Fiber-coupled high-speed asynchronous optical sampling with sub-50 fs time resolution.
Opt Express
; 23(3): 2145-56, 2015 Feb 09.
Article
en En
| MEDLINE
| ID: mdl-25836085
ABSTRACT
We present a fiber-coupled pump-probe system with a sub-50 fs time resolution and a nanosecond time window, based on high-speed asynchronous optical sampling. By use of a transmission grism pulse compressor, we achieve pump pulses with a pulse duration of 42 fs, an average power of 300 mW and a peak power exceeding 5 kW at a pulse repetition rate of 1 GHz after 6 m of optical fiber. With this system we demonstrate thickness mapping of soft X-ray mirrors at a sub-nm thickness resolution on a cm(2) scan area. In addition, terahertz field generation with resolved spectral components of up to 3.5 THz at a GHz frequency resolution is demonstrated.
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MEDLINE
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En
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Opt Express
Asunto de la revista:
OFTALMOLOGIA
Año:
2015
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Article