Phase‐shaping strategies for coherent anti‐Stokes Raman scattering

Rhijn, A.C.W. van; Jurna, M.; Jafarpour, Aliakbar; Herek, Jennifer Lynn; Offerhaus, Herman L.

doi:10.1002/jrs.2922

Cited by 22 publications

(18 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…18 The spontaneous Raman signal is proportional to the imaginary part of the complex response, and therefore contains both amplitude and phase information. The complex vibrational response of a molecule is a sum of different vibrational resonances, where each vibrational resonance can be considered as a damped driven harmonic oscillator.…”

Section: -17mentioning

confidence: 99%

Computational optimization of phase shaped CARS

et al. 2012

View full text Add to dashboard Cite

We explore strategies for optimizing selectivity, specificity, and sensitivity in broadband CARS by precalculating pulse shapes using an evolutionary algorithm. We show the possibility of selective excitation of a single constituent in a test case of a mixture of five resonant compounds. The obtainable contrast ratio for a test case of PMMA in a mixture of five resonant compounds is predicted to be 2000:1, and is related the uniqueness of the complex vibrational response of the compound of interest compared to that of the surrounding molecules. Furthermore we investigate how the effects of homodyne mixing in the focal volume affect the obtainable contrast ratio and how noise affects the optimization. We also show preliminary results of experimental optimization of the CARS signal from PMMA microspheres, resulting in high contrast imaging, free of non-resonant background signal.

show abstract

Section: -17mentioning

confidence: 99%

Computational optimization of phase shaped CARS

et al. 2012

View full text Add to dashboard Cite

show abstract

“…This availability of ultra-fast pulses has driven many research areas from basic physics to biological and medical research and to mechanical engineering. Spectacular results have been achieved such as extremely accurate optical frequency combs 3 , high speed gas spectroscopy 4 or coherent excitation applications in chemistry and biophotonics 5 . The technological improvements in laser systems now enable application of many of the developed techniques based on ultrafast optical pulses, but the cost of such laser systems is still fairly high.…”

Section: Introductionmentioning

confidence: 99%

“…Systems are needed to stabilize the laser operation as for example applications of stabilized frequency combs in telecommunication (clock distribution, multi-wavelength lasers for wavelength-division multiplexed systems) or in high speed gas spectroscopy 4 . In applications in biophotonics and coherent excitation such as multi-photon microscopy or CARS-microscopy 5 one requires (amplified) optical pulses of a specific intensity and phase at a given time in a specific location of a sample. Therefore not only stability is required but the amplitude and phase of each mode of the comb must be controlled to obtain the optimal optical pulse at the sample.…”

Section: Introductionmentioning

confidence: 99%

Integrated InP based modelocked lasers and pulse shapers

Bente¹,

Tahvili²,

Moskalenko³

et al. 2013

SPIE Proceedings

View full text Add to dashboard Cite

Integrated InP based modelocked lasers and pulse shapersBente, E.A.J.M.; Tahvili, M.S.; Moskalenko, V.; Latkowski, S.; Wale, M.J.; Javaloyes, J.; Landais, P.; Smit, M.K. Published in:Integrated Optics: Devices, Materials, and Technologies XVII, San Francisco, 2013 DOI: 10.1117 Published: 01/01/2013 Document VersionPublisher's PDF, also known as Version of Record (includes final page, issue and volume numbers)Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. ABSTRACTIn this paper we present recent results obtained in the area of monolithically integrated modelocked semiconductor laser systems using generic InP based integration platform technology operating around 1550nm. Standardized components defined in this technology platform can be used to design and realize short pulse lasers and optical pulse shapers. This makes that these devices can be realized on wafers that can contain many other devices. In the area of short pulse lasers we report design studies based on measured optical amplifier performance data. This work has the ultimate goal to establish a library of widely applicable short pulse laser designs. Such lasers can include components for e.g. wavelength control. An important boundary condition on the laser design is that the laser can be located anywhere on the InP chip.In the area of pulse shaping we report on a 20 channel monolithic pulse shaper capable of phase and amplitude control in each channel. Special attention is given to the calibration of the phase modulator and amplifier settings. Pulse compression and manipulation of pulse generated from modelocked semiconductor lasers is demonstrated using a 40 GHz quantum ...

show abstract

“…Usually, complete spectra have to be taken to make use of this advantage. In a theoretical study, van Rhijn et al [6] investigate whether the use of optimally shaped laser pulses are suitable for determining the presence of a specific molecule unambiguously. They apply a covariance matrix adaption evolution strategy to determine pulses, such that from the detection of the integrated output pulse energy of the nonlinear signal in a broadband pump and probe, and narrowband Stokes field CARS scheme molecule-specific contrast can be achieved.…”

mentioning

confidence: 99%

“…Thin films of the polymer poly(3-hexylthiophene) and blends of the soluble fullerene derivative [6,6]-phenyl C 61 -butyric acid methyl ester with poly(3-hexylthiophene) are used as samples. In the paper it can be shown that the Raman spectral information can be used to identify fullerene inclusions in these polymer/fullerene blends.…”

mentioning

confidence: 99%