Optical properties of one-dimensional photonic crystal containing dispersive and active medium

HAN Yan-ling; WANG Hong

LASER TECHNOLOGY > 2008 > 32(2): 207-209.

HAN Yan-ling, WANG Hong. Optical properties of one-dimensional photonic crystal containing dispersive and active medium[J]. LASER TECHNOLOGY, 2008, 32(2): 207-209.

Citation:

HAN Yan-ling, WANG Hong. Optical properties of one-dimensional photonic crystal containing dispersive and active medium[J]. LASER TECHNOLOGY, 2008, 32(2): 207-209.

Citation:

HAN Yan-ling, WANG Hong. Optical properties of one-dimensional photonic crystal containing dispersive and active medium[J]. LASER TECHNOLOGY, 2008, 32(2): 207-209.

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Optical properties of one-dimensional photonic crystal containing dispersive and active medium

HAN Yan-ling^1,2,
WANG Hong^3,4

1.
Institute of Artificial Intelligence, Huazhong University of Science and Technology, Wuhan 430074, China;
2.
Department of Physics, China University of Geosciences, Wuhan 430074, China;
3.
Center of THz Technology, College of Electronic Engineering and Technology, Shenzhen University, Shenzhen 518060, China;
4.
School of PhysicalElectionies, University of Electronic Science and Technology of China, Chendu 610054, China

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Received Date: December 05, 2006
Revised Date: April 09, 2007
Published Date: April 24, 2008

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For well understanding of light propagation in photonic crystal micro-cavity,the transmission spectrum of a one-dimensional photonic crystal contained Lorentz dispersive medium was calculated by means of the finite-difference time-domain method.The influence of refractive index inside micro-cavity on amplification properties and resonant frequency of defect modes was analyzed in detail.The results show that dispersive properties inside the micro-cavity lead to frequency shift of the defect modes.In addition,these defect modes can be also amplified as optical gain is introduced into the system.It is shown that lasing threshold of the defect modes can be significantly reduced through carefully adjusting the refractive index of micro-cavity.
- laser optics,
- photonic crystal,
- finite-difference time-domain method,
- threshold

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