Journal ArticleDOI
Relaxation Oscillations in Anti-Reflection Coated Low Reflectivity Laser Diode
Kenneth K. Li,Kit Lai Yu +1 more
TLDR
In this article, a relaxation resonance peak in the frequency spectrum of an anti-reflection coated low reflectivity laser diode was found at >20 GHz, which has not been reported previously.Abstract:
Solving the rate equations without spatial averaging reveals the existence of a relaxation resonance peak in the frequency spectrum of an anti-reflection coated low reflectivity laser diode. This peak occurs at >20 GHz which has not been reported previously. Such a diode may have potential applications in high frequency microwave transmission.read more
Citations
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Journal ArticleDOI
Anomalous dependences of luminescence of poly(3-alkylthiophene) on temperature and alkyl chain length
TL;DR: In this paper, photo-luminescence of poly(3-alkylthiophene) film is found to increase with increasing temperature and after indicating maximum at a melting point it again decreases in the liquid phase.
Journal ArticleDOI
Instability of conducting polymer, poly(3-alkylthiophene) gel with solvent, temperature and doping and effect of alkyl chain length
TL;DR: In this article, the authors observed that the volume shrinkage ratio of poly(3-alkylthiophene) is larger in a chemically prepared sample than in an electrochemically prepared sample and also depends on alkyl chain length.
Journal ArticleDOI
Characterization of InP to GaInAs and GaInAs to InP interfaces using tilted cleaved corner TEM
TL;DR: In this paper, the processes occurring during continuous and purged MOVPE growth of InP to GaInAs and GaINAs to InP interfaces have been investigated, using tilted interface fringes observed in 202-type images which give information on the sign and magnitude of the mismatch.
Journal ArticleDOI
Photoluminescence of poly(3-alkylthiophene) gel at volume instability
TL;DR: In this article, the photoluminescence intensity of poly(3-alkylthiophene) gel is explained in terms of the changes of effective conjugation length of polymer main chains and the inter-chain distance.
Journal ArticleDOI
Drastic changes of photoluminescence and X-ray diffraction associating with volume instability of poly(3-alkylthiophene) gel
TL;DR: In this paper, the inter-chain distance of poly(3-alkylthiophene) gel and its luminescence change associated with the volume instability were investigated and it was shown that the photoluminescence changes associated with volume instability are caused by the changes of interchain interaction and the probability of the radiative recombination of photo-excited species depending on the interchain distance.
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