Mode-locked far-infrared p-Ge laser using and offset rf electric field for gain modulation

1998 ◽  
Author(s):  
A. V. Muravjov ◽  
R. C. Strijbos ◽  
C. J. Fredricksen ◽  
H. Weidner ◽  
W. Trimble ◽  
...  
Keyword(s):  
Electric Field ◽  
Far Infrared ◽  
Gain Modulation

Ultrabroadband coherent electric field from far infrared to 200 THz using air plasma induced by 10 fs pulses

2012 ◽  
Vol 101 (1) ◽  
pp. 011105 ◽  
Author(s):  
Eiichi Matsubara ◽  
Masaya Nagai ◽  
Masaaki Ashida
Keyword(s):  
Electric Field ◽  
Far Infrared ◽  
Air Plasma

Investigation of New Geometries for High Duty Cycle Far-Infrared p-Type Germanium Lasers

1999 ◽  
Vol 607 ◽  
Author(s):  
Danielle R. Chamberlin ◽  
Erik Bruendermannw ◽  
Eugene E. Haller
Keyword(s):  
Electric Field ◽  
Duty Cycle ◽  
Pulse Length ◽  
Far Infrared ◽  
Contact Geometry ◽  
Input Power ◽  
High Resistivity ◽  
Field Uniformity ◽  
P Type ◽  
Planar Contact

AbstractWe report on increasing the pulse length and repetition rate of p-type germanium lasers through miniaturization, increased electric field uniformity, and improved cooling. We have recently demonstrated that it is possible to improve the electric field uniformity necessary for an efficient laser and at the same time decrease the electrical input power by using a geometry with d/L>>1, where d is the distance between electrical contacts and L is the length in the direction of the Hall field. In order to achieve good heat sinking along with a large d/L ratio, we have developed a new, planar contact geometry. Attaching an undoped, high-resistivity, single-crystal Si heat sink to the base of the Ge planar contact laser increases the duty cycle by a factor of 5.5. In order to further decrease the input power by decreasing the volume of laser crystals in the planar contact geometry, we show as a proof-of-concept the use of polished strontium titanate single crystals as electrically insulating far-infrared mirrors based on restrahl band reflection. The physical phenomena underlying these improvements in this novel geometry will be discussed.

Far-infrared laser on quantum dots created by electric-field focusing

2003 ◽  
Vol 69 (2-4) ◽  
pp. 213-215 ◽  
Author(s):  
Lucjan Jacak ◽  
Jurij Krasnyj ◽  
Dorota Jacak ◽  
Liliana Bujkiewicz
Keyword(s):  
Quantum Dots ◽  
Electric Field ◽  
Far Infrared ◽  
Infrared Laser ◽  
Far Infrared Laser

Generation and Complete Electric-Field Characterization of Intense Ultrashort Tunable Far-Infrared Laser Pulses

1999 ◽  
Vol 83 (8) ◽  
pp. 1578-1581 ◽  
Author(s):  
G. M. H. Knippels ◽  
X. Yan ◽  
A. M. MacLeod ◽  
W. A. Gillespie ◽  
M. Yasumoto ◽  
...  
Keyword(s):  
Electric Field ◽  
Far Infrared ◽  
Laser Pulses ◽  
Infrared Laser ◽  
Far Infrared Laser

Helmholtz resonator for electric field enhancement from visible to far-infrared

2015 ◽  
Author(s):  
Paul Chevalier ◽  
Patrick Bouchon ◽  
Jean-Jacques Greffet ◽  
Jean-Luc Pelouard ◽  
Riad Haidar ◽  
...  
Keyword(s):  
Electric Field ◽  
Field Enhancement ◽  
Helmholtz Resonator ◽  
Far Infrared ◽  
Electric Field Enhancement

Calculations of the electric field dependent far‐infrared absorption spectra in InAs/AlGaSb quantum wells

1989 ◽  
Vol 55 (9) ◽  
pp. 888-890 ◽  
Author(s):  
S. Hong ◽  
J. P. Loehr ◽  
J. E. Oh ◽  
P. K. Bhattacharya ◽  
J. Singh
Keyword(s):  
Electric Field ◽  
Quantum Wells ◽  
Absorption Spectra ◽  
Infrared Absorption ◽  
Far Infrared ◽  
Field Dependent ◽  
Infrared Absorption Spectra
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