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  1. Article ; Online: Micrometer-thickness liquid sheet jets flowing in vacuum.

    Galinis, Gediminas / Strucka, Jergus / Barnard, Jonathan C T / Braun, Avi / Smith, Roland A / Marangos, Jon P

    The Review of scientific instruments

    2017  Volume 88, Issue 8, Page(s) 83117

    Abstract: Thin liquid sheet jet flows in vacuum provide a new platform for performing experiments in the liquid phase, for example X-ray spectroscopy. Micrometer thickness, high stability, and optical flatness are the key characteristics required for successful ... ...

    Abstract Thin liquid sheet jet flows in vacuum provide a new platform for performing experiments in the liquid phase, for example X-ray spectroscopy. Micrometer thickness, high stability, and optical flatness are the key characteristics required for successful exploitation of these targets. A novel strategy for generating sheet jets in vacuum is presented in this article. Precision nozzles were designed and fabricated using high resolution (0.2 μm) 2-photon 3D printing and generated 1.49 ± 0.04 μm thickness, stable, and <λ/20-flat jets in isopropanol under normal atmosphere and under vacuum at 5 × 10
    Language English
    Publishing date 2017-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209865-9
    ISSN 1089-7623 ; 0034-6748
    ISSN (online) 1089-7623
    ISSN 0034-6748
    DOI 10.1063/1.4990130
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Silver nanoparticles by atomic vapour deposition on an alcohol micro-jet.

    McNally, Michael J / Galinis, Gediminas / Youle, Oliver / Petr, Martin / Prucek, Robert / Machala, Libor / von Haeften, Klaus

    Nanoscale advances

    2019  Volume 1, Issue 10, Page(s) 4041–4051

    Abstract: We achieved sputter deposition of silver atoms onto liquid alcohols by injection of solvents into ... ...

    Abstract We achieved sputter deposition of silver atoms onto liquid alcohols by injection of solvents into vacuum
    Language English
    Publishing date 2019-09-06
    Publishing country England
    Document type Journal Article
    ISSN 2516-0230
    ISSN (online) 2516-0230
    DOI 10.1039/c9na00347a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Optical control of ultrafast structural dynamics in a fluorescent protein.

    Hutchison, Christopher D M / Baxter, James M / Fitzpatrick, Ann / Dorlhiac, Gabriel / Fadini, Alisia / Perrett, Samuel / Maghlaoui, Karim / Lefèvre, Salomé Bodet / Cordon-Preciado, Violeta / Ferreira, Josie L / Chukhutsina, Volha U / Garratt, Douglas / Barnard, Jonathan / Galinis, Gediminas / Glencross, Flo / Morgan, Rhodri M / Stockton, Sian / Taylor, Ben / Yuan, Letong /
    Romei, Matthew G / Lin, Chi-Yun / Marangos, Jon P / Schmidt, Marius / Chatrchyan, Viktoria / Buckup, Tiago / Morozov, Dmitry / Park, Jaehyun / Park, Sehan / Eom, Intae / Kim, Minseok / Jang, Dogeun / Choi, Hyeongi / Hyun, HyoJung / Park, Gisu / Nango, Eriko / Tanaka, Rie / Owada, Shigeki / Tono, Kensuke / DePonte, Daniel P / Carbajo, Sergio / Seaberg, Matt / Aquila, Andrew / Boutet, Sebastien / Barty, Anton / Iwata, So / Boxer, Steven G / Groenhof, Gerrit / van Thor, Jasper J

    Nature chemistry

    2023  Volume 15, Issue 11, Page(s) 1607–1615

    Abstract: The photoisomerization reaction of a fluorescent protein chromophore occurs on the ultrafast timescale. The structural dynamics that result from femtosecond optical excitation have contributions from vibrational and electronic processes and from reaction ...

    Abstract The photoisomerization reaction of a fluorescent protein chromophore occurs on the ultrafast timescale. The structural dynamics that result from femtosecond optical excitation have contributions from vibrational and electronic processes and from reaction dynamics that involve the crossing through a conical intersection. The creation and progression of the ultrafast structural dynamics strongly depends on optical and molecular parameters. When using X-ray crystallography as a probe of ultrafast dynamics, the origin of the observed nuclear motions is not known. Now, high-resolution pump-probe X-ray crystallography reveals complex sub-ångström, ultrafast motions and hydrogen-bonding rearrangements in the active site of a fluorescent protein. However, we demonstrate that the measured motions are not part of the photoisomerization reaction but instead arise from impulsively driven coherent vibrational processes in the electronic ground state. A coherent-control experiment using a two-colour and two-pulse optical excitation strongly amplifies the X-ray crystallographic difference density, while it fully depletes the photoisomerization process. A coherent control mechanism was tested and confirmed the wave packets assignment.
    MeSH term(s) Motion ; Vibration ; Rhodopsin ; Hydrogen Bonding
    Chemical Substances Rhodopsin (9009-81-8)
    Language English
    Publishing date 2023-08-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 2464596-5
    ISSN 1755-4349 ; 1755-4330
    ISSN (online) 1755-4349
    ISSN 1755-4330
    DOI 10.1038/s41557-023-01275-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Electronic Population Transfer via Impulsive Stimulated X-Ray Raman Scattering with Attosecond Soft-X-Ray Pulses.

    O'Neal, Jordan T / Champenois, Elio G / Oberli, Solène / Obaid, Razib / Al-Haddad, Andre / Barnard, Jonathan / Berrah, Nora / Coffee, Ryan / Duris, Joseph / Galinis, Gediminas / Garratt, Douglas / Glownia, James M / Haxton, Daniel / Ho, Phay / Li, Siqi / Li, Xiang / MacArthur, James / Marangos, Jon P / Natan, Adi /
    Shivaram, Niranjan / Slaughter, Daniel S / Walter, Peter / Wandel, Scott / Young, Linda / Bostedt, Christoph / Bucksbaum, Philip H / Picón, Antonio / Marinelli, Agostino / Cryan, James P

    Physical review letters

    2020  Volume 125, Issue 7, Page(s) 73203

    Abstract: Free-electron lasers provide a source of x-ray pulses short enough and intense enough to drive nonlinearities in molecular systems. Impulsive interactions driven by these x-ray pulses provide a way to create and probe valence electron motions with high ... ...

    Abstract Free-electron lasers provide a source of x-ray pulses short enough and intense enough to drive nonlinearities in molecular systems. Impulsive interactions driven by these x-ray pulses provide a way to create and probe valence electron motions with high temporal and spatial resolution. Observing these electronic motions is crucial to understand the role of electronic coherence in chemical processes. A simple nonlinear technique for probing electronic motion, impulsive stimulated x-ray Raman scattering (ISXRS), involves a single impulsive interaction to produce a coherent superposition of electronic states. We demonstrate electronic population transfer via ISXRS using broad bandwidth (5.5 eV full width at half maximum) attosecond x-ray pulses produced by the Linac Coherent Light Source. The impulsive excitation is resonantly enhanced by the oxygen 1s→2π^{*} resonance of nitric oxide (NO), and excited state neutral molecules are probed with a time-delayed UV laser pulse.
    Language English
    Publishing date 2020-06-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.125.073203
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

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  5. Article ; Online: Probing the structure and dynamics of molecular clusters using rotational wave packets.

    Galinis, Gediminas / Cacho, Cephise / Chapman, Richard T / Ellis, Andrew M / Lewerenz, Marius / Mendoza Luna, Luis G / Minns, Russell S / Mladenović, Mirjana / Rouzée, Arnaud / Springate, Emma / Turcu, I C Edmond / Watkins, Mark J / von Haeften, Klaus

    Physical review letters

    2014  Volume 113, Issue 4, Page(s) 43004

    Abstract: Rotational wave packets of the weakly bound C(2)H(2)-He complex have been created using impulsive alignment. The coherent rotational dynamics were monitored for 600 ps enabling extraction of a frequency spectrum showing multiple rotational energy levels ... ...

    Abstract Rotational wave packets of the weakly bound C(2)H(2)-He complex have been created using impulsive alignment. The coherent rotational dynamics were monitored for 600 ps enabling extraction of a frequency spectrum showing multiple rotational energy levels up to J = 4. spectrum has been combined with ab initio calculations to show that the complex has a highly delocalized structure and is bound only by ca. 7 cm(-1). The experiments demonstrate how highly featured rotational spectra can be obtained from an extremely cold environment where only the lowest rotational energy states are initially populated.
    Language English
    Publishing date 2014-07-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.113.043004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

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  6. Article: Formation of coherent rotational wavepackets in small molecule-helium clusters using impulsive alignment.

    Galinis, Gediminas / Mendoza Luna, Luis G / Watkins, Mark J / Ellis, Andrew M / Minns, Russell S / Mladenović, Mirjana / Lewerenz, Marius / Chapman, Richard T / Turcu, I C Edmond / Cacho, Cephise / Springate, Emma / Kazak, Lev / Göde, Sebastian / Irsig, Robert / Skruszewicz, Slawomir / Tiggesbäumker, Josef / Meiwes-Broer, Karl-Heinz / Rouzée, Arnaud / Underwood, Jonathan G /
    Siano, Marco / von Haeften, Klaus

    Faraday discussions

    2014  Volume 171, Page(s) 195–218

    Abstract: We show that rotational line spectra of molecular clusters with near zero permanent dipole moments can be observed using impulsive alignment. Aligned rotational wavepackets were generated by non-resonant interaction with intense femtosecond laser pump ... ...

    Abstract We show that rotational line spectra of molecular clusters with near zero permanent dipole moments can be observed using impulsive alignment. Aligned rotational wavepackets were generated by non-resonant interaction with intense femtosecond laser pump pulses and then probed using Coulomb explosion by a second, time-delayed femtosecond laser pulse. By means of a Fourier transform a rich spectrum of rotational eigenstates was derived. For the smallest cluster, C(2)H(2)-He, we were able to establish essentially all rotational eigenstates up to the dissociation threshold on the basis of theoretical level predictions. The C(2)H(2)-He complex is found to exhibit distinct features of large amplitude motion and very early onset of free internal rotor energy level structure.
    Language English
    Publishing date 2014
    Publishing country England
    Document type Journal Article
    ISSN 1359-6640
    ISSN 1359-6640
    DOI 10.1039/c4fd00099d
    Database MEDical Literature Analysis and Retrieval System OnLINE

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