melvina chen

Abstract Mechanical forces induced by high-speed oscillations provide an elegant way to dynamically alter the fundamental properties of materials such as refractive index, absorption coefficient and gain dynamics. Although the precise control of mechanical oscillation has been well developed in the past decades, the notion of dynamic mechanical forces has not been harnessed for developing tunable lasers.

Abstract Nanowires are promising platforms for realizing ultra-compact light sources for photonic integrated circuits. In contrast to impressive progress on light confinement and stimulated emission in III-V and II-VI semiconductor nanowires, there has been no experimental demonstration showing the potential to achieve strong cavity effects in a bottom-up grown single group-IV nanowire, which is a prerequisite for realizing silicon-compatible infrared nanolasers.

Graphical Abstract Nanobeam Lasers In article number 2207611, Youngmin Kim, Donguk Nam, and co-workers report a scalable technique to produce identical on-chip lasers. The emission wavelengths of multiple GeSn nanolasers are precisely aligned by utilizing dynamically tunable strain engineering. This groundbreaking approach opens new avenues for realizing large-scale photonic-integrated circuits equipped with an array of indistinguishable light sources.