatively in 42 eyes with rhegmatogenous RD that were candidates for scleral buckling.
M, Roldán-Pallarés +2 more
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SPIE Proceedings, 1990
A system has been developed which is capable of interferometrically measuring optical path length changes, with high spatial and temporal resolutions. The capability to freeze fast motion is provided by the pulse length of the laser, the frame rate is determined by the laser and camera, and the spatial resolution is determined by the camera and data
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A system has been developed which is capable of interferometrically measuring optical path length changes, with high spatial and temporal resolutions. The capability to freeze fast motion is provided by the pulse length of the laser, the frame rate is determined by the laser and camera, and the spatial resolution is determined by the camera and data
openaire +1 more source