Zobrazeno 1 - 10
of 44
pro vyhledávání: '"K. Puech"'
Autor:
K. Puech, Werner J. Blau
Publikováno v:
Journal of Nanoparticle Research. 3:13-21
Measurements of the resonantly enhanced, third-order nonlinear optical properties of gold nanostructures exhibiting reduced charge-carrier mobility in three dimensions were performed with a number of ultrafast nonlinear optical techniques. The size o
Publikováno v:
Talanta. 50:445-456
Emulsion or suspension destabilisation often results from coalescence or particle aggregation (flocculation) leading to particle migration (creaming or sedimentation). Creaming and sedimentation are often considered as reversible, while coalescence a
Autor:
Pete Smith, Graeme W. Ross, Dieter H. Jundt, D.C. Hanna, L. Lefort, S.D. Butterworth, K. Puech
Publikováno v:
Optics Communications. 152:55-58
Using periodically-poled lithium niobate (PPLN), synchronously pumped by a Nd:YLF laser at 1047 nm, optical parametric oscillation is achieved with a mean threshold power as low as 7.5 mW, nearly an order of magnitude lower than previously reported.
Publikováno v:
Chemical Physics Letters. 247:13-17
Measurement of the phase relaxation time and nonlinear susceptibility of gold nanoparticles is demonstrated, using incoherent light. The diameters of the gold particles ranged from 50 to 400 A. Experiments were performed in the vicinity of the surfac
Publikováno v:
Europhysics Letters (EPL). 32:119-124
Intensity-dependent absorption measurements for determining the non-linear optical susceptibility of aqueous colloidal solutions of gold nanoparticles are presented. The diameters of the gold particles ranged from 50 to 400 A. Measurements were perfo
Publikováno v:
Optics letters. 20(15)
Time-resolved degenerate four-wave mixing experiments on a colloidal solution of 50-nm gold particles in acetone, using a high-repetition-rate laser source, are presented. The signal is found to depend strongly on the repetition rate of the incident
Publikováno v:
Applied Physics Letters. 73:1610-1612
The very high gains, achieved when using mode-locked pulses to synchronously pump an optical parametric oscillator based on periodically poled lithium niobate, permit oscillation even with strong idler absorption. Oscillation has been achieved at idl
Publikováno v:
Applied Physics Letters. 69:3375-3377
We present detailed measurements of carrier lifetimes in CuInSe2 thin films. Time‐resolved photoluminescence measurements are performed on polycrystalline samples grown with a lateral gradient in the Cu/In ratio, thus enabling continuous evaluation
Publikováno v:
Springer Proceedings in Physics ISBN: 9783642639937
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81321c109ad72d1691b785f10b20cd25
https://doi.org/10.1007/978-3-642-59484-7_298
https://doi.org/10.1007/978-3-642-59484-7_298
Publikováno v:
Technical Digest. Summaries of Papers Presented at the Conference on Lasers and Electro-Optics. Conference Edition. 1998 Technical Digest Series, Vol.6 (IEEE Cat. No.98CH36178).
Efficient sources of tunable coherent radiation in the near- and mid-IR, in the femtosecond time domain, are necessary for many applications including spectroscopy and communications. We report on the generation of tunable 200-fs pulses obtained from