Showing papers by "Jianying Zhou published in 2008"
TL;DR: A one-step introduction of functional defects into a photonic crystal is demonstrated and intrinsic defect introduction into a 3-dimensional photonicCrystal is proposed, giving rise to a substantial reduction of the fabrication complexity and a significant improvement on the accuracy of the functional defects in photonic crystals.
Abstract: A one-step introduction of functional defects into a photonic crystal is demonstrated. By using a multi-beam phase-controlled holographic lithography, line-defects in a Bragg structure and embedded waveguides in a two-dimensional photonic crystal are fabricated. Intrinsic defect introduction into a 3-dimensional photonic crystal is also proposed. This technique gives rise to a substantial reduction of the fabrication complexity and a significant improvement on the accuracy of the functional defects in photonic crystals.
59 citations
TL;DR: In this article, a review of the latest research progress in storage, release and energy conversion for ultrashort laser pulses in periodical arrays of absorbing medium is presented, and techniques to fabricate such devices are also presented.
Abstract: The effective photonic control is one of the key issues in photo-physics. Significant advancement in photonic crystals, quantum optics, ultrafast optics as well as micro-nano-optics gives rise to new opportunities to manipulate the emission and propagation in optical fields, leading to a number of new and interesting discoveries, e.g., ultrashort light pulse storage and efficient energy conversion. This paper reviews the latest research progress in storage, release and energy conversion for ultrashort laser pulses in periodical arrays of absorbing medium. Techniques to fabricate such devices are also presented.
3 citations
TL;DR: In this paper, a self-pulsed lasing in the form of a coherent solitary wave train from a periodically amplifying Bragg structure is proposed, and it is shown both analytically and numerically that the generated pulse train propagates in the Bragg-periodic semiconductor quantum-well heterostructures with superluminal group velocity.
Abstract: Self-pulsed lasing in the form of a coherent solitary wave train from a periodically amplifying Bragg structure is proposed. It is shown both analytically and numerically that the generated pulse train propagates in the periodically amplifying Bragg structure chip with superluminal group velocity. Its stability and coherence are in contrast with the inherent instability and chaoticity of self-pulsing from a uniform gain medium embedded in a Bragg reflector. Bragg-periodic semiconductor quantum-well heterostructures are candidates for realizing the required periodically amplifying Bragg structure.
2 citations