Optical properties of free arsenic and broadband infrared chalcogenide glass

Rozé, Mathieu; Calvez, Laurent; Rollin, Joël; Gallais, Patrick; Lonnoy, J.; Ollivier, Sébastien; Guilloux‐Viry, M.; Zhang, Xianghua

doi:10.1007/s00339-009-5435-4

Cited by 16 publications

(4 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Optical band‐gap, transmission window, refractive index, etc could be scaled down or up by halogen/metal halide doping. ChH glasses have been studied in past several decades for its potential applications in the infrared, such as multispectral imaging from visible to long‐wave infrared, or large‐capacity of rare‐earth doping for fiber laser and amplifier . One of such ChH glasses is GeSe 2 ‐Ga 2 Se 3 ‐CsI, which has good thermal stability and excellent transparency from visible up to 14 μm atmospheric window.…”

Section: Introductionmentioning

confidence: 99%

A novel chalcohalide fiber with high nonlinearity and low material zero‐dispersion via extrusion

et al. 2019

View full text Add to dashboard Cite

High nonlinear fibers with low zero‐dispersion wavelength (ZDW), high laser power tolerance and large band‐gap are urgent for all‐optical‐band supercontinuum (SC) generations. Widely used chalcogenide fibers usually have a large ZDW and low laser power tolerance, and thus are not ideal for such purpose. Here, an ultra‐low material ZDW chalcohalide (ChH) glass fiber with high nonlinearity as well as high laser power tolerance has been fabricated successfully via a novel peeling‐off‐extrusion method. The step‐index fiber has double‐cladding structure, the inner cladding is GeGaSe‐CsI glass and the outer one is GeSbS jacket. The core glass has an ultra‐low material ZDW of 3.5 μm and large absorption edge of 2.0 eV. The nonlinear refractive index is 6.67 × 10−18 m2/W @1.55 μm. Broadband SC generation covering 1.05‐13.0 μm is demonstrated in this novel ChH fiber. Such glass fiber with high nonlinearity, wide transparent range, low ZDW and high laser damage threshold is promising for the applications in the mid‐infrared.

show abstract

Section: Introductionmentioning

confidence: 99%

A novel chalcohalide fiber with high nonlinearity and low material zero‐dispersion via extrusion

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Commercially, there are nominally ten ChG compositions available in bulk form for optical imaging applications. Most compositions are either along the As‐Se binary or within the Ge‐As‐Se ternary, with others containing Te, Sb, or S . Only a fraction of commercially available glasses have a well‐defined refractive index as a function of wavelength and/or temperature.…”

Section: Introductionmentioning

confidence: 99%

Refractive Index and Thermo‐Optic Coefficients of Ge‐As‐Se Chalcogenide Glasses

Gleason

Richardson

Sisken

et al. 2016

Int J of Appl Glass Sci

View full text Add to dashboard Cite

Seventeen glasses in the Ge-As-Se ternary glass-forming region have been fabricated and analyzed to provide input for optical design data and to establish composition-and structure-based relationships to aide development of novel chalcogenide glasses with tailored optical functionality. While known that Ge addition to binary As-Se glasses enhances the mean coordination number (MCN) of the network and results in increased T g and decreased CTE, this work highlights the impact on optical properties, specifically mid-wave (k = 4.515 lm) index and thermo-optic coefficient (dn/dT). Trends in property changes were correlated with an excess or deficiency of chalcogen content in the glassy network as compared to stoichiometric compositions. Transitions in key optical properties were observed with the disappearance of Se-Se homopolar bonds and creation of As-As homopolar bonds which are associated with the Se-rich and Se-deficient regions near the stoichiometry, respectively. A second transition was observed with the creation of GeSe ethane-like structures, which are only present in strongly Se-deficient networks. Fitting dn/dT values with a simplified version of the thermal Lorentz-Lorenz formulation yielded a linear relation between the quantity (n À3 •dn/dT) and the CTE, which can be used to predict compositions with the near-zero dn/dT required for athermal optical systems.

show abstract

“…Several compositions have shown the ability to generate reproducible glass–ceramics and an increase of mechanical properties such as toughness compared with the base‐glass 13,14 . Even if the introduction of alkali‐halide leads to a larger transparency window and larger vitreous domain, it also lowers the chemical durability due to the hygroscopicity of halide salts 15 . This paper presents the possibility of molding and generating controlled‐size crystals with a new chalcogenide glass ceramics without alkali‐halide.…”

Section: Introductionmentioning

confidence: 99%

“…13,14 Even if the introduction of alkali-halide leads to a larger transparency window and larger vitreous domain, it also lowers the chemical durability due to the hygroscopicity of halide salts. 15 This paper presents the possibility of molding and generating controlled-size crystals with a new chalcogenide glass ceramics without alkali-halide. This paper also deals with the mechanical, structural, and optical properties of the as-prepared glass ceramics.…”

Section: Introductionmentioning

confidence: 99%

Molded Glass–Ceramics for Infrared Applications

Rozé

Calvez

Hubert

et al. 2011

Int J of Appl Glass Sci

Self Cite

View full text Add to dashboard Cite

International audienceIn this paper, the feasibility to make molded glass-ceramics transparent in the second and third atmospheric window has been investigated. The thermodynamical and viscosity properties of the base glass have been measured confirming the possibility of generating crystals during molding at different temperatures. 71Ga nuclear magnetic resonance confirms that gallium plays the role of nucleating agent of gallium in this glass. Examination of X-rays diffraction patterns and optical properties indicates that the generation of nanocrystals of GeGa4Se8 allows the glass-ceramics to keep a wide transparency in the infrared range from 2 to 15 μm. The crystallization of large GeSe2 crystals of at higher temperature induces scattering and a reduced transparency window. The mechanical and structural properties of the as-prepared glass ceramics show an increase of toughness from 0.188 to 0.387 MPa m1/2 and elastic modulus from 22.7 to 26.55 GPa while the number and size of crystals increase. As a result, the preparation of molded IR glass-ceramics with high resistance to thermal and mechanical shocks has been clearly demonstrated

show abstract

Optical properties of free arsenic and broadband infrared chalcogenide glass

Cited by 16 publications

References 20 publications

A novel chalcohalide fiber with high nonlinearity and low material zero‐dispersion via extrusion

A novel chalcohalide fiber with high nonlinearity and low material zero‐dispersion via extrusion

Refractive Index and Thermo‐Optic Coefficients of Ge‐As‐Se Chalcogenide Glasses

Molded Glass–Ceramics for Infrared Applications

Contact Info

Product

Resources

About