Electrically pumped photonic-crystal terahertz lasers controlled by boundary conditions

Nature ◽  
2009 ◽  
Vol 457 (7226) ◽  
pp. 174-178 ◽  
Author(s):  
Y. Chassagneux ◽  
R. Colombelli ◽  
W. Maineult ◽  
S. Barbieri ◽  
H. E. Beere ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Boundary Conditions ◽  
Electrically Pumped ◽  
Terahertz Lasers

Terahertz-wave generation using graphene

2012 ◽  
Vol 1437 ◽  
Author(s):  
Taiichi Otsuji ◽  
Stephane Boubanga Tombet ◽  
Akira Satou ◽  
Maxim Ryzhii ◽  
Victor Ryzhii
Keyword(s):  
Terahertz Wave ◽  
Wave Generation ◽  
Nonequilibrium Carrier ◽  
Terahertz Range ◽  
Two Dimensional ◽  
Carrier Relaxation ◽  
Dynamic Conductivity ◽  
Electrically Pumped ◽  
Terahertz Lasers ◽  
Recombination Dynamics

ABSTRACTIn this paper recent advances in terahertz-wave generation in graphene are reviewed. First, fundamental basis of the optoelectronic properties of graphene is introduced. Second, nonequilibrium carrier relaxation and recombination dynamics in optically or electrically pumped graphene is described to introduce a possibility of negative dynamic conductivity in a wide terahertz range. Third, recent theoretical advances toward the creation of current-injection graphene terahertz lasers are described. Fourth, unique terahertz dynamics of the two-dimensional plasmons in graphene are described. Finally, the advantages of graphene materials and devices for terahertz-wave generation are summarized.

Liquid crystal alignment in cylindrical microcapillaries

2012 ◽  
Vol 20 (1) ◽  
Author(s):  
M. Chychłowski ◽  
O. Yaroshchuk ◽  
R. Kravchuk ◽  
T. Woliński
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Photonic Crystal ◽  
Boundary Conditions ◽  
Photonic Crystal Fibers ◽  
Optical Devices ◽  
Liquid Crystal Alignment ◽  
Disclination Line ◽  
Crystal Alignment ◽  
Crystal Fibers

AbstractA variety of alignment configurations of liquid crystals (LCs) inside the glassy cylindrical capillaries is realized by using alignment materials providing different anchoring. The radial configuration with central disclination line is obtained for homeotropic boundary conditions. In turn, the axial, transversal and tilted alignment structures are realized by using materials for planar anchoring. The uniformity and controlling of the latter structures were provided by photoalignment method. This approach can be further used to control LC alignment in the photonic crystal fibers recognized as advanced elements for different optical devices.

scholarly journals Electrically-pumped, broad-area, single-mode photonic crystal lasers

2007 ◽  
Vol 15 (10) ◽  
pp. 5966 ◽  
Author(s):  
Lin Zhu ◽  
Philip Chak ◽  
Joyce K. S. Poon ◽  
Guy A. DeRose ◽  
Amnon Yariv ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Single Mode ◽  
Broad Area ◽  
Electrically Pumped

scholarly journals Electrically pumped all photonic crystal 2nd order DFB lasers arrays emitting at 2.3 μm

APL Photonics ◽  
2017 ◽  
Vol 2 (3) ◽  
pp. 036105 ◽  
Author(s):  
B. Adelin ◽  
O. Gauthier-Lafaye ◽  
P. Dubreuil ◽  
A. Lecestre ◽  
Y. Rouillard ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Electrically Pumped

Electrically Pumped Photonic Crystal Nanolasers

2008 ◽  
Vol 19 (5) ◽  
pp. 40 ◽  
Author(s):  
H.-G. Park ◽  
M.-K. Seo ◽  
S.-H. Kim ◽  
Y.-H. Lee
Keyword(s):  
Photonic Crystal ◽  
Electrically Pumped

From Photonic Crystal to Subwavelength Micropillar Array Terahertz Lasers

2015 ◽  
Vol 21 (6) ◽  
pp. 780-791 ◽  
Author(s):  
Michael Krall ◽  
Martin Brandstetter ◽  
Christoph Deutsch ◽  
Hermann Detz ◽  
Aaron Maxwell Andrews ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Terahertz Lasers ◽  
Micropillar Array

Electrically Pumped Photonic Crystal Nanocavities Using a Laterally Doped p-i-n Junction

2010 ◽  
Author(s):  
Bryan Ellis ◽  
Tomas Sarmiento ◽  
Marie Mayer ◽  
Peter Stone ◽  
Jeff Beeman ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Electrically Pumped
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