| 1. | FDFD has also been used for various scattering problems at optical frequencies.
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| 2. | An optical fibre is a dielectric guide designed to work at optical frequencies.
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| 3. | This assumption is typically valid in transparent media in the optical frequency range.
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| 4. | Currently, optical frequency combs have provided a much simpler method of measuring optical frequencies.
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| 5. | High permittivity dielectric particles can be used to simulate silicon behaviour at optical frequencies.
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| 6. | Currently, optical frequency combs have provided a much simpler method of measuring optical frequencies.
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| 7. | At infrared and optical frequencies, a common technique is ellipsometry.
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| 8. | A "'frequency comb "'allows a direct link from radio frequency standards to optical frequencies.
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| 9. | A similar approach uses spectral shaping of optical frequency combs to create multiple pulse trains.
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| 10. | Alternative DTS evaluation units deploy the method of Optical Frequency Domain Reflectometry ( OFDR ).
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