In-guide measurement of the infra red absorption variation induced in hydrogenated amorphous silicon by visible radiation

Cantore, F.; Corte, Francesco G. Della; Nigro, Maria Arcangela; Summonte, C.

doi:10.1016/j.jnoncrysol.2004.02.079

Cited by 6 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Photoinduced absorption (PA) was characterized by an in guide pump and probe set-up [4,5]. The IR probe system consisted of a distributed feedback (DFB) laser diode source, emitting at 1.55 lm, amplified by an erbium doped fiber amplifier (EDFA).…”

Section: Methodsmentioning

confidence: 99%

“…Recently [4,5], the study of photoinduced IR absorption was carried out by means of properly designed planar waveguides. This technique allows a wide interaction region between the IR excitation (probe) and the orthogonal visible light (pump).…”

Section: Photoinduced Absorptionmentioning

confidence: 99%

“…In particular, a micromodulator based on a-Si:H has been proposed, operating at the two communication wavelengths of 1300 and 1550 nm [4,5]. The device exploits the increase of the absorption in the IR region induced by the illumination with visible (VIS) radiation, a phenomenon commonly observed in amorphous semiconductors with tetrahedral coordination [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Study of in-gap defects in intrinsic and B-doped a-Si1−xCx:H by photo-induced optical absorption and photoluminescence

Corte

Donato

Gagliardi³

et al. 2006

Journal of Non-Crystalline Solids

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Section: Photoinduced Absorptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study of in-gap defects in intrinsic and B-doped a-Si1−xCx:H by photo-induced optical absorption and photoluminescence

Corte

Donato

Gagliardi³

et al. 2006

Journal of Non-Crystalline Solids

View full text Add to dashboard Cite

Er:YAB nanoparticles and vitreous thin films by the polymeric precursor method

et al. 2008

View full text Add to dashboard Cite

In-guide pump and probe characterization of photoinduced absorption in hydrogenated amorphous silicon thin films

Corte

Gagliardi

Nigro

et al. 2006

Journal of Applied Physics

View full text Add to dashboard Cite

The in-guide pump and probe analysis illustrated in this paper is useful for the characterisation of photoinduced phenomena in thin films that are already part of an optoelectronic device. Measurements were carried on a-Si:H∕ZnO waveguiding multilayers designed for the telecommunication wavelength of 1.55μm. Because of the waveguiding geometry, the probe beam propagates along the film under test, a configuration that allows two advantages. First, the underlying layers do not affect the acquisition, and therefore the use of a transparent substrate is not necessary. Second, a longer region is available for the interaction between the pump and probe beams with respect to normal incidence probe beam setups, a characteristic conferring a high sensitivity to the technique. An analysis of the experimental data is proposed to extract information on the material, independent, e.g., of the device geometry. As an example, we illustrate an analysis of the photoinduced absorption by starting from measures directly performed on the a-Si:H core of an operating waveguide.

show abstract

In-guide measurement of the infra red absorption variation induced in hydrogenated amorphous silicon by visible radiation

Cited by 6 publications

References 8 publications

Study of in-gap defects in intrinsic and B-doped a-Si1−xCx:H by photo-induced optical absorption and photoluminescence

Study of in-gap defects in intrinsic and B-doped a-Si1−xCx:H by photo-induced optical absorption and photoluminescence

Er:YAB nanoparticles and vitreous thin films by the polymeric precursor method

In-guide pump and probe characterization of photoinduced absorption in hydrogenated amorphous silicon thin films

Contact Info

Product

Resources

About