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Electromagnetic mechanism of deep ultraviolet tip-enhanced Raman scattering (DUV-TERS) is investigated theoretically with the finite-difference time-domain (FDTD) method, stimulated by recent DUV-TERS experimental reports. FDTD results reveal that the strongest electromagnetic enhancement factor for DUV-TERS is as high as 7 orders in the optimal geometry.
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Yang et al. (2011) studied this question.
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