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Nonlinear optical absorption of antimony and lead oxyhalide glasses
(2003-12-16)
The optical limiting behavior and nonlinear optical properties of antimony and lead oxyhalide glasses were discussed. The large nonlinear absorption coefficients which range from 11 to 20 cm/GW was determined using standard ...
Giant non-linear absorption in Er3+-doped fluoroindate glass
(1999-06-02)
Non-linear absorption is observed in Er3+-doped fluoroindate glass (in mol% 37InF2:20ZnF2:20SrF2:16BaF2:2GdF2: 2NaF:1GaF3:2ErF3) when the sample is irradiated with a CW laser emitting at 650 nm. An intensity dependence of ...
Relationship between the optical gap and the optical-absorption tail breadth in amorphous GaAs
(American Institute of Physics (AIP), 2004-12-15)
We study the relationship between the optical gap and the optical-absorption tail breadth for the case of amorphous gallium arsenide (a-GaAs). In particular, we analyze the optical-absorption spectra corresponding to some ...
Upconversion of infrared-to-visible light in Pr3+-Yb3+ codoped fluoroindate glass
(1998-08-01)
Bright fluorescence in the visible range has been observed in Pr3+-Yb3+ doped fluoroindate glass under infrared diode laser irradiation. The mechanism which contributes for the upconversion emission is identified and the ...
Excited State Absorption of Doped and Undoped Polyanyline
(TAYLOR & FRANCIS LTD, 2010)
Polyaniline is a conducting polymer with appealing electrical and optical properties, arising from the -conjugation along the polymer backbone. The understanding of its excited state absorption is of prime importance for ...
Light absorption budget in a reservoir cascade system withwidely differing optical properties
(2019-01-29)
Aquatic systems are complex systems due to the environmental pressures that lead to water quality parameter changes, and consequently, variations in optically active compounds (OAC). In cascading reservoir systems, such ...
Thermoluminescence and optical absorption studies of natural grossular minerals
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
The optical absorption spectra of two samples of grossular have been measured at room temperature. An intense charge transfer band (UVCT) of iron extends to the visible and near infrared region. Some peaks associated to ...
Flow cell within an LED: a proposal for an optical absorption detector
(Springer, 2007-11-01)
Droplets formed at the tip of a tube under the same conditions possess extreme uniformity of form, volume and weight. These properties of liquid drop formation have been known for a long time and consequently many applications ...
Excited-state absorption spectroscopy in oxidized Cytochrome c
(ELSEVIER SCIENCE BV, 2010)
This work reports on the excited-state absorption spectrum of oxidized Cytochrome c (Fe(3+)) dissolved in water, measured with the Z-scan technique with femtosecond laser pulses. The excited-state absorption cross-sections ...
Thermoluminescence, electron paramagnetic resonance and optical absorption in natural and synthetic rhodonite crystals
(SPRINGER, 2008)
Thermoluminescence, electron paramagnetic resonance and optical absorption properties of rhodonite, a natural silicate mineral, have been investigated and compared to those of synthetic crystal, pure and doped. The TL peaks ...