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| (a) Free-standing laser particles (LP) on a PDMS substrate. (b) Wavelength tuning by PEC etching of original microdisks (i) to give narrowband wavelength distributions (ii-v). (c) Optical micrograph showing cells with incorporated LPs. One LP (LP1) is internalized by a cell at ∼100 min, and another LP (LP2) is internalized by a different cell at ∼140 min. (d) Lasing wavelength differential of the two microdisk lasers in the cell culture over time. Credit: Sarkar et al., doi 10.1117/1.AP.5.5.056004. |
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