Ultrafast Nonlinear Microphotonics

Ultrafast Microphotonics Group

Our recently established group works at the interface of ultrafast lasers and nonlinear optics. Leveraging the unique characteristics of micro- and nano-photonic systems, the team explores fundamental nonlinear optical phenomena and cross-disciplinary applications in spectroscopy and sensing.

 

 

News

AI-enabled realtime dual-comb molecular fingerprint imaging

03 December 2020

Dual-laser frequency combs and artificial intelligence enable hyperspectral imaging of molecular absorption signatures in realtime. This novel technique may open new opportunities for environmental monitoring, process control and bio-imaging.

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Photo-acosutic dual-comb spectroscopy

20 August 2020

Dual-optical frequency combs interact with molecules to produce a characteristic acoustic fingerprint signal. This novel technique of dual-frequency comb photo-acoustic spectroscopy can overcome the challenges of mid-infrared light detection and be used for sensitive, rapid and broadband sensing of molecular species, even in microscopic samples.

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Visible blue-to-red 10 GHz frequency comb

28 October 2019

A broadband 10 GHz frequency comb in the visible wavelength range is generated via triple-sum frequency mixing of a near-infrared electro-optic source. This approach provides a novel pathway to astronomical frequency combs in the visible domain.

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Nonlinear optical filtering reduces timing jitter of laser pulses

24 October 2019

Nonlinear optical Kerr-cavity soliton dynamics can significantly improve the noise suppression and filter characteristics of a high-Q cavity by keeping information about the intracavity waveform longer than the cavity’s energy storage time. This surprising effect creates new opportunities for microresonator frequency combs and microwave photonics.

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