A novel technique for characterising thin-film second-order nonlinearities with sub-micron resolution for the film depth is proposed. This method is substantially a variation of the classic one-beam Makers Fringe Technique and uses the second harmonic generated by two noncollinear fundamental beams. Compared to the one-beam case this configuration reduces the coherence length of the process, thus increasing the resolution for the nonlinear depth measurements. The technique has been implemented on thermally-poled silica samples, revealing the initial growth of the nonlinear region
Poled glass is an attractive material for nonlinear optics applications. In particular devices such ...
In this presentation second harmonic generation from thermally poled multi-layer doped and un-doped ...
Second-harmonic generation from surfaces and thin films can be described by up to three nonlinear ex...
A new technique to characterize second-order nonlinear films with sub-micron depth resolution is pro...
A simple and nondestructive technique for measuring the thickness of the nonlinear optical layer in ...
During the thermal poling of glass, a the thin depletion region is formed under the anodic interface...
An experimental analysis of the distribution and thickness of the bulk nonlinearity induced in poled...
Maker Fringe measurements are a common method for measuring the second-order non-linear coefficient ...
The determination of the second-order susceptibility (χ(2)) of thin film samples can be a delicate m...
We have used the inherent surface sensitivity of second harmonic generation to develop an instrument...
Polarized second-harmonic generation using two fundamental beams, instead of one, offers significant...
The second-order nonlinearity profile in thermally poled twin-hole fibre was characterized by second...
We measure the susceptibility components of a poled polymer film by second-harmonic generation with ...
The determination of the second-order susceptibility (χ(2)) of thin film samples can be a delicate m...
The topic of this Thesis is related to the determination of second-order nonlinear optical propertie...
Poled glass is an attractive material for nonlinear optics applications. In particular devices such ...
In this presentation second harmonic generation from thermally poled multi-layer doped and un-doped ...
Second-harmonic generation from surfaces and thin films can be described by up to three nonlinear ex...
A new technique to characterize second-order nonlinear films with sub-micron depth resolution is pro...
A simple and nondestructive technique for measuring the thickness of the nonlinear optical layer in ...
During the thermal poling of glass, a the thin depletion region is formed under the anodic interface...
An experimental analysis of the distribution and thickness of the bulk nonlinearity induced in poled...
Maker Fringe measurements are a common method for measuring the second-order non-linear coefficient ...
The determination of the second-order susceptibility (χ(2)) of thin film samples can be a delicate m...
We have used the inherent surface sensitivity of second harmonic generation to develop an instrument...
Polarized second-harmonic generation using two fundamental beams, instead of one, offers significant...
The second-order nonlinearity profile in thermally poled twin-hole fibre was characterized by second...
We measure the susceptibility components of a poled polymer film by second-harmonic generation with ...
The determination of the second-order susceptibility (χ(2)) of thin film samples can be a delicate m...
The topic of this Thesis is related to the determination of second-order nonlinear optical propertie...
Poled glass is an attractive material for nonlinear optics applications. In particular devices such ...
In this presentation second harmonic generation from thermally poled multi-layer doped and un-doped ...
Second-harmonic generation from surfaces and thin films can be described by up to three nonlinear ex...