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Super-resolution microscopy of single rare-earth emitters

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arxiv 1710.01680 v1 pith:4PCDSKOI submitted 2017-10-04 physics.optics

R. Kolesov , S. Lasse , C. Rothfuchs , A.D. Wieck , K. Xia , T. Kornher , J. Wrachtrup This is my paper · ORCID
classification physics.optics
keywords resolutionapproxcentersdepletionmicroscopyrare-earthsinglested
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abstract

We demonstrate super-resolution imaging of single rare-earth emitting centers, namely, trivalent cerium, in yttrium aluminum garnet (YAG) crystals by means of stimulated emission depletion (STED) microscopy. The achieved all-optical resolution is $\approx$ 80nm. Similar results were obtained on H3 color centers in diamond with resolution of $\approx$ 60nm. In both cases, STED resolution is improving slower than the inverse square-root of the depletion beam intensity. This is caused by excited state absorption (ESA) and interaction of the emitter with non-fluorescing crystal defects in its near surrounding.

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