By simultaneous stimulation of several areas with light pointers of different modulation frequencies, the read out can be performed at the same time.
With the new proposed controller electronic based on a field-programmable gate array (FPGA), it is possible to control the modulation frequencies, phase shifts, and light brightness of multiple light pointers independently and simultaneously.
Additionally, the ability to individually change the light intensities of each light pointer is used to perform signal correction.
A modulated light pointer stimulates the semiconductor structure at the area of interest and a responding photocurrent can be read out.
A spatial resolutions for our electrocatalytic system can be as low as ca. 385 μm (ca. 5-times the size of the light pointer) using a non-structured Si(100) photoanode configured as a single-wire device.
By illuminating the LAPS simultaneously at several positions, of which each is illuminated with a light pointer modulated with a different frequency, the surface potential at all illuminated regions can be measured simultaneously by analyzing the resulting photocurrent.
By using this method, the rate to obtain a complete image of the surface potential distribution across a LAPS wafer can be drastically increased compared to the conventional mode, in which images are obtained by scanning the surface with one single light pointer.
With the widespread adoption of smartphones, cell phones, computers, tablets and laser light pointer cat toys, there are fewer and fewer people who would describe technology as "terrifying". Regardless, technology was the motif for at least a few costumes this year (including mine).
Users accessing SGDs indirectly and through specialized devices must manipulate an object in order to access the system, such as manoeuvring a joystick, head mouse, optical head pointer, light pointer, infrared pointer, or switch access scanner.
Depending on physical abilities and limitations, users may indicate the appropriate message with a body part, light pointer, eye-gaze direction, or a head/mouth stick.
Herein we show that faradaic electrochemistry can be confined to a discrete region of a monolithic semiconducting electrode by means of locally addressing the kinetics of electron transfer with a focused light-pointer.
