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Hearing carrier-envelope offset frequency and phase in air with a microphone

Journal Article · · Optica
Attosecond science and frequency metrology rely on the precise measurement and control of the laser pulse waveform, a feat traditionally achieved using optoelectronic techniques. In this study, we conducted a laser-induced acoustic experiment in air ionized by carrier-envelope phase (CEP)-stabilized sub-4 fs pulses. Our results reveal that the acoustic signal exhibits CEP dependence in few-cycle pulses, primarily through amplitude modulation from laser-driven ionization. This optoacoustic phenomenon is, to the best of our knowledge, a novel phenomenon that enables not only the measurement of the carrier-envelope offset frequency but also the direct characterization of the waveform of optical pulses through a microphone. Our study highlights the potential of laser-induced acoustic waves for advancing ultrafast science.
Research Organization:
Kansas State University, Manhattan, KS (United States)
Sponsoring Organization:
Taiwan National Science and Technology Council; USDOE
Grant/Contract Number:
FG02-86ER13491
OSTI ID:
2543126
Alternate ID(s):
OSTI ID: 3003076
Journal Information:
Optica, Journal Name: Optica Journal Issue: 4 Vol. 12; ISSN 2334-2536
Publisher:
Optica Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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