Long wavelength VCSELs made by wafer fusion

2016 ◽  
Author(s):  
A. Mereuta ◽  
A. Caliman ◽  
P. Wolf ◽  
A. Sirbu ◽  
V. Iakovlev ◽  
...  
Keyword(s):  
Long Wavelength ◽  
Wafer Fusion

The Effect of a Saturable Absorber in Long-Wavelength Vertical-Cavity Surface-Emitting Lasers Fabricated by Wafer Fusion Technology

2020 ◽  
Vol 46 (12) ◽  
pp. 1257-1262
Author(s):  
S. A. Blokhin ◽  
M. A. Bobrov ◽  
A. A. Blokhin ◽  
A. P. Vasil’ev ◽  
A. G. Kuz’menkov ◽  
...  
Keyword(s):  
Saturable Absorber ◽  
Cavity Surface ◽  
Fusion Technology ◽  
Long Wavelength ◽  
Wafer Fusion ◽  
Surface Emitting Lasers ◽  
Vertical Cavity Surface ◽  
Emitting Lasers ◽  
Vertical Cavity

Long-wavelength (1.55-μm) vertical-cavity lasers with InGaAsP/InP-GaAs/AlAs DBR's by wafer fusion

1998 ◽  
Vol 34 (10) ◽  
pp. 1904-1913 ◽  
Author(s):  
Y. Ohiso ◽  
C. Amano ◽  
Y. Itoh ◽  
H. Takenouchi ◽  
T. Kurokawa
Keyword(s):  
Long Wavelength ◽  
Wafer Fusion ◽  
Vertical Cavity Lasers ◽  
Vertical Cavity ◽  
Cavity Lasers

Wafer Fusion for Surface-Normal Optoelectronic Device Applications

1997 ◽  
Vol 08 (02) ◽  
pp. 357-376 ◽  
Author(s):  
Dubravko I. Babić ◽  
John. E. Bowers ◽  
Evelyn L. Hu ◽  
Long Yang ◽  
Kent Carey
Keyword(s):  
Optoelectronic Device ◽  
Long Wavelength ◽  
Wafer Fusion ◽  
Fusion Bonding ◽  
Surface Normal ◽  
Vertical Cavity Lasers ◽  
Device Applications ◽  
Bonding Technology ◽  
Vertical Cavity ◽  
Cavity Lasers

This paper discusses the issues connected with the application of fusion bonding technology for surface-normal optoelectronic devices (III-V semiconductors). The InP/GaAs fusion bonding technology employed in the development of long-wavelength vertical-cavity lasers is described.

Activated Prominences; Mechanisms for Activation and Eruption

1979 ◽  
Vol 44 ◽  
pp. 307-313
Author(s):  
D.S. Spicer
Keyword(s):  
Pressure Gradient ◽  
Density Gradient ◽  
Current Density ◽  
Convective Instability ◽  
Tearing Mode ◽  
Magnetic Shear ◽  
Long Wavelength ◽  
Ideal Mhd ◽  
Gradient Change ◽  
Accelerated Particles

A possible relationship between the hot prominence transition sheath, increased internal turbulent and/or helical motion prior to prominence eruption and the prominence eruption (“disparition brusque”) is discussed. The associated darkening of the filament or brightening of the prominence is interpreted as a change in the prominence’s internal pressure gradient which, if of the correct sign, can lead to short wavelength turbulent convection within the prominence. Associated with such a pressure gradient change may be the alteration of the current density gradient within the prominence. Such a change in the current density gradient may also be due to the relative motion of the neighbouring plages thereby increasing the magnetic shear within the prominence, i.e., steepening the current density gradient. Depending on the magnitude of the current density gradient, i.e., magnetic shear, disruption of the prominence can occur by either a long wavelength ideal MHD helical (“kink”) convective instability and/or a long wavelength resistive helical (“kink”) convective instability (tearing mode). The long wavelength ideal MHD helical instability will lead to helical rotation and thus unwinding due to diamagnetic effects and plasma ejections due to convection. The long wavelength resistive helical instability will lead to both unwinding and plasma ejections, but also to accelerated plasma flow, long wavelength magnetic field filamentation, accelerated particles and long wavelength heating internal to the prominence.

Modern optics of long-wavelength neutrons

1991 ◽  
Vol 161 (11) ◽  
pp. 95 ◽  
Author(s):  
A.I. Frank
Keyword(s):  
Long Wavelength

Slip And Hall Effects On The Flow Of A Hyperbolic Tangent Fluid Through Porous Medium In A Planar Channel With Peristalsis

GIS Business ◽  
2020 ◽  
Vol 15 (1) ◽  
pp. 383-394
Author(s):  
K. Shalini ◽  
K.Rajasekhar
Keyword(s):  
Porous Medium ◽  
Pressure Gradient ◽  
Volume Flow Rate ◽  
Perturbation Technique ◽  
Volume Flow ◽  
Planar Channel ◽  
Hyperbolic Tangent ◽  
Closed Form Solutions ◽  
Long Wavelength ◽  
Hall Effects

In this paper, the effect of Slip and Hall effects on the flow of Hyperbolic tangent fluid through a porous medium in a planar channel with peristalsis under the assumption of long wavelength is investigated. A Closed form solutions are obtained for axial velocity and pressure gradient by employing perturbation technique. The effects of various emerging parameters on the pressure gradient, time averaged volume flow rate and frictional force are discussed with the aid of graphs.

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