High signal to noise ratio THz spectroscopy with ASOPS and signal processing schemes for mapping and controlling molecular and bulk relaxation processes

S. Hadjiloucas; G. C. Walker; J. W. Bowen; V.M. Becerra; A. Zafiropoulos; R. K. H. Galvão

High signal to noise ratio THz spectroscopy with ASOPS and signal processing schemes for mapping and controlling molecular and bulk relaxation processes

S. Hadjiloucas, G. C. Walker, J. W. Bowen, V.M. Becerra, A. Zafiropoulos, R. K. H. Galvão

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Abstract

Asynchronous Optical Sampling has the potential to improve signal to noise ratio in THz transient sperctrometry. The design of an inexpensive control scheme for synchronising two femtosecond pulse frequency comb generators at an offset frequency of 20 kHz is discussed. The suitability of a range of signal processing schemes adopted from the Systems Identification and Control Theory community for further processing recorded THz transients in the time and frequency domain are outlined. Finally, possibilities for femtosecond pulse shaping using genetic algorithms are mentioned.

Original language	English
Journal	Journal of Physics: Conference Series
Volume	183
Publication status	Published - 2009

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title = "High signal to noise ratio THz spectroscopy with ASOPS and signal processing schemes for mapping and controlling molecular and bulk relaxation processes",

abstract = "Asynchronous Optical Sampling has the potential to improve signal to noise ratio in THz transient sperctrometry. The design of an inexpensive control scheme for synchronising two femtosecond pulse frequency comb generators at an offset frequency of 20 kHz is discussed. The suitability of a range of signal processing schemes adopted from the Systems Identification and Control Theory community for further processing recorded THz transients in the time and frequency domain are outlined. Finally, possibilities for femtosecond pulse shaping using genetic algorithms are mentioned.",

author = "S. Hadjiloucas and Walker, {G. C.} and Bowen, {J. W.} and V.M. Becerra and A. Zafiropoulos and Galv{\~a}o, {R. K. H.}",

note = "Dielectrics 2009: Measurement Analysis and Applications, 40th Anniversary Meeting",

year = "2009",

language = "English",

volume = "183",

journal = "Journal of Physics: Conference Series",

issn = "1742-6596",

publisher = "IOP Publishing",

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TY - JOUR

T1 - High signal to noise ratio THz spectroscopy with ASOPS and signal processing schemes for mapping and controlling molecular and bulk relaxation processes

AU - Hadjiloucas, S.

AU - Walker, G. C.

AU - Bowen, J. W.

AU - Becerra, V.M.

AU - Zafiropoulos, A.

AU - Galvão, R. K. H.

N1 - Dielectrics 2009: Measurement Analysis and Applications, 40th Anniversary Meeting

PY - 2009

Y1 - 2009

N2 - Asynchronous Optical Sampling has the potential to improve signal to noise ratio in THz transient sperctrometry. The design of an inexpensive control scheme for synchronising two femtosecond pulse frequency comb generators at an offset frequency of 20 kHz is discussed. The suitability of a range of signal processing schemes adopted from the Systems Identification and Control Theory community for further processing recorded THz transients in the time and frequency domain are outlined. Finally, possibilities for femtosecond pulse shaping using genetic algorithms are mentioned.

AB - Asynchronous Optical Sampling has the potential to improve signal to noise ratio in THz transient sperctrometry. The design of an inexpensive control scheme for synchronising two femtosecond pulse frequency comb generators at an offset frequency of 20 kHz is discussed. The suitability of a range of signal processing schemes adopted from the Systems Identification and Control Theory community for further processing recorded THz transients in the time and frequency domain are outlined. Finally, possibilities for femtosecond pulse shaping using genetic algorithms are mentioned.

M3 - Article

SN - 1742-6596

VL - 183

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

ER -

High signal to noise ratio THz spectroscopy with ASOPS and signal processing schemes for mapping and controlling molecular and bulk relaxation processes

Abstract

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