Fast 3-D temporal focusing microscopy using an electrically tunable lens

Jun Jiang, Dapeng Zhang, Steven Walker, Chenglin Gu, Ya Ke, Wing Ho Yung, Shih-Chi Chen

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

70 Citations (Scopus)

Abstract

In this paper, we present a 3-D temporal focusing microscope based on an electrically tunable lens (ETL) and a femtosecond regenerative laser amplifier. The focus-tunable lens provides a fast and compact way to perform non-mechanical z-scanning and resolves the blurry image issue compared with GVD-based z-scanning methods. The optical performance of the temporal focusing system, including z-scanning characteristics, the associated the magnification variation, and the lateral and axial resolution, has been studied and characterized using calibrated Rhodamine-6G thin film sample, fluorescent beads, and pollen samples. Lastly, we demonstrate the optical cross-sectioning and z-scanning capability with an in vivo experiment, where Ca2+ imaging of neurons in GaCamp6 labeled zebrafish was performed. © 2015 Optical Society of America.
Original languageEnglish
Pages (from-to)24362-24368
JournalOptics Express
Volume23
Issue number19
DOIs
Publication statusPublished - 2015
Externally publishedYes

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