Figure 2 | Cathodoluminescence steering. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure 2 | Cathodoluminescence steering.

Caption

Figure 2 | Cathodoluminescence steering. The working principle of the light emission steering is based on the harmonic modulation of the induced dipole at each array element, with some modulation frequency ξ. (a) Dependence of the resonant emission angle with the modulation frequency, with dots on the grayed area representing kinetically forbidden modes. The mode ℓ=0 corresponds to regular Smith-Purcell emission. (b) Far-field emission profile of the cathodoluminescence emitted by the array modulated by the same-color profile as in (a).

Credit

Eduardo J. C. Dias et al.

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CC BY

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