John Huennekens


 

Professor of Physics

REU

Department of Physics
16 Memorial Dr. East                        Back to Lehigh Physics Department Home Page
Lehigh University
Bethlehem, PA 18015
USA

phone:  610-758-3926                       Link to Research Experiences for Undergraduates (REU) Home Page
fax: 610-758-5730
jph7@lehigh.edu
 
 
 

Curriculum Vitae
 
 
Laser Safety
    
                  Laser Safety Guidelines (PowerPoint format)

                   AMO Laser Safety Training Handbook

                   Lockout/Tagout Training  

                   Standard Operating Procedures (SOP)

                    

Teaching

        Course Information

            Physics 422 - Fall 2009, Fall 2010, Fall 2011, Fall 2012, Fall 2013

                  Physics 262 - Advanced Lab - Spring 2008 

                  Physics 212 - Fall 2008


                  Physics 421 - Spring 2006, Spring 2007, Spring 2011, Spring 2012, Spring 2013, Spring 2014
                 

                  Physics 362 - Fall 2005  

                   

Research
 

            Group Members

Picture Gallery
 

        Recent Publications

E. H. Ahmed, X. Pan, J. Huennekens, and A. M. Lyyra, “Optical control of collisional population flow between molecular electronic states of different spin multiplicity”, Phys. Rev. A 89, 061401(R) (5 pages) (2014).

E. H. Ahmed, J. Huennekens, T. Kirova, J. Qi and A. M. Lyyra, “The Autler-Townes Effect in Molecules: Observations, Theory, and Applications”, in Adv. At. Mol. Opt. Phys., edited by E. Arimondo, P. R. Berman and C. C. Lin (Elsevier, Amsterdam, 2012), Vol. 61, pp. 467-514.

“Experimental studies of the NaCs 53Π0 and 1(a)3Σ+ states”, S. Ashman, B. McGeehan, C. M. Wolfe, C. Faust, K. Richter, J. Jones, A. P. Hickman, and J. Huennekens, J. Chem. Phys. 136, 114313 (14 pages) (2012).
           
Copyright (2012) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the  American Institute of Physics.  The article may be found at (http://link.aip.org/link/?JCP/136/114313).
           
Supplementary Materials for Experimental studies of the NaCs 53Π0 and 1(a)3Σ+ states”.

“Quantum control of the spin-orbit coupling interaction using the AC Stark effect”,  E. H. Ahmed, S. Ingram, T. Kirova, O. Salihoglu, J. Huennekens, J. Qi, Y. Guan, and A. M. Lyyra, Phys. Rev. Lett. 107, 163601 (5 pages) (2011).

“Electromagnetically induced transparency in an open V-type molecular system”, A. Lazoudis, T. Kirova, P. Qi, E. H. Ahmed, J. Huennekens, and A. M. Lyyra, Phys. Rev. A 83, 063419 (12 pages) (2011).

“Collisional transfer of population and orientation in NaK”, C. M. Wolfe, S. Ashman, J. Bai, B. Beser, E. H. Ahmed, A. M. Lyyra, and J. Huennekens, J. Chem. Phys. 134, 174301 (17 pages) (2011).
            Copyright (2011) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the  American Institute of Physics. 
The article may be found at (http://link.aip.org/link/?JCP/134/174301).
           
Supplementary Materials for “Collisional transfer of population and orientation in NaK”.

“Global analysis of data on the spin-orbit coupled A1Σu+ and b3Πu states of Cs2, J. Bai, E. H. Ahmed, B. Beser, Y. Guan, S. Kotochigova, A. M. Lyyra, S. Ashman, C. M. Wolfe, J. Huennekens, F. Xie, D. Li, L. Li, M. Tamanis, R. Ferber, A. Drozdova, E. Pazyuk, A. V. Stolyarov, J. G. Danzl, H.-C. Nägerl, N. Bouloufa, O. Dulieu, C. Amiot, H. Salami, and T. Bergeman, Phys. Rev. A 83, 032514 (17 pages) (2011).

“NaK bound-free and bound-bound 43Σ+ → a3Σ+ emission”, B. M. McGeehan, S. Ashman, C. M. Wolfe, R. Steinhardt, M. L. Monaco, J. Huennekens, and A. P. Hickman, J. Mol. Spectrosc. 265, 74-80 (2011).
           
Supplementary Materials for “NaK bound-free and bound-bound 43Σ+ → a3Σ+ emission”.

Effect of spin-orbit coupling on the coupled 33Π and 43Π excited states of NaK, A. Wilkins, L. Morgus, J. Huennekens, and A. P. Hickman, J. Mol. Spectrosc. 258, 13-19 (2009).
           
Supplementary Materials for Effect of spin-orbit coupling on the coupled 33Π and 43Π excited states of NaK.

Spectroscopic observations, spin-orbit functions, and coupled channels deperturbation analysis of data on the A1Σu+ and b3Πu states of Rb2, H. Salami, T. Bergeman, B. Beser, J. Bai, E. Ahmed, S. Kotochigova, A. M. Lyyra, J. Huennekens, C. Lisdat, A. V. Stolyarov, O. Dulieu, P. Crozet, and A. J. Ross, Phys. Rev. A 80, 022515 (14 pages) (2009).

Measurement of absolute transition dipole moment functions of the 31Π → 1(X)1Σ+ and 31Π → 2(A)1Σ+ transitions in NaK using Autler-Townes spectroscopy and calibrated fluorescence, S. J. Sweeney, E. Ahmed, P. Qi, T. Kirova, A. M. Lyyra, and J. Huennekens, J. Chem. Phys. 129, 154303 (10 pages) (2008).

“Experimental mapping of the absolute magnitude of the transition dipole moment function μe(R) of the Na2 A1Σu+ - X1Σu+ transition, E. H. Ahmed, P. Qi, B. Beser, J. Bai, R. W. Field, J. P. Huennekens, and A. M. Lyyra, Phys. Rev. A 77, 053414 (7 pages) (2008).

“Hyperfine state changing collisions of Cs(6P1/2) atoms with argon perturbers”, L. Morgus, T. Morgus, T. Drake, and J. Huennekens, Phys. Rev. A. 77, 032704 (12 pages) (2008).

“Spin-orbit coupling of the NaK 33Π and 31Π states: Determination of the coupling constant and observation of quantum interference effects”, S. Eckel, S. Ashman, and J. Huennekens, J. Mol. Spectrosc. 242, 182-194 (2007).           
            Supplementary Table to “Spin-orbit coupling of the NaK 33Π and 31Π states: Determination of the coupling constant and observation of quantum interference effects”.

“The 39K2 23Σg+ state: Observation and analysis”, D. Li, F. Xie, Li Li, V. B. Sovkov, V. S. Ivanov, E. Ahmed, A. M. Lyyra, J. Huennekens, and S. Magnier, J. Chem. Phys. 126, 194314 (9 pages) (2007).
            Appendix to
“The 39K2 23Σg+ state: Observation and analysis”.

Nonadiabatic coupling in the 33Π and 43Π states of NaK, R. D. Miles, L. Morgus, D. O. Kashinski, J. Huennekens, and A. P. Hickman, J. Chem. Phys. 125, 154304 (11 pages) (2006).
            EPAPS tables for Nonadiabatic coupling in the 33Π and 43Π states of NaK.

The NaK 11,3Δ states: Theoretical and experimental studies of fine and hyperfine structure of ro-vibrational levels near the dissociation limit”, A. D. Wilkins, L. Morgus, J. Hernandez-Guzman, J. Huennekens, and A. P. Hickman, J. Chem. Phys. 123, 124306 (12 pages) (2005). 
           
EPAPS tables for “The NaK 11,3Δ states: Theoretical and experimental studies of fine and hyperfine structure of ro-vibrational levels near the dissociation limit”.

“Experimental study of the NaK 33Π double minimum state”, L. Morgus, P. Burns, R. D. Miles, A. D. Wilkins, U. Ogba, A. P. Hickman, and J. Huennekens, J. Chem. Phys. 122, 144313 (10 pages) (2005).  
          
EPAPS tables for “Experimental study of the NaK 33Π double minimum state”.

“The NaK 1(b)3ΠΩ=0 state hyperfine structure and the 1(b)3ΠΩ=0 ~ 2(A)1Σ+ spin-orbit interaction”, P. Burns, A. D. Wilkins, A. P. Hickman, and J. Huennekens - J. Chem. Phys. 122, 074306 (8 pages) (2005).
          
EPAPS tables for “The NaK 1(b)3ΠΩ=0 state hyperfine structure and the 1(b)3ΠΩ=0 ~ 2(A)1Σ+ spin-orbit interaction”.

“Thermalization of fast cesium 5D3/2 atoms in collisions with ground-state cesium atoms”, A. Marks, A. P. Hickman, A. D. Streater, and J. Huennekens - Phys. Rev. A 71, 012711 (14 pages) (2005).

“The 43Σ+ state of NaK: Potential energy curve and hyperfine structure”, P. Burns, L. Sibbach-Morgus, A. D. Wilkins, F. Halpern, L. Clarke, R. D. Miles, Li Li, A. P. Hickman, and J. Huennekens - J. Chem. Phys. 119, 4743-4754 (2003).
            EPAPS Table 1 for “The 43Σ+ state of NaK: Potential energy curve and hyperfine structure”.
            EPAPS Table 2 for “The 43Σ+ state of NaK: Potential energy curve and hyperfine structure”.
            EPAPS Table 3 for “The 43Σ+ state of NaK: Potential energy curve and hyperfine structure”.

“Hyperfine structure of the 13Δg, 23Πg, and 33Σg+ states of 6Li7Li”, Li Li, A. Lazoudis, P. Yi, Y. Liu, J. Huennekens, R. W. Field, and A. M. Lyyra, J. Chem. Phys. 116, 10704–10712 (2002).

“Experimental studies of the NaK 13Δ state”, J. Huennekens, I. Prodan, A. Marks, L. Sibbach, E. Galle, T. Morgus, and Li Li - J. Chem. Phys. 113, 7384-7397 (2000).
            EPAPS Table 1 for “Experimental studies of the NaK 13Δ state”.
            EPAPS Table 2 for “Experimental studies of the NaK 13Δ state”.

“The 43Πg state of Na2: Vibrational numbering and hyperfine structure”, G. Lazarov, A. M. Lyyra, Li Li, and J. Huennekens - J. Mol. Spectrosc. 196, 259-264 (1999).

“Rotational pattern difference in resolved fluorescence spectra with different detection schemes”, H. Chen, Li Li, G. Lazarov, X. Wang, A. M. Lyyra, J. Huennekens, and R. W. Field - J. Mol. Spectrosc. 196, 197-211 (1999).

“New vibrational numbering and potential energy curve for the 33Πg electronic state of the Li2 molecule”, V. S. Ivanov, V. B. Sovkov, Li Li, A. M. Lyyra, G. Lazarov, and J. Huennekens - J. Mol. Spectrosc. 194, 147-155 (1999).

“Experimental study of the NaK 31Π state”, E. Laub, I. Mazsa, S. C. Webb, J. La Civita, I. Prodan, Z. J. Jabbour, R. K. Namiotka, and J. Huennekens - J. Mol. Spectrosc. 193, 376-388 (1999).  “Erratum to Experimental study of the NaK 31Π state[J. Mol. Spectrosc. (1999) 193 376-388], E. Laub, I. Mazsa, S. C. Webb, J. La Civita, I. Prodan, Z. J. Jabbour, R. K. Namiotka, and J. Huennekens - J. Mol. Spectrosc. 221, 142-144 (2003).
            EPAPS Table 1 Revised for  “Erratum to Experimental study of the NaK 31Π state[J. Mol. Spectrosc. (1999) 193 376-388].
            EPAPS Figures 4 and 5 Revised for  “Erratum to Experimental study of the NaK 31Π state[J. Mol. Spectrosc. (1999) 193 376-388].

“Experimental study of cesium 6PJ + 6PJ 7PJ' + 6S  energy pooling collisions and modelling of the excited atom density in the presence of optical pumping and radiation trapping”, F. de Tomasi, S. Miloševic, P. Verkerk, A. Fioretti, M. Allegrini, Z. J. Jabbour, and J. Huennekens - J. Phys. B 30, 4991-5008 (1997).

“Energy-pooling collisions in potassium: 4PJ + 4PJ 4S + (nl = 5P, 6S, 4D)”, R. K. Namiotka, J. Huennekens, and M. Allegrini - Phys. Rev. A 56, 514-520 (1997).

“A study of the predissociation of NaK molecules in the 61Σ+ state by optical-optical double resonance spectroscopy”, Z. J. Jabbour and J. Huennekens - J. Chem. Phys. 107, 1094-1105 (1997).
            PAPS Tables for “A study of the predissociation of NaK molecules in the 61Σ+ state”.

“Energy pooling collisions in cesium: 6PJ + 6PJ 6S + (nl = 7P, 6D, 8S, 4F)”, Z. J. Jabbour, R. K. Namiotka, J. Huennekens, M. Allegrini, S. Miloševic, and F. de Tomasi - Phys. Rev. A 54, 1372-1384 (1996).

“Diffusion of barium atoms in the 6s5d 3DJ metastable levels and the 6s2 1S0 ground state through noble-gas perturbers”, R. K. Namiotka, E. Ehrlacher, J. Sagle, M. Brewer, D. J. Namiotka, A. P. Hickman, A. D. Streater, and J. Huennekens - Phys. Rev. A 54, 449-461 (1996).

“Measurement and modelling of intensity dependent absorption and transit relaxation on the cesium D1 line”, J. Sagle, R. K. Namiotka, and J. Huennekens - J. Phys. B 29, 2629-2643 (1996).

“Measurement of the self-broadening rate coefficients of the cesium resonance lines”, Z. J. Jabbour, J. Sagle, R. K. Namiotka, and J. Huennekens - J. Quant. Spectrosc. Radiat. Transfer 54, 767-778 (1995).

“Thermalization of velocity-selected excited-state populations by resonance exchange collisions and radiation trapping”, J. Huennekens, R. K. Namiotka, J. Sagle, Z. J. Jabbour, and M. Allegrini - Phys. Rev. A. 51, 4472-4482 (1995).

“Excitation transfer among, and quenching of, the barium 6s5d 3DJ metastable levels due to collisions with argon, nitrogen, and barium perturbers”, E. Ehrlacher and J. Huennekens - Phys. Rev. A 50, 4786-4793 (1994).

“Noble-gas  broadening  rates  for  the  6s2 1S0 6s6p 1,3P1 resonance and intercombination lines of barium”, E. Ehrlacher and J. Huennekens - Phys. Rev. A 47, 3097-3104 (1993).

 “Spin-orbit  perturbations  between  the  A(2)1Σ+  and b(1)3Π0 states of NaK”, H. Sun and J. Huennekens - J. Chem. Phys. 97, 4714-4722 (1992).

“Noble-gas broadening rates for barium transitions involving the metastable 6s5d 3DJ levels”, E. Ehrlacher and J. Huennekens - Phys. Rev. A 46, 2642-2648 (1992).

“Radiative lifetimes, collisional mixing, and quenching of the cesium 5DJ levels”, A. Sasso, W. Demtröder, T. Colbert, C. Wang, E. Ehrlacher, and J. Huennekens - Phys. Rev. A 45, 1670-1683 (1992).

“Radiation trapping in the far wings of the foreign-gas broadened potassium resonance lines”, T. Colbert and J. Huennekens - Phys. Rev. A 44, 4753-4756 (1991).

“Radiation trapping under conditions of low to moderate line-center optical depth”, T. Colbert and J. Huennekens - Phys. Rev. A 41, 6145-6154 (1990).

“Bound-free 13Π → 13Σ+ emission from the NaK molecule: determination of the 13Σ+ repulsive wall above the dissociation limit”, M. Masters, J. Huennekens, W. T. Luh, L. Li, A. M. Lyyra, K. Sando, V. Zafiropulos, and W. C. Stwalley - J. Chem. Phys. 92, 5801-5813 (1990).
 
 
 
 
 


URL: http://www.lehigh.edu/~jph7/jph7.html

Last Modified: Tuesday October 30, 2012, 7:38 pm EST.