A focused optical input signal is applied to an optically absorbent wall portion of a supply nozzle 40 in a fluidic device to cause boundary layer separation of flow therein. The boundary layer separation turns the flow to achieve a desired output from the device....http://www.google.com.tw/patents/US4610274?utm_source=gb-gplus-share專利 US4610274 - Fluidic device
