ThetaStation is an opto-mechanical tool designed to perform spatial selective light delivery with OptogeniX Lambda fibers.
ThetaStation allows to confine and manually scan the light emitted by a Lambda fiber at sub-sites of its active length. By doing so, sub-portions of the tissue region where the Lambda fiber is implanted can be independently probed: this capability gives access to an additional degree of freedom during optogenetics experiments, which has particular relevance when readout techniques extending along one axis are used simultaneously with the site-selective light delivery (e.g. linear microelectrode array).
Lambda-plus fibers are Lambda fibers selected with strict tolerance on both taper length and taper profile for a constant sub-site length among fibers of different batches, and are strongly recommended to ThetaStation and GalvoStation users. Visit the shop page for an updated specs list of Lambda–plus fibers currently available.
- Laser sources are recommended for the use of ThetaStation.
- Use a Single Mode (SM) input patch cord for best transmission efficiency.
- Position and size of light emitting sub-regions of Lambda fibers, as well as transmission efficiency, need to be calibrated as a function of the micrometer screw position.