Ultra-coherent meta-emitter

Arbitrary thermal wavefront

Synergistically coupling lossy and lossless outer boundaries via a single-mode waveguide, it converts incoherent thermal photons into coherent surface waves for arbitrary wavefront tailoring.

Chen, Rui · Chen, Tianle · Liu, Mengqi · Liu, Xingsi · Zhang, Sen · Raza, Faizan · Dong, Hongguang · Dang, Yongdi · Yu, Zejie · Hu, Huan · Xu, Jianbin · Qiu, Cheng Wei · Ma, Yungui

Nature Communications 2026

Advantages

Experimental demonstration of near-diffraction-limited self-focusing emission

Quasi-2D high-quality thermal holography without speckle noise

Spatial-multiplexed holography

Spatial coherence exceeding 1000λ₀ achievable