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This paper deals with the dual- band response of double ring metal array structure and anti-double ring structure in a terahertz wave range. The two samples are complementary in structure and their responses in the terahertz band are also complementary. The double ring structure shows two absorption crests and the anti-double ring structure shows two corresponding peaks at the same frequencies. The inner ring of the double ring structure is a source of high-frequency response, while the outer ring leads to the low-frequency vibration. Therefore, we can change the inner and the outer ring size respectively to control the terahertz response. And this response is unaffected by the period of the structure. The double ring structures provide a new method to produce multi-frequency terahertz resonator.
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Keywords:
- THz /
- resonator /
- sub wavelength array /
- FDTD
[1] Landy N I, Bingham C M, Tyler T 2009 Phys. Rev. B 79 125104
[2] Shi Y L, Zhou Q L, Zhang C L 2009 Chin. Phys. B 18 12
[3] Pickwell E, Cole B E, Fitzgerald A J 2004 Appl. Phys. Lett. 84 2190
[4] Ma X J, Zhao H W 2008 Chin. Phys. B 17 6
[5] Ma S H, Shi Y L, Xu X L 2006 Chin. Phys. 15 8
[6] Laman N, Sree Harsha S 2008 Optics Express 16 4094
[7] Baker C, Lo T, Tribe W R, Cole B E 2007 IEEE 95 1559
[8] Weiss C, Torosyan G, Avetisyan Y 2001 Optics Letters 26 563
[9] Sasa kiyuzo, Yuriavetisyan, Kawasekodo 2002 Appl. Phys. Lett. 81 3323
[10] Ma Y, Khalid A, Drysdale T D 2009 Optics Letters 34 10
[11] Ma Y, Chen Q, Khalid A 2009 Optics Letters 35 4
[12] Pendry J B, Martín-Moreno L 2004 Science Magazine 5 847
[13] Pendry J B 2000 Phys. Rev. Lett. 85 3966
[14] Grischkowsky D, Keiding S 2006 J. Opt. Soc. Am. B 1990 7
[15] Schall M, Walther M, Jepsen P U 2001 Phys. Rev. B 64 094301
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[1] Landy N I, Bingham C M, Tyler T 2009 Phys. Rev. B 79 125104
[2] Shi Y L, Zhou Q L, Zhang C L 2009 Chin. Phys. B 18 12
[3] Pickwell E, Cole B E, Fitzgerald A J 2004 Appl. Phys. Lett. 84 2190
[4] Ma X J, Zhao H W 2008 Chin. Phys. B 17 6
[5] Ma S H, Shi Y L, Xu X L 2006 Chin. Phys. 15 8
[6] Laman N, Sree Harsha S 2008 Optics Express 16 4094
[7] Baker C, Lo T, Tribe W R, Cole B E 2007 IEEE 95 1559
[8] Weiss C, Torosyan G, Avetisyan Y 2001 Optics Letters 26 563
[9] Sasa kiyuzo, Yuriavetisyan, Kawasekodo 2002 Appl. Phys. Lett. 81 3323
[10] Ma Y, Khalid A, Drysdale T D 2009 Optics Letters 34 10
[11] Ma Y, Chen Q, Khalid A 2009 Optics Letters 35 4
[12] Pendry J B, Martín-Moreno L 2004 Science Magazine 5 847
[13] Pendry J B 2000 Phys. Rev. Lett. 85 3966
[14] Grischkowsky D, Keiding S 2006 J. Opt. Soc. Am. B 1990 7
[15] Schall M, Walther M, Jepsen P U 2001 Phys. Rev. B 64 094301
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