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. Author manuscript; available in PMC: 2015 Jul 27.
Published in final edited form as: Opt Lett. 2015 Jul 15;40(14):3300–3303. doi: 10.1364/OL.40.003300

Fig. 1.

Fig. 1

Experimental configuration; XY: galvo-scanning mirrors, SL: scan lens, TL: tube lens, Z: axial scanning mirror, λ/4: quarter-wave plate, PBS: polarizing beam splitter, DC: dichroic mirror, and PMT: photonmultiplier tube.