@patent{consonni:hal-02866023, TITLE = {{High-efficiency device for focusing light to subwavelength dimensions}}, AUTHOR = {Consonni, Marianne and Hazart, J{\'e}r{\^o}me and Lerondel, Gilles}, URL = {https://utt.hal.science/hal-02866023}, NUMBER = {US8503075 (B2)}, ADDRESS = {United States}, YEAR = {2013}, MONTH = Aug, HAL_ID = {hal-02866023}, HAL_VERSION = {v1}, }