bioimaging 1dual-wavelength control 1optical trapping 1quantum yield enhancement 1sub-diffraction imaging 1upconversion nanoparticles 1
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physics.optics2026
NaBiF: Er, Yb upconversion particle as a multi-functional bio-marker
Atanu Ghosh, Krishna Kumari Swain, Agniva Das +6
The paper presents bismuth‑doped NaBiF4:Er³⁺,Yb³⁺ upconversion particles that show markedly higher quantum yield and controllable photoluminescence using two infrared lasers, enabl…
physics.optics2025
A label-free sub-diffractive technique for 3D intracellular tomography using thermally induced convection currents
Jayesh Goswami, Shataneek Banerjee, Snigdhadev Chakraborty +8
Conventionally, 3-dimensional cellular tomography can be done with light sheet or multi-angle observations. Recently, a new technique was introduced where the cell was rotated usin…