4.5 Article

Coherent Time-Stretch Transform for Near-Field Spectroscopy

Journal

IEEE PHOTONICS JOURNAL
Volume 6, Issue 2, Pages -

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2014.2312949

Keywords

Ultrafast measurements; ultrashort pulse characterization; temporal near-field; optical vector spectrum analyzer; optical signal processing; complex-field optical signal characterization; time-resolved spectroscopy; absorption spectroscopy instrumentation

Funding

  1. ONR MURI Near-Field Nanophotonics for Energy Efficient Computing and Communication (NECom) Program

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The coherent time-stretch transform enables high-throughput acquisition of complex optical fields in single-shot measurements. Full-field spectra are recovered via temporal interferometry on waveforms dispersed in the temporal near field. Real-time absorption spectra, including both amplitude and phase information, are acquired at 37 MHz.

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