164 citations · 446 across the 13 of their papers we have counts for
13 papers
Fourier-transform spectroscopy of CO and deperturbation analysis of the A ( = 0 - 3) levels
R. Hakalla, M. L. Niu, R. W. Field +9
The high-resolution B - A (0, 0) and (0, 3) emission bands of the less-abundant CO isotopologue have been investigated by Fourier-transform spectroscopy i…
Dissociation energy of the hydrogen molecule at 10 accuracy
C. Cheng, J. Hussels, M. Niu +11
The ionization energy of ortho-H has been determined to be cm from measurements of the GK(1,1)--X(0,1)…
Precision measurements and test of molecular theory in highly-excited vibrational states of H
T. Madhu Trivikram, M. L. Niu, P. Wcisło +2
Accurate transition energies in molecular hydrogen were determined for transitions originating from levels with highly-excited vibrational quantum number,…
Spectroscopy and perturbation analysis of the A(v=0) state of CO
M. L. Niu, R. Hakalla, T. Madhu Trivikram +4
The lowest level of the A, state of the CO isotopologue of carbon monoxide has been reinvestigated with a variety of high resolution spectroscopic techniqu…
Constraint on a cosmological variation in the proton-to-electron mass ratio from electronic CO absorption
M. Daprà, M. L. Niu, E. J. Salumbides +2
Carbon monoxide (CO) absorption in the sub-damped Lyman- absorber at redshift , toward the background quasar SDSS J123714.60+064759.5 (J1237+0647), was inve…
Spectroscopy and perturbation analysis of the CO AX (2,0), (3,0) and (4,0) bands
M. L. Niu, E. J. Salumbides, A. N. Heays +3
The (2,0) (3,0) and (4,0) bands of the AX system of CO have been re-investigated by high-resolution vacuum ultraviolet absorption spectroscopy. A VUV Fou…
Test of quantum chemistry in vibrationally-hot hydrogen molecules
M. L. Niu, E. J. Salumbides, W. Ubachs
Precision measurements are performed on highly excited vibrational quantum states of molecular hydrogen. The rovibrational levels of H (), lying only $2…
VUV-synchrotron absorption studies of N and CO at 900 K
M. L. Niu, A. N. Heays, S. Jones +5
Photoabsorption spectra of N and CO were recorded at 900K, using the vacuum-ultraviolet Fourier-transform spectrometer at the DESIRS beamline of synchrotron SOLEIL. These high-…
High-precision laser spectroscopy of the CO A - X (2,0), (3,0) and (4,0) bands
M. L. Niu, F. Ramirez, E. J. Salumbides +1
High-precision two-photon Doppler-free frequency measurements have been performed on the CO A - X fourth-positive system (2,0), (3,0), and (4,0) bands. Absolute frequen…
Precision spectroscopy of the () rovibrational splittings in H, HD and D
Ming Li Niu, Edcel J. Salumbides, Gareth. D. Dickenson +2
Accurate experimental values for the vibrational ground tone or fundamental vibrational energy splitting of H, HD, and D are presented. Absolute accuracies of $2\times10^{-…
The Fundamental Vibration of Molecular Hydrogen
Gareth. D. Dickenson, Ming Li Niu, Edcel J. Salumbides +4
The fundamental ground tone vibration of H2, HD, and D2 is determined to an accuracy of 2 x 10^-4 cm^-1 from Doppler-free laser spectroscopy in the collisionless environment of a m…
Precision spectroscopy of high rotational states in H_2 investigated by Doppler-free two-photon laser spectroscopy in the EF^1Σ_g^+ - X^1Σ_g^+ system
G. D. Dickenson, E. J. Salumbides, M. Niu +3
Recently a high precision spectroscopic investigation of the EF^1Σ_g^+ - X^1Σ_g^+ system of molecular hydrogen was reported yielding information on QED and relativistic effects in…
The CO A-X System for Constraining Cosmological Drift of the Proton-Electron Mass Ratio
E. J. Salumbides, M. L. Niu, J. Bagdonaite +4
The band system of carbon monoxide, which has been detected in six highly redshifted galaxies (), is identified as a novel probe method t…