Now showing 1 - 3 of 3
  • 2012Journal Article
    [["dc.bibliographiccitation.firstpage","463"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Nature Photonics"],["dc.bibliographiccitation.lastpage","468"],["dc.bibliographiccitation.volume","6"],["dc.contributor.author","Solli, Daniel R."],["dc.contributor.author","Herink, Georg"],["dc.contributor.author","Jalali, Bahram"],["dc.contributor.author","Ropers, Claus"],["dc.date.accessioned","2018-11-07T09:08:44Z"],["dc.date.available","2018-11-07T09:08:44Z"],["dc.date.issued","2012"],["dc.description.abstract","Stochastically driven nonlinear processes are responsible for spontaneous pattern formation and instabilities in numerous natural and artificial systems, including well-known examples such as sand ripples, cloud formations, water waves, animal pigmentation and heart rhythms(1-3). Technologically, a type of such self-amplification drives free-electron lasers(4,5) and optical supercontinuum sources(6,7) whose radiation qualities, however, suffer from the stochastic origins(8-11). Through time-resolved observations, we identify intrinsic properties of these fluctuations that are hidden in ensemble measurements. We acquire single-shot spectra of modulation instability produced by laser pulses in glass fibre at megahertz real-time capture rates. The temporally confined nature of the gain physically limits the number of amplified modes, which form an anti-bunched arrangement as identified from a statistical analysis of the data. These dynamics provide an example of pattern competition and interaction in confined nonlinear systems."],["dc.identifier.doi","10.1038/NPHOTON.2012.126"],["dc.identifier.isi","000305905000015"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26093"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1749-4893"],["dc.relation.issn","1749-4885"],["dc.title","Fluctuations and correlations in modulation instability"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]
    Details DOI WOS
  • 2016Journal Article
    [["dc.bibliographiccitation.firstpage","321"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Nature Photonics"],["dc.bibliographiccitation.lastpage","326"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Herink, Georg"],["dc.contributor.author","Jalali, Bahram"],["dc.contributor.author","Ropers, Claus"],["dc.contributor.author","Solli, Daniel R."],["dc.date.accessioned","2018-11-07T10:15:13Z"],["dc.date.available","2018-11-07T10:15:13Z"],["dc.date.issued","2016"],["dc.description.abstract","Mode-locked lasers have enabled some of the most precise measurements ever performed, from attosecond time-domain spectroscopy to metrology with frequency combs. However, such extreme precision belies the complexity of the underlying mode-locking dynamics. This complexity is particularly evident in the emergence of the mode-locked state, an intrinsically singular, non-repetitive transition. Many details of mode-locking are well understood, yet conventional spectroscopy cannot resolve the nascent dynamics in passive mode-locking on their natural nanosecond timescale, the single pulse period. Here, we capture the pulse-resolved spectral evolution of a femtosecond pulse train from the initial fluctuations, recording similar to 900,000 consecutive periods. We directly observe critical phenomena on timescales from tens to thousands of roundtrips, including the birth of the broadband spectrum, accompanying wavelength shifts and transient interference dynamics described as auxiliary-pulse mode-locking. Enabled by the time-stretch transform, the results may impact laser design, ultrafast diagnostics and nonlinear optics."],["dc.identifier.doi","10.1038/nphoton.2016.38"],["dc.identifier.eissn","1749-4893"],["dc.identifier.isi","000374980100014"],["dc.identifier.issn","1749-4885"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/40765"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Nature Publishing Group"],["dc.relation.issn","1749-4893"],["dc.relation.issn","1749-4885"],["dc.title","Resolving the build-up of femtosecond mode-locking with single-shot spectroscopy at 90 MHz frame rate"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
    Details DOI WOS
  • 2017Journal Article
    [["dc.bibliographiccitation.firstpage","50"],["dc.bibliographiccitation.issue","6333"],["dc.bibliographiccitation.journal","Science"],["dc.bibliographiccitation.lastpage","53"],["dc.bibliographiccitation.volume","356"],["dc.contributor.author","Herink, Georg"],["dc.contributor.author","Kurtz, F."],["dc.contributor.author","Jalali, Bahram"],["dc.contributor.author","Solli, Daniel R."],["dc.contributor.author","Ropers, Claus"],["dc.date.accessioned","2018-11-07T10:25:04Z"],["dc.date.available","2018-11-07T10:25:04Z"],["dc.date.issued","2017"],["dc.description.abstract","Solitons, particle-like excitations ubiquitous in many fields of physics, have been shown to exhibit bound states akin to molecules. The formation of such temporal soliton bound states and their internal dynamics have escaped direct experimental observation. By means of an emerging time-stretch technique, we resolve the evolution of femtosecond soliton molecules in the cavity of a few-cycle mode-locked laser. We track two-and three-soliton bound states over hundreds of thousands of consecutive cavity roundtrips, identifying fixed points and periodic and aperiodic molecular orbits. A class of trajectories acquires a path-dependent geometrical phase, implying that its dynamics may be topologically protected. These findings highlight the importance of real-time detection in resolving interactions in complex nonlinear systems, including the dynamics of soliton bound states, breathers, and rogue waves."],["dc.identifier.doi","10.1126/science.aal5326"],["dc.identifier.isi","000398689100034"],["dc.identifier.pmid","28386005"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42777"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation.issn","1095-9203"],["dc.relation.issn","0036-8075"],["dc.title","Real-time spectral interferometry probes the internal dynamics of femtosecond soliton molecules"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]
    Details DOI PMID PMC WOS