Understanding aging in chalcogenide glass thin films using precision resonant cavity refractometry

Resonant cavity-enhanced photosensitivity in As2S3 chalcogenide glass at 1550 nm telecommunication wavelength.

We report the first (to our knowledge) experimental observation of resonant cavity-enhanced photosensitivity in As(2)S(3) chalcogenide glass film at 1550 nm telecommunication wavelength. The measured photosensitivity threshold is <0.1 GW/cm(2), and a photoinduced refractive index increase as large as 0.016 is observed. The photosensitive process is athermal; further, we confirm the absence of t...

9 Thin Chalcogenide Films for Photonic Applications

Superconducting properties of iron chalcogenide thin films.

Iron chalcogenides, binary FeSe, FeTe and ternary FeTe x Se1-x , FeTe x S1-x and FeTe:O x , are the simplest compounds amongst the recently discovered iron-based superconductors. Thin films of iron chalcogenides present many attractive features that are covered in this review, such as: (i) easy fabrication and epitaxial growth on common single-crystal substrates; (ii) strong enhancement of supe...

Chalcogenide glass thin films through inverted deposition and high velocity spinning - Electronics Letters

Introduction: The increasing sophistication of the industries requiring optical thin films from unconventional materials calls for alternative fabrication methods. Thin film for use in broadband and narrowband filtering applications, including dense wavelength division multiplexing (DWDM), optical amplification, switching, modulation of light signals, grating based devices, infrared light trans...

Evolution of chemical structure during silver photodiffusion into chalcogenide glass thin films

The change of chemical structure resulting after X-ray and photo-induced silver diffusion into chalcogenide glass (ChG) thin films is monitored by high resolution X-ray photoelectron spectroscopy (XPS). As40S60 and Ge30Se70 thin films, which are based on pyramids and tetrahedral structural units, are investigated as model materials. Survey, core level (As 3d, S 2p, Ge 3d, Ge 2p, Se 3d, Ag 3d5/2...