scholarly journals Recent Progress in Pulsed Thulium and Holmium Fibre Lasers

2016 ◽  
Author(s):  
Nikita Simakov ◽  
Alexander Hemming ◽  
Keiron Boyd ◽  
Jae M. O. Daniel ◽  
Neil Carmody ◽  
...  
Keyword(s):  
Recent Progress ◽  
Fibre Lasers

Recent progress in resonantly pumped holmium fibre lasers

2014 ◽  
Author(s):  
Alexander Hemming ◽  
Nikita Simakov ◽  
John Haub ◽  
Adrian Carter
Keyword(s):  
Recent Progress ◽  
Fibre Lasers

scholarly journals Carbon nanotubes for ultrafast fibre lasers

Nanophotonics ◽  
2017 ◽  
Vol 6 (1) ◽  
pp. 1-30 ◽  
Author(s):  
Maria Chernysheva ◽  
Aleksey Rozhin ◽  
Yuri Fedotov ◽  
Chengbo Mou ◽  
Raz Arif ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Recent Progress ◽  
State Of The Art ◽  
Photonic Devices ◽  
Fibre Laser ◽  
Fibre Lasers ◽  
Fibre Optics ◽  
Design Concepts ◽  
Saturable Absorbers

AbstractCarbon nanotubes (CNTs) possess both remarkable optical properties and high potential for integration in various photonic devices. We overview, here, recent progress in CNT applications in fibre optics putting particular emphasis on fibre lasers. We discuss fabrication and characterisation of different CNTs, development of CNT-based saturable absorbers (CNT-SA), their integration and operation in fibre laser cavities putting emphasis on state-of-the-art fibre lasers, mode locked using CNT-SA. We discuss new design concepts of high-performance ultrafast operation fibre lasers covering ytterbium (Yb), bismuth (Bi), erbium (Er), thulium (Tm) and holmium (Ho)-doped fibre lasers.

Electron-Mirror Microscopic Aspects of Ferroelectric Domains of BaTiO3 And Ca2Sr (C2H5CO2)6

1970 ◽  
Vol 28 ◽  
pp. 478-479
Author(s):  
Teruo Someya ◽  
Jinzo Kobayashi
Keyword(s):  
Surface Layer ◽  
Electric Fields ◽  
Quantitative Study ◽  
Recent Progress ◽  
Ferroelectric Domain ◽  
Resolving Power ◽  
Surface Pattern ◽  
Crystal Surfaces ◽  
One Dimensional ◽  
Ferroelectric Domains

Recent progress in the electron-mirror microscopy (EMM), e.g., an improvement of its resolving power together with an increase of the magnification makes it useful for investigating the ferroelectric domain physics. English has recently observed the domain texture in the surface layer of BaTiO3. The present authors ) have developed a theory by which one can evaluate small one-dimensional electric fields and/or topographic step heights in the crystal surfaces from their EMM pictures. This theory was applied to a quantitative study of the surface pattern of BaTiO3).

The Nature of Oxide Surfaces: Topographic and Electronic Structure

1993 ◽  
Vol 51 ◽  
pp. 966-967
Author(s):  
Dawn A. Bonnell ◽  
Yong Liang
Keyword(s):  
Transition Metal Oxides ◽  
Electronic Structures ◽  
Recent Progress ◽  
Spatial Localization ◽  
Level Of Detail ◽  
Scanning Tunneling ◽  
Oxide Surfaces ◽  
Tunneling Microscopy ◽  
Considerable Effort ◽  
Complete Understanding

Recent progress in the application of scanning tunneling microscopy (STM) and tunneling spectroscopy (STS) to oxide surfaces has allowed issues of image formation mechanism and spatial resolution limitations to be addressed. As the STM analyses of oxide surfaces continues, it is becoming clear that the geometric and electronic structures of these surfaces are intrinsically complex. Since STM requires conductivity, the oxides in question are transition metal oxides that accommodate aliovalent dopants or nonstoichiometry to produce mobile carriers. To date, considerable effort has been directed toward probing the structures and reactivities of ZnO polar and nonpolar surfaces, TiO2 (110) and (001) surfaces and the SrTiO3 (001) surface, with a view towards integrating these results with the vast amount of previous surface analysis (LEED and photoemission) to build a more complete understanding of these surfaces. However, the spatial localization of the STM/STS provides a level of detail that leads to conclusions somewhat different from those made earlier.

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