Low‐threshold GaAs/AlGaAs graded‐index separate confinement heterostructure lasers grown by molecular beam epitaxy on oxide‐masked Si substrates

1990 ◽  
Vol 56 (25) ◽  
pp. 2499-2501 ◽  
Author(s):  
Geoffrey F. Burns ◽  
Hervé Blanck ◽  
Clifton G. Fonstad
Keyword(s):  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Graded Index ◽  
Si Substrates ◽  
Low Threshold

High‐peak‐power low‐threshold AlGaAs/GaAs stripe laser diodes on Si substrates grown by migration‐enhanced molecular beam epitaxy

1988 ◽  
Vol 53 (14) ◽  
pp. 1248-1250 ◽  
Author(s):  
Jae‐Hoon Kim ◽  
Akbar Nouhi ◽  
Gouri Radhakrishnan ◽  
John K. Liu ◽  
Robert J. Lang ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Peak Power ◽  
Molecular Beam ◽  
Laser Diodes ◽  
High Peak ◽  
High Peak Power ◽  
Si Substrates ◽  
Low Threshold ◽  
Stripe Laser

Comparison of the Optical Properties of Er3+ Doped Gallium Nitride Prepared by Metalorganic Molecular Beam Epitaxy (MOMBE) and Solid Source Molecular Beam Epitaxy (SSMBE)

1999 ◽  
Vol 595 ◽  
Author(s):  
U. Hömmerich ◽  
J. T. Seo ◽  
J. D. MacKenzie ◽  
C. R. Abernathy ◽  
R. Birkhahn ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Excited States ◽  
Room Temperature ◽  
Molecular Beam ◽  
Average Lifetime ◽  
Green Luminescence ◽  
Si Substrates ◽  
Lifetime Analysis ◽  
Metalorganic Molecular Beam Epitaxy ◽  
Er Doped

AbstractWe report on the luminescence properties of Er doped GaN grown prepared by metalorganic molecular beam epitaxy (MOMBE) and solid-source molecular beam epitaxy (SSMBE) on Si substrates. Both types of samples emitted characteristic 1.54 µm PL resulting from the intra-4f Er3+ transition 4I13/2→4I15/2. Under below-gap excitation the samples exhibited very similar 1.54 µm PL intensities. On the contrary, under above-gap excitation GaN: Er (SSMBE) showed ∼80 times more intense 1.54 µm PL than GaN: Er (MOMBE). In addition, GaN: Er (SSMBE) also emitted intense green luminescence at 537 nm and 558 nm, which was not observed from GaN: Er (MOMBE). The average lifetime of the green PL was determined to be 10.8 µs at 15 K and 5.5 µs at room temperature. A preliminary lifetime analysis suggests that the decrease in lifetime is mainly due to the strong thermalization between the 2H11/2 and 4S3/2 excited states. Nonradiative decay processes are expected to only weakly affect the green luminescence.

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