Articles written in Pramana – Journal of Physics
Volume 69 Issue 4 October 2007 pp 651-659 Research Articles
Density of states in a quantum well has been studied in the presence of an electric ﬁeld applied perpendicular to the growth direction. We have shown that an extra quantization is introduced to the motion of the electron due to the discrete energy levels known as Wannier–Stark ladder states and the nature of density of electronic states changes from quasi two-dimensional to quasi one-dimensional.
Volume 75 Issue 5 November 2010 pp 757-758
Volume 75 Issue 5 November 2010 pp 947-952 Conributed Papers
A time-dependent, two-dimensional (in space) rate equation model of a transversely-pumped pulsed dye laser oscillator, which incorporates transverse pump intensity variation in the presence of intracavity dye laser radiation, is proposed to under-stand and predict its temporal behaviour. The model yields output pulses which agree well with experimental results using rhodamine 6G and kiton red dyes. The shape, amplitude and temporal position of the simulated pulse within the pump pulse vary dramatically across the tuning range of each dye depending on the relative gain and loss values.
Volume 75 Issue 6 December 2010 pp 757-758
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