| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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A Novel Method for Enhancing Goos-Hänchen Shift in Total Internal Reflection |
| ZHANG Zhi-Wei1,2, WEN Ting-Dun1,2, ZHANG Ji-Long 1,2 |
| 1Key Laboratory of Instrumentation Science and Dynamic Measurement (Ministry of Education), North University of China, Taiyuan 0300512National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan 030051 |
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| Cite this article: |
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ZHANG Zhi-Wei, WEN Ting-Dun, ZHANG Ji-Long 2009 Chin. Phys. Lett. 26 034214 |
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Abstract Due to the tiny shift in order of optical wavelength for Goos-Hänchen (GH) shift, it is very difficult to directly measure and apply the GH shift. We develop a new method for enhancing GH shift of both TE and TM polarized waves. The method is based on a total reflection prism made of BK9 glass combined with a precise measurement of the resulting spatial displacement with a one-dimensional charge coupled device (CCD). Measurements are performed to examine the validity of the method. Experimental and theoretical results indicate the feasibility of the method with an enhancement in optical wavelenghth shift at millimetre scale. The method is advantageous to application the GH shift in the optical domain, and is also meaningful for measuring even smaller changes in the refractive index of a liquid.
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| Keywords:
42.25.Gy
42.25.-p
78.20.Bh
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Received: 06 October 2008
Published: 19 February 2009
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| PACS: |
42.25.Gy
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(Edge and boundary effects; reflection and refraction)
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42.25.-p
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(Wave optics)
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78.20.Bh
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(Theory, models, and numerical simulation)
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