Self-developing holographic recording in Li-implanted Te thin films

Abstract

Ablative holographic recording was performed on Li-implanted Te thin films using a Nd:YAG laser. Implantation doses ranging from 2.9×1013 to 2.3×1015 ions/cm2 within the thin films were seen to produce an increase of the writing threshold by 20% and a reduction of the diffraction efficiency of the recorded gratings at the highest doses. For doses as low as 1.2×1014 ions/cm2, a considerable increase in the stability of the recording media has been observed.

Preparation by Hydrothermal Techniques in a Tungstosilicate Acid Solution System and Optical Properties of Tellurium Nanotubes

“…[4] Trigonal tellurium exhibits many useful and interesting properties for example, photoconductivity and catalytic activity toward some reactions, thermoelectricity, high piezoelectricity and nonlinear optical responses. [5] In the past decade, 1D tellurium nanocrystals have been synthesised by different routes such as solvothermal or hydrothermal methods, [6] microwave-assisted methods, [7] chemical (physical) vapour deposition [8] etc. Xia and coworkers first reported that Te nanotubes with blocking seeds (Te atom clusters) within could be obtained by adding orthotelluric acid to pure ethylene glycol heated to reflux at 197°C.…”

Modification et caractérisation des surfaces par bombardement ionique

“…[40]. L'implantation avec le lithium peut avoir un effet salutaire sur la stabilité de tels films enregistreurs dont le comportement a été suivi sur une période de deux ans [41].…”

Structural phase transitions of tellurium nanoplates under pressure

“…As a typical semiconductor, Te-I has a narrow direct band gap (band gap energy 0.35 eV) at ambient conditions. It exhibits many unique properties such as photoconductivity, catalytic activity, piezoelectricity, thermoelectricity, and nonlinear optical responses, [8][9][10][11] which make it a multifunctional material in many electric and optoelectronic devices, such as self-developing holographic recording devices, radiative cooling devices, gas sensors, field-effect devices, and infrared acousto-optic deflectors. [10,12,13] Besides, the controlled growth of multi-morphology Te crystals (such as onedimensional nanorods and nanowires, and two-dimensional hierarchical flowerlike microarchitecture) [11,[14][15][16][17][18][19] has developed maturely, which makes it possible to be used in nanodevices.…”