Zobrazeno 1 - 10
of 40
pro vyhledávání: '"F. C. Jahoda"'
Publikováno v:
Applied optics. 30(13)
It is generally assumed that fiber interferometers must be constructed from single-mode fibers. An alternative is to employ phase conjugation mirrors on the arms of a multimode fiber interferometer so that the spatial scrambling of modes is reversed,
Publikováno v:
Applied optics. 25(11)
By combining twisted optical sensing fiber and heterodyne phase detection of circular birefringence we have (a) overcome the distortion problem caused by residual linear birefringence in the Faraday rotation method of measuring enclosed current and (
Publikováno v:
Applied optics. 6(8)
Holographic interferometry can be applied to plasmas whose density results in shifts of less than one fringe by superposing the small shifts on an arbitrarily shaped and positioned background fringe pattern. The sensitivity of holographic interferome
Publikováno v:
Optics letters. 16(19)
A Michelson interferometer whose signal arm is terminated by a self-pumped BaTiO(3) phase conjugator records phase-change distributions in times short compared with the conjugator rewrite time that correspond quantitatively to a single (not a double)
Publikováno v:
Optics letters. 9(8)
It is shown that even slight optical feedback of a self-pumped phase-conjugate signal into dye or argon-ion lasers causes laser wavelength and conjugator reflectivity changes. The wavelength dependence of the self-pumped phase-conjugate reflectivity
Publikováno v:
Review of Scientific Instruments. 61:2970-2972
A new technology is emerging for making multiple temperature measurements with good spatial resolution on a single optical fiber. The germanium‐doped fused silica fiber core is prepared by exposing short sections (4–6 mm) to interfering coherent
Publikováno v:
Digest on Nonlinear Optics: Materials, Phenomena and Devices.
Publikováno v:
IEEE Transactions on Plasma Science. 12:275-280
The rotation of the plane of polarization of radiation propagating through a magnetized plasma (Faraday effect) yields the line integral of the electron density times the longitudinal magnetic field component. A commonly used technique for this measu
Publikováno v:
Review of Scientific Instruments. 56:953-957
Several possibilities for plasma diagnostics provided by optical phase conjugation and, in particular, self‐pumped phase conjugation in barium titanate (BaTiO3) are discussed. These include placing a plasma within a dye laser cavity equipped with a
Publikováno v:
Physical Review. 119:843-856
The identification of a sharp low-wavelength cutoff in the spectrum of x rays emitted from deuterium discharges in Scylla has resulted in the assignment of an electron temperature of 240\ifmmode\pm\else\textpm\fi{}40 ev at the time of peak magnetic f