(IMAGE) Forschungszentrum Juelich Caption Through use of a glass fibre tip, the researchers were able to measure the amount of light that had actually been captured in the solar cell using a method called near-field optical microscopy. Credit Forschungszentrum Jülich Usage Restrictions Image may only be used with approprate credit. Image may only be used in conjunction with media reports about Forschungszentrum Jülich. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.