| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
|
|
|
|
Theoretical Design of a Wedged Output Coupler Coated by Capacitive Strip-Grating for Optically Pumped Terahertz Lasers |
QI Chun-Chao1,2, ZUO Du-Luo1,2, MENG Fan-Qi1,2, CHENG Zu-Hai1,2 |
| 1Wuhan National Laboratory for Optoelectronics, Wuhan 4300742College of Optoelectronic Science and Engineering, HuazhongUniversity of Science and Technology, Wuhan 430074 |
|
| Cite this article: |
|
QI Chun-Chao, ZUO Du-Luo, MENG Fan-Qi et al 2010 Chin. Phys. Lett. 27 044205 |
|
|
|
|
Abstract An output coupler for optically pumped terahertz laser consisting of capacitive strip-grating and wedged high-resistivity silicon substrate is designed theoretically and its transmittance performance is also discussed. The etalon effects frequently occurring in previous experiments are effectively suppressed, and thus a flat and accurate transmittance spectrum is obtained in a narrow wavenumber interval of 2 cm-1 near a particular center wavenumber. Furthermore the transmittance sensitivity to the slight shift of substrate thickness is also completely eliminated. The wedged output coupler is easy to fabricate and its substrate may be used repeatedly to meet various transmittance requirements.
|
| Keywords:
42.72.Ai
42.79.Wc
78.20.Bh
|
|
|
Received: 12 October 2009
Published: 27 March 2010
|
|
|
|
|
|
|
|
[1] Sternberg O, Stewart K P, Hor Y, Bandyopadhyay A, Federici J F, Bornefeld M, Mathis Y L, Sliwinski D, Möller K D and Grebel H 2008 J. Appl. Phys. 104 023103
[2] Barnes W L, Murray W A, Dintinger J, Devaux E and Ebbesen T W 2004 Phys. Rev. Lett. 92 107401
[3] Cao Q and Lalanne P 2002 Phys. Rev. Lett. 88 057403
[4] Porto J A, Garcia-Vidal F J and Pendry J B 1999 Phys. Rev. Lett. 83 2845
[5] Lin X L, Zhang J B, Lu Y, Luo F, Lu S L, Yu T M, Dai Z M 2009 Chin. Phys. Lett. 26 124101
[6] Wang Y Z, Shao J D, Dong H C, Zhang W L, Cui Y, Huo H B and Fan Z X 2009 Chin. Phys. Lett. 26 094209
[7] Qi C C, Zuo D L, Lu Y Z and Cheng Z H 2009 Chin. Phys. Lett. 26 124201
[8] Qi C C and Cheng Z H 2009 Chin. Phys. Lett. 26 064201
[9] Gatesman A J, Danylov A, Goyette T M, Dickinson J C, Giles R H, Goodhue W, Waldman J, Nixon W E and Hoen W 2006 Proc. SPIE 6212
[10] Densing R, Erstling A, Gogolewski M, Gemünd H P, Lundershausen G and Gatesman A 1992 Infrared Phys. 33 219
[11] Grischkowsky D, Keiding S, Van Exter M and Fattinger C 1990 J. Opt. Soc. Am. B 7 2006
[12] Ohba T and Ikawa S I 1988 J.Appl.Phys. 64 4141
[13] Born M and Wolf E 1959 Principles of Optics (New York: Pergamon)
[14] Ulrich R 1966 Infrared Phys. 7 37
[15] Xu L H, Lees R M, Vasconcellos C C, Zerbetto S C, Zink L R and Evenson K M 1996 IEEE J. Quantum Electron. 32 392
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
