Non-linear optical properties of chalcogenide glasses in the system As–S–Se

Cardinal, Thierry; Richardson, Kathleen; Shim, Hackjoon; Schulte, Alfons; Beatty, R.W.; Foulgoc, Karine Le; Meneghini, C.; Viens, Jeff; Villeneuve, A.

doi:10.1016/s0022-3093(99)00524-4

Cited by 165 publications

(134 citation statements)

References 27 publications

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“…It is seen that small additions of silver (the thickness of the silver layer used for the process of photodiffusion, as reported elsewhere , was 25 nm) increase 3 times still keeping low values of the two photon absorption. The values of the non-linear refractive index predicted for thin As-S-Se films are commensurable with those measured for bulk samples (Cardinal et al, 1999). The ultrafast response, i.e.…”

supporting

confidence: 77%

Thin Chalcogenide Films for Photonic Applications

Todorov¹,

Tasseva²,

Babeva³

2012

Photonic Crystals - Innovative Systems, Lasers and Waveguides

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supporting

confidence: 77%

Thin Chalcogenide Films for Photonic Applications

Todorov¹,

Tasseva²,

Babeva³

2012

Photonic Crystals - Innovative Systems, Lasers and Waveguides

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“…Due to the sulfur overstoichiometry of Ge25S75 ChG, three bands at 151, 218 and 475 cm -1 are present in measured spectra. These bands can be attributed to the vibrations of S8 rings [39][40][41].…”

Section: Resultsmentioning

confidence: 99%

Structure and properties of spin-coated Ge_25S_75 chalcogenide thin films

Šlang

Janíček

Pálka

2016

Opt. Mater. Express

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Amorphous chalcogenide thin films of Ge25S75 composition have been deposited by spin-coating technique. Optical properties of thin films were investigated by spectroscopic ellipsometry in UV-MIR spectral range. Obtained results prove increase of thin films refractive index in the transparent region and decrease of their thickness with increasing annealing temperature implying densification of the glass structure. Short wavelength absorption edge is shifting to lower energies (red shift) with increasing annealing temperature. Decreasing organic molecules content with increasing temperature of annealing was observed in MIR part of extinction coefficient and verified by Raman spectroscopy and EDS. Raman spectra also gave evidence of thermo-induced structural polymerization and decomposition of organic salts molecules yielding thin films with structure similar to the structure of the source bulk glass.

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“…Chalcogenide glasses were reported to have third nonlinear refractive indexes more than 500 times higher than fused silica with similar response times and good figures of merit [1][2][3]. Furthermore, chalcogenides form glasses over a wide range of compositions, allowing their refractive indexes to be tuned to create almost arbitrarily high index contrast between the core and cladding.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of low loss rib chalcogenide waveguides made by dry etching

Ruan¹,

Li²,

Jarvis³

et al. 2004

Opt. Express

157

103

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Abstract:We report the fabrication and characterization of rib chalcogenide waveguides produced by dry etching with CF 4 and O 2 . The high index contrast waveguides (∆n ∼ 1) show a minimum propagation loss of 0.25 dB/cm. The high refractive nonlinearity of ∼ 100 times silica in As 2 S 3 allowed observation of a π phase shift due to self-phase modulation of an 8 ps duration 1573 nm pulse in a 5 cm long waveguide.

show abstract

Non-linear optical properties of chalcogenide glasses in the system As–S–Se

Cited by 165 publications

References 27 publications

Thin Chalcogenide Films for Photonic Applications

Thin Chalcogenide Films for Photonic Applications

Structure and properties of spin-coated Ge_25S_75 chalcogenide thin films

Fabrication and characterization of low loss rib chalcogenide waveguides made by dry etching

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