SOMERSET, N.J., April 18 -- NanoOpto Corp., which is applying proprietary nano-optics and nanomanufacturing technology to design and manufacture components for optical networking, announced it has received an additional $4 million, completing its Series A round of venture financing. The new financing comes from DFJ New England and DFJ Gotham and the Harris & Harris Group, with matching investments from the existing equity partners, Bessemer Venture Partners, Morgenthaler Ventures, New Enterprise Associates and US Trust’s Excelsior Venture Partners III, LLC. 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