Quantitative generation of microfluidic flow by using optically driven microspheres.

Microfluidic flow generation plays a fundamental role in microfluidic systems and shows potential for applications in basic biology and clinical medicine. In this study, an enabling technology is proposed to quantitatively generate microfluid flow through the automatic movement of a microsphere in liquid by using optical tweezers. A closed-loop control strategy with visual servoing feedback is introduced to achieve high precision and robustness.

The study of laser cooling of TeH anion in theoretical approach.

The probabilities of laser cooling of TeH anion via a spin-forbidden transition and a three-electronic-level transition are proposed. The potential energy curves of the XΣ, a∏, A∏, and bΣ electronic states of tellurium monohydride anion (TeH) are calculated using multi-reference configuration interaction method. Davidson corrections, core-valence correlations and spin-orbit coupling effects are also considered.