Grating Diffraction Effects in the THz Domain

• Authors: J. Coutaz , F. Garet , E. Bonnet , A. Tishchenko , O. Parriaux , M. Nazarov
• Languages of publication: EN

Abstracts

EN

We study the far infrared electromagnetic response of grating devices by THz time-domain spectroscopy. We first show that THz waves are efficiently injected into silicon waveguides using grating couplers. Moreover, changing the waveguide material parameters by white-light illumination allows us to strongly modify the coupling efficiency. Then we demonstrate resonant effects in segmented grating structures that act as perfect mirrors at selected wavelengths even for focused beams. About 10 periods of the grating participate in the phenomenon, nevertheless the resonance frequency width of the device remains narrow. This collection of experiments shows that millimeter-size mock-ups and THz waves can be effectively used to extrapolate the optical response of micron-size actual devices.

Keywords

EN

78.47.+p; 72.30.+q; 42.65.Re

Discipline

• 42.65.Re: Ultrafast processes; optical pulse generation and pulse compression(for ultrafast spectroscopy, see 78.47.J-; for ultrafast magnetization dynamics, see 75.78.Jp)
• 72.30.+q: High-frequency effects; plasma effects

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 107
• Issue: 1
• Pages: 26-37

Dates

published

2005-01

received

2004-08-22

Contributors

author

J. Coutaz

• LAHC, University of Savoie, 73 367 Le Bourget du Lac Cedex, France

author

F. Garet

• LAHC, University of Savoie, 73 367 Le Bourget du Lac Cedex, France

author

E. Bonnet

• LTSI, University Jean Monnet, 42 000 Saint-Etienne, France

author

A. Tishchenko

• LTSI, University Jean Monnet, 42 000 Saint-Etienne, France

author

O. Parriaux

• LTSI, University Jean Monnet, 42 000 Saint-Etienne, France

author

M. Nazarov

• International Laser Center, Moscow State University, Moscow, Russia

References

• 1. Terahertz Sources and Systems Electronics, Eds. R. Miles, P. Harrison, D. Lippens, NATO Science Series II, Vol. 27, Kluwer Academic, Dordrecht 2001; Sensing with Terahertz Radiation, Ed. D. Mittleman, Springer Series in Optical Sciences, Vol. 85, Springer, Berlin 2003
• 2. R.A. Cheville, D. Grischkowsky, Appl. Phys. Lett., 67, 1960, 1995
• 3. J.D. Joannopoulos, R.D. Meade, J.N. Winn, Photonic Crystals: Molding the Flow of Light, Princeton University Press, Princeton 1995
• 4. W. Robertson, G. Arjavalingam, R. Meade, K. Brommer, A. Rappe, J. Joannopoulos, Phys. Rev. Lett., 68, 2023, 1992
• 5. A. Chelnokov, S. Rowson, J.-M. Lourtioz, L. Duvillaret, J.-L. Coutaz, Electron. Lett., 33, 1981, 1997
• 6. L. Duvillaret, F. Garet, J.-L. Coutaz, IEEE J. Select. Topics Quant. Electron., 2, 739, 1996
• 7. P. Vincent, in: Electromagnetic Theory of Gratings, Ed. R. Petit, Springer Verlag, Berlin 1980
• 8. L. Mashev, E. Popov, Opt. Commun., 55, 377, 1985; G. Golubenko, A. Svakhin, V. Sychugov, A. Tishchenko, Sov. J. Quant. Electron., 15, 886, 1985; A. Avrutsky, V. Sychugov, J. Mod. Opt., 36, 1527, 1989
• 9. E. Bonnet, A. Cachard, A.V. Tishchenko, O. Parriaux, F. Garet, J.-L. Coutaz, G.A. Racine, in: Conference on Microwaves and Terahertz Photonics, SPIE Photonics Europe, Strasbourg 2004, paper 5466-10
• 10. J.-F. Roux, F. Aquistapace, F. Garet, L. Duvillaret, J.-L. Coutaz, Appl. Opt., 41, 6507, 2002
• 11. N. Katzenellenbogen, D. Grischkowsky, Appl. Phys. Lett., 61, 840, 1992; T.-I. Jeon, D. Grischkowsky, Appl. Phys. Lett., 72, 3032, 1998
• 12. J.-L. Coutaz, L. Duvillaret, F. Garet, S. Rowson, A. Chelnokov, J.-M. Lourtioz, SPIE Terahertz and Gigahertz Photonics, 3795, 457, 1999
• 13. F. Aquistapace, L. Duvillaret, F. Garet, J.-F. Roux, J.-L. Coutaz, J. Appl. Phys., 94, 7888, 2003

Identifiers

DOI

10.12693/APhysPolA.107.26