System for variable stripe length optical gain measurements in structures containing silicon nanocrystals

2009 ◽  
Author(s):  
D. Koshel ◽  
D. Barba ◽  
F. Martin ◽  
G. G. Ross
Keyword(s):  
Silicon Nanocrystals ◽  
Optical Gain ◽  
Stripe Length

Pump-Probe Measurements Using Silicon Nanocrystal Waveguides

2003 ◽  
Vol 770 ◽  
Author(s):  
Nathanael Smith ◽  
Max J. Lederer ◽  
Marek Samoc ◽  
Barry Luther-Davies ◽  
Robert G. Elliman
Keyword(s):  
Probe Beam ◽  
Time Resolution ◽  
Pump Beam ◽  
Silicon Nanocrystals ◽  
Continuous Wave ◽  
Optical Gain ◽  
Optical Pump ◽  
Time Resolved ◽  
Pump Probe ◽  
Probe Measurements

AbstractOptical pump-probe measurements were performed on planar slab waveguides containing silicon nanocrystals in an attempt to measure optical gain from photo-excited silicon nanocrystals. Two experiments were performed, one with a continuous-wave probe beam and a pulsed pump beam, giving a time resolution of approximately 25 ns, and the other with a pulsed pump and probe beam, giving a time resolution of approximately 10 ps. In both cases the intensity of the probe beam was found to be attenuated by the pump beam, with the attenuation increasing monotonically with increasing pump power. Time-resolved measurements using the first experimental arrangement showed that the probe signal recovered its initial intensity on a time scale of 45-70 μs, a value comparable to the exciton lifetime in Si nanocrystals. These data are shown to be consistent with an induced absorption process such as confined carrier absorption. No evidence for optical gain was observed.

scholarly journals Optical Gain of Lead Halide Perovskites Measured via the Variable Stripe Length Method: What We Can Learn and How to Avoid Pitfalls

2021 ◽  
pp. 2001773
Author(s):  
Ada Lili Alvarado‐Leaños ◽  
Daniele Cortecchia ◽  
Giulia Folpini ◽  
Ajay Ram Srimath Kandada ◽  
Annamaria Petrozza
Keyword(s):  
Optical Gain ◽  
Halide Perovskites ◽  
Lead Halide ◽  
Stripe Length

scholarly journals Achieving Optical Gain of the CsPbBr3 Perovskite Quantum Dots and Influence of the Variable Stripe Length Method

ACS Omega ◽  
2021 ◽  
Author(s):  
Saif M. H. Qaid ◽  
Hamid M. Ghaithan ◽  
Bandar Ali Al-Asbahi ◽  
Abdullah S. Aldwayyan
Keyword(s):  
Quantum Dots ◽  
Optical Gain ◽  
Perovskite Quantum Dots ◽  
Stripe Length

Optical gain in silicon nanocrystals

2001 ◽  
Vol 17 (1-2) ◽  
pp. 41-44 ◽  
Author(s):  
L. Dal Negro ◽  
L. Pavesi ◽  
G. Pucker ◽  
G. Franzò ◽  
F. Priolo
Keyword(s):  
Silicon Nanocrystals ◽  
Optical Gain

Optical gain at the F-band of oxidized silicon nanocrystals

2009 ◽  
Vol 42 (13) ◽  
pp. 135102 ◽  
Author(s):  
K Dohnalová ◽  
K Žídek ◽  
L Ondič ◽  
K Kůsová ◽  
O Cibulka ◽  
...  
Keyword(s):  
Silicon Nanocrystals ◽  
Optical Gain

Time-resolved measurements of optical gain and photoluminescence in silicon nanocrystals

2010 ◽  
Vol T141 ◽  
pp. 014011 ◽  
Author(s):  
K Dohnalová ◽  
K Kůsová ◽  
O Cibulka ◽  
L Ondič ◽  
I Pelant
Keyword(s):  
Silicon Nanocrystals ◽  
Optical Gain ◽  
Time Resolved ◽  
Time Resolved Measurements

Optical Gain and Optical Internal Loss of GaN-Based Laser Diodes Measured by Variable Stripe Length Method with Laser Processing

2001 ◽  
Vol 40 (Part 2, No. 10B) ◽  
pp. L1103-L1106 ◽  
Author(s):  
Yoshinori Kimura ◽  
Atsuya Ito ◽  
Mamoru Miyachi ◽  
Hirokazu Takahashi ◽  
Atsushi Watanabe ◽  
...  
Keyword(s):  
Laser Processing ◽  
Laser Diodes ◽  
Optical Gain ◽  
Internal Loss ◽  
Stripe Length

Determination of the saturation length and study of its effects in optical gain measurements of organic semiconductors using the variable stripe length method

2019 ◽  
Vol 115 (17) ◽  
pp. 173301
Author(s):  
Hans Wilke ◽  
Nicolai M. Hoinka ◽  
Thomas Kusserow ◽  
Thomas Fuhrmann-Lieker ◽  
Hartmut Hillmer
Keyword(s):  
Organic Semiconductors ◽  
Optical Gain ◽  
Stripe Length
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