Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Gary C. Bjorklund"'
Autor:
Gary C. Bjorklund, Edward A. Whittaker
Publikováno v:
The journal of physical chemistry. A. 125(39)
Advances in optical spectroscopy rely on improved detection techniques that reduce noise to fundamental detection limits. When properly applied, frequency modulation laser spectroscopy (FM spectroscopy or FMS) approaches the quantum limit for detecti
Publikováno v:
Pure and Applied Chemistry. 67:33-38
A photorefractive system is one which is simultaneously photoconductive and electrooptic. Diffraction gratings or holograms can be produced in a photorefractive material by the photogeneration, drift or diffusion and subsequent trapping of mobile cha
Autor:
Dug Y. Kim, Joseph Zyss, Gary C. Bjorklund, P. Vidakovic, George I. Stegeman, W. Toruellas, Robert J. Twieg, W. E. Moerner
Publikováno v:
Synthetic Metals. 67:303-307
We have shown that very large nonlinear shifts ranging from π/4 to π/2 observed at relatively modest input intensities in single-crystal cored fibers of 4-( N , N -dimethylamino)-3-acetamidonitrobenzene (DAN) have their origin in the cascading of t
Autor:
Gary C. Bjorklund, P. Vidakovic, Jin U. Kang, George I. Stegeman, Joseph Zyss, W. E. Moerner, Dug Y. Kim, William E. Torruellas, Robert J. Twieg, Christian Bosshard
Publikováno v:
Optics letters. 19(12)
We have identified cascading of second-order nonlinear processes as the origin of previously reported, very large nonlinearities measured by self-phase-modulation experiments in organic single-crystal-core fibers of 4-(N, N-dimethylamino)-3-acetamido
Publikováno v:
Optics letters. 8(12)
We have combined frequency-modulation and polarization spectroscopy to detect anisotropic spectral features with high sensitivity. The many line shapes possible with this technique and the potential for laser noise suppression were demonstrated by us
Publikováno v:
Optics letters. 8(5)
A current-tuned GaAlAs-diode laser is utilized both to burn and to detect narrow photochemical holes in the inhomogeneously broadened 833-nm zero-phonon line of the R′ color center in LiF. Applications for reading and writing data into frequency-do
Publikováno v:
Optics letters. 8(3)
We report the first known demonstration of frequency-modulation spectroscopy outside the visible spectral region. Specifically, we report the use of second-harmonic generation on a frequency-modulated visible dye-laser beam to produce a frequency-mod
Publikováno v:
Optics letters. 6(4)
Two-photon holography with continuous-wave laser sources is accomplished by using carbazole dissolved in a polymethyl methacrylate host matrix as a recording medium. Gating of the holographic sensitivity for 4880-A radiation by irradiation with 3336-
Autor:
Gary C. Bjorklund
Publikováno v:
Optics letters. 5(1)
A new type of wavelength-modulation laser spectroscopy is accomplished by utilizing an external phase modulator driven at radio frequencies large compared to the width of the spectral feature of interest. The spectral feature is probed by a single fr
Publikováno v:
Polymers for Advanced Technologies. 1:189-198
Recent advances in poled amorphous polymers for second-order nonlinear optics are discussed with emphasis on stabilizing the frozen-in nonlinearity via chemical crosslinking under electric fields. Specific examples of a linear polymer and a crosslink