Imperial College London

DrRichardHendricks

Faculty of Natural SciencesDepartment of Physics

Academic Visitor
 
 
 
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Contact

 

+44 (0)20 7594 2979r.hendricks

 
 
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Location

 

7.37Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

18 results found

Dunseith DP, Truppe S, Hendricks RJ, Sauer BE, Hinds EA, Tarbutt MRet al., 2015, A high quality, efficiently coupled microwave cavity for trapping cold molecules, JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, Vol: 48, ISSN: 0953-4075

JOURNAL ARTICLE

Hendricks RJ, Holland DA, Truppe S, Sauer BE, Tarbutt MRet al., 2014, Vibrational branching ratios and hyperfine structure of <sup>11</sup>BH and its suitability for laser cooling, Frontiers of Physics, Vol: 2, Pages: 1-8, ISSN: 2095-0462

© 2014 Hendricks, Holland, Truppe, Sauer and Tarbutt. The simple structure of the BH molecule makes it an excellent candidate for direct laser cooling. We measure the branching ratios for the decay of the A 1 Π (v ′ = 0) state to vibrational levels of the ground state, X 1 Σ + , and find that they are exceedingly favorable for laser cooling. We verify that the branching ratio for the spin-forbidden transition to the intermediate a 3 Π state is inconsequentially small. We measure the frequency of the lowest rotational transition of the X state, and the hyperfine structure in the relevant levels of both the X and A states, and determine the nuclear electric quadrupole and magnetic dipole coupling constants. Our results show that, with a relatively simple laser cooling scheme, a Zeeman slower and magneto-optical trap can be used to cool, slow and trap BH molecules.

JOURNAL ARTICLE

Truppe S, Hendricks RJ, Hinds EA, Tarbutt MRet al., 2014, MEASUREMENT OF THE LOWEST MILLIMETER-WAVE TRANSITION FREQUENCY OF THE CH RADICAL, ASTROPHYSICAL JOURNAL, Vol: 780, ISSN: 0004-637X

JOURNAL ARTICLE

Truppe S, Hendricks RJ, Tokunaga SK, Hinds EA, Tarbutt MRet al., 2014, Microwave spectroscopy of A-doublet transitions in the ground state of CH, JOURNAL OF MOLECULAR SPECTROSCOPY, Vol: 300, Pages: 70-78, ISSN: 0022-2852

JOURNAL ARTICLE

Bulleid NE, Skoff SM, Hendricks RJ, Sauer BE, Hinds EA, Tarbutt MRet al., 2013, Characterization of a cryogenic beam source for atoms and molecules, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 15, Pages: 12299-12307, ISSN: 1463-9076

JOURNAL ARTICLE

Truppe S, Hendricks RJ, Tokunaga SK, Lewandowski HJ, Kozlov MG, Henkel C, Hinds EA, Tarbutt MRet al., 2013, A search for varying fundamental constants using hertz-level frequency measurements of cold CH molecules, NATURE COMMUNICATIONS, Vol: 4, ISSN: 2041-1723

JOURNAL ARTICLE

Bulleid NE, Hendricks RJ, Hinds EA, Meek SA, Meijer G, Osterwalder A, Tarbutt MRet al., 2012, Traveling-wave deceleration of heavy polar molecules in low-field-seeking states, PHYSICAL REVIEW A, Vol: 86, ISSN: 1050-2947

JOURNAL ARTICLE

Skoff SM, Hendricks RJ, Sinclair CDJ, Hudson JJ, Segal DM, Sauer BE, Hinds EA, Tarbutt MRet al., 2011, Diffusion, thermalization, and optical pumping of YbF molecules in a cold buffer-gas cell, PHYSICAL REVIEW A, Vol: 83, ISSN: 1050-2947

JOURNAL ARTICLE

Zhuang X, Le A, Steimle TC, Bulleid NE, Smallman IJ, Hendricks RJ, Skoff SM, Hudson JJ, Sauer BE, Hinds EA, Tarbutt MRet al., 2011, Franck-Condon factors and radiative lifetime of the A(2)Pi(1/2)-X-2 Sigma(+) transition of ytterbium monofluoride, YbF, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 13, Pages: 19013-19017, ISSN: 1463-9076

JOURNAL ARTICLE

Poschinger UG, Huber G, Ziesel F, Deiss M, Hettrich M, Schulz SA, Singer K, Poulsen G, Drewsen M, Hendricks RJ, Schmidt-Kaler Fet al., 2009, Coherent manipulation of a Ca-40(+) spin qubit in a micro ion trap, JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, Vol: 42, ISSN: 0953-4075

JOURNAL ARTICLE

Skoff SM, Hendricks RJ, Sinclair CDJ, Tarbutt MR, Hudson JJ, Segal DM, Sauer BE, Hinds EAet al., 2009, Doppler-free laser spectroscopy of buffer-gas-cooled molecular radicals, NEW JOURNAL OF PHYSICS, Vol: 11, ISSN: 1367-2630

JOURNAL ARTICLE

Champenois C, Hagel G, Knoop M, Houssin M, Zumsteg C, Vedel F, Hendricks RJ, Sorensen JL, Drewsen Met al., 2008, Two photon Doppler cooling of atoms with an intermediate metastable state

Atomic clock performances are limited by the fluctuations of the local oscillator frequency. During an atomic clock operation, only a fraction of the cycle time is devoted to the excitation of the clock transition, limiting the sensitivity to these fluctuations and thus the ability to correct them. The rest of the time is needed to detect the probability of transition to the clock excited state or, for example, to cool the atoms to temperatures compatible with the required precision. A key issue to reach high clock stability is to reduce these dead times. We propose a laser excitation scheme that could shorten the laser cooling time and the detection time for some of the atomic species proposed as frequency standards in the optical domain like Ca+, Sr+, Ca, Sr and Yb.

CONFERENCE PAPER

Hendricks RJ, Phillips ES, Segal DM, Thompson RCet al., 2008, Laser cooling in the Penning trap: an analytical model for cooling rates in the presence of an axializing field, JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, Vol: 41, ISSN: 0953-4075

JOURNAL ARTICLE

Hendricks RJ, Sorensen JL, Champenois C, Knoop M, Drewsen Met al., 2008, Doppler cooling of calcium ions using a dipole-forbidden transition, PHYSICAL REVIEW A, Vol: 77, ISSN: 1050-2947

JOURNAL ARTICLE

Phillips ES, Hendricks RJ, Abdulla AM, Ohadi H, Crick DR, Koo K, Segal DM, Thompson RCet al., 2008, Dynamics of axialized laser-cooled ions in a Penning trap, PHYSICAL REVIEW A, Vol: 78, ISSN: 1050-2947

JOURNAL ARTICLE

Hendricks RJ, Grant DM, Herskind PF, Dantan A, Drewsen Met al., 2007, An all-optical ion-loading technique for scalable microtrap architectures, APPLIED PHYSICS B-LASERS AND OPTICS, Vol: 88, Pages: 507-513, ISSN: 0946-2171

JOURNAL ARTICLE

Hendricks RJ, Grant DM, Herskind PF, Dantan A, Søremen JL, Drewsen Met al., 2007, An all-optical ion-loading technique for scalable microtrap architectures

CONFERENCE PAPER

Hendricks R, 2000, CERN opens antimatter factory, Physics World, Vol: 13, ISSN: 0953-8585

JOURNAL ARTICLE

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