Abstract
Lanthanide-doped upconverting nanoparticles, converting low frequency light to high frequency light through a multiphoton process, have shown interesting properties for bioimaging. Here, the authors describe a method to deposit a thin layer of upconverting Er3+ doped NaYF4 nanoparticles (15 to 25-nm) on a quasi-zero-average-index crystal over a 2 × 4 mm area to observe light propagation through the structure. Assisted by the photoluminescence of the nanoparticles with upconverting three-photon process, the enhanced field intensity confined in photonic crystals at near infrared wavelength is detected in visible green light under conventional optical microscope. This new technique has distinct advantages over the typical near infrared setups with infrared camera or near-field scanning optical microscope setups.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
