Far-field wireless power transmission module with MEMS-based laser steering for optogenetic applications

Area of Science:

• Biomedical Engineering
• Optoelectronics
• Neuroscience

Background:

• Optogenetics requires precise, localized neural activation.
• Existing wireless power solutions for optogenetics are often bulky or limited in range.
• Need for miniaturized, mobile, and efficient power delivery systems.

Purpose of the Study:

• To develop a far-field wireless power transmission system for optogenetic applications.
• To enable mobile, battery-free operation of optogenetic probes.
• To demonstrate precise laser steering and efficient power delivery.

Main Methods:

• Integration of a MEMS-based active micromirror into a mobile laser steering module (MOLASM).
• Development of a battery-free architecture for miniaturized and lightweight operation.
• Utilizing laser superimposition from multiple MOLASMs to enhance power transmission.
• Experimental evaluation of dynamic beam steering and power delivery performance.

Main Results:

• Demonstrated precise laser steering capabilities with the MOLASM.
• Achieved efficient wireless power transmission to optogenetic probes over far-field distances.
• Validated the battery-free, continuous operation of the system.
• Confirmed scalability and adaptability of energy delivery through laser superimposition.

Conclusions:

• The MOLASM system offers a flexible and practical solution for wirelessly powering optogenetic probes.
• This technology facilitates advanced neuromodulation studies by enabling untethered, precise neural activation.
• The battery-free, mobile design overcomes limitations of current optogenetic power delivery methods.