The promise of chalcogenides

Anscombe, Nadya

doi:10.1038/nphoton.2011.155

Cited by 34 publications

(12 citation statements)

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“…However, the very fact that there already exist well-matured fabrication technologies [11,12,24] for chalcogenide MOF means it should be of interest to invest efforts and money in the fabrication of the proposed fiber design in view of its potential use in the civil as well as defense sectors. Perhaps CVD, MCVD [5], molding processes [25] or casting techniques [26] will be good options for the fabrication of these specialty fibers and our methodology should serve as the initial design for the experimental realization of such a mid-IR fiber light source.…”

Section: Discussionmentioning

confidence: 99%

“…In recent years a strong interest has emerged in developing devices capable of operating at wavelengths in the mid-IR range (2-25 µm) in view of their potential applications in areas as wide as astronomy, climatology, civil, medical surgery, military, biological spectroscopy, optical frequency metrology, optical tomography and sensing [1][2][3][4][5]. To design fiber-based devices for these mid-IR applications, chalcogenide glasses (S-Se-Te-based glass compositions) are promising candidates because of their extraordinary linear and nonlinear intrinsic properties [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, their chemical durability, glass transition temperature, strength, stability etc can be improved by doping with As, Ge, Sb or Ga for drawing an optical fiber. At present their fabrication technology is well matured though expensive [5,9,11,12].…”

Section: Introductionmentioning

confidence: 99%

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Design of an efficient mid-IR light source using chalcogenide holey fibers: a numerical study

Barh¹,

Ghosh²,

Agrawal³

et al. 2013

J. Opt.

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We report the design of a highly nonlinear holey fiber for making a mid-infrared light source at 4.36 µm. A solid-core chalcogenide-based index-guided holey microstructured optical fiber with circular air holes has been exploited to numerically demonstrate wavelength translation via four-wave mixing. We employ a thulium-doped fiber laser as the pump with a power of 5 W. Our simulations indicate that a maximum parametric gain of 20.5 dB with a bandwidth of 16 nm is achievable in this designed fiber, resulting in a power conversion efficiency of more than 17.6%.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design of an efficient mid-IR light source using chalcogenide holey fibers: a numerical study

Barh¹,

Ghosh²,

Agrawal³

et al. 2013

J. Opt.

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“…Various fabrication methods have been utilised to prepare rare earth ions doped/or undoped chalcogenide thin film, including chemical vapour deposition (CVD) [16,17], spin coating [18][19][20], magnetron sputtering [15,21,22] and pulsed laser deposition (PLD) [23][24][25][26]. For example, sputtering produces films with an acceptable stoichiometric composition identical to the target material.…”

Section: Introductionmentioning

confidence: 99%

Erbium-doped chalcogenide glass thin film on silicon using femtosecond pulsed laser with different deposition temperatures

et al. 2018

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The properties of Er 3+-doped gallium lanthanum sulphide thin films prepared on a silicon substrate by femtosecond pulsed laser deposition were studied as a function of process temperature. The films were characterised using transition electron microscopy imaging, X-ray diffractometry, Raman spectroscopy, fluorescence spectroscopy, and UV-Vis-NIR spectroscopy. The results show that by increasing the substrate temperature, the deposited layer thickness increases and the crystallinity of the films changes. The room temperature photoluminescence and lifetimes of the 4 I 13/2 → 4 I 15/2 transition of Er 3+ are reported in the paper.

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“…Chalcogenide materials with a moderate refractive index are fascinating due to their unique features of both broad infrared transparency and highly nonlinear properties [1][2][3][4][5]. Making use of the photonic band gap (PBG) property of chalcogenide photonic crystals (PCs), various powerful functional optical devices have been designed or fabricated [2,3,[6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Enhanced complete photonic bandgap in a moderate refractive index contrast chalcogenide-air system with connected-annular-rods photonic crystals

Hou

Yang

et al. 2018

Photon. Res.

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Connected-annular-rods photonic crystals (CARPCs) in both triangular and square lattices are proposed to enhance the two-dimensional complete photonic bandgap (CPBG) for chalcogenide material systems with moderate refractive index contrast. For the typical chalcogenide-glass-air system with an index contrast of 2.8:1, the optimized square lattice CARPC exhibits a significantly larger normalized CPBG of about 13.50%, though the use of triangular lattice CARPC is unable to enhance the CPBG. It is almost twice as large as our previously reported result [IEEE J. Sel. Top. Quantum Electron. 22, 4900108 (2016)]. Moreover, the CPBG of the square-lattice CARPC could remain until an index contrast as low as 2.24:1. The result not only favors wideband CPBG applications for index contrast systems near 2.8:1, but also makes various optical applications that are dependent on CPBG possible for more widely refractive index contrast systems.

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The promise of chalcogenides

Cited by 34 publications

References 0 publications

Design of an efficient mid-IR light source using chalcogenide holey fibers: a numerical study

Design of an efficient mid-IR light source using chalcogenide holey fibers: a numerical study

Erbium-doped chalcogenide glass thin film on silicon using femtosecond pulsed laser with different deposition temperatures

Enhanced complete photonic bandgap in a moderate refractive index contrast chalcogenide-air system with connected-annular-rods photonic crystals

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