Publications

2020

• Two-photon excitation of two Rydberg levels of O₂ above 95 130 cm^–1: Rotational-state dependence of predissociation linewidths
  Kono, M., He, Y., Lewis, B. R., Gibson, S. T., Baldwin, K. G. H. & Orr, B. J., 1 Mar 2020, In: Journal of Quantitative Spectroscopy and Radiative Transfer. 244, p. 1-10 10 p., 106841.

2018

• Collision-induced rovibrational energy transfer in small polyatomic molecules: the role of intramolecular perturbations
  Orr, B. J., 2018, In: Molecular Physics. 116, 23-24, p. 3666-3700 35 p.

• Long-distance telecom-fibre transfer of a radio-frequency reference for radio astronomy
  He, Y., Baldwin, K. G. H., Orr, B. J., Warrington, R. B., Wouters, M. J., Luiten, A. N., Mirtschin, P., Tzioumis, T., Phillips, C., Stevens, J., Lennon, B., Munting, S., Aben, G., Newlands, T. & Rayner, T., 20 Feb 2018, In: Optica. 5, 2, p. 138-146 9 p. 43 Citations (Scopus)

• Precision two-photon-excitation spectroscopy of atomic and molecular Rydberg states
  Baldwin, K. G. H., Kono, M., Orr, B. J. & He, Y., 1 Jan 2018, Fourier Transform Spectroscopy 2018. Washington, D. C.: OSA - The Optical Society, 2 p. JT2A.21

2016

• Fiber-optical coupling in agricultural and environmental sensing, based on open-path cavity ringdown spectroscopy
  Orr, B. J., He, Y., Hill, J. & Jamie, I. M., 29 Aug 2016, Photonics and Fiber Technology 2016 (ACOFT, BGPP, NP): proceedings. OSA - The Optical Society, p. 1-2 2 p. AT3C.5

• Long-distance fiber-optical transfer of a radio-frequency control signal for radio-astronomy and sensing applications
  Baldwin, K. G. H., He, Y., Orr, B. J., Warrington, R. B., Luiten, A. N., Mirtschin, P., Tzioumis, T., Phillips, C., Aben, G., Newlands, T. & Rayner, T., 29 Aug 2016, Photonics and Fiber Technology 2016 (ACOFT, BGPP, NP): proceedings. OSA - The Optical Society, p. 1-2 2 p. AT5C.2

• Spectroscopic applications of tunable optical parametric oscillators
  Orr, B. J., Haub, J. G., He, Y. & White, R. T., 22 Feb 2016, Tunable laser applications. Duarte, F. J. (ed.). 3rd ed. Boca Raton, FL: CRC Press, Taylor & Francis Group, p. 17-142 126 p. (Optical science and engineering; vol. 137).

• Sub-Doppler two-photon-excitation Rydberg spectroscopy of atomic xenon: mass-selective studies of isotopic and hyperfine structure
  Kono, M., He, Y., Baldwin, K. G. H. & Orr, B. J., 28 Mar 2016, In: Journal of Physics B: Atomic, Molecular and Optical Physics. 49, 6, p. 1-15 15 p., 065002.

View Macquarie University’s fully detailed record of publications of the MOPL Research Group

Major publications of the MOPL research group, 2000 - 2020

Chapters in books, review articles, reports etc.

• B. J. Orr, "Collision-induced rovibrational energy transfer in small polyatomic molecules: the role of intramolecular perturbations, " Molecular Physics 116, 3666–3700 (2018).
• B. J. Orr, J. G. Haub, Y. He, and R. T. White, "Spectroscopic Applications of Tunable Optical Parametric Oscillators," in Tunable Laser Applications, 3rd edition, edited by F. J. Duarte (CRC Press, New York, 2016);      ISBN 9781498788144), Ch. 2, pp. 17–142 (including 666 references).
• D. Chen, R. Hegarty, P. Vercoe, K. Kalantar-zedah, F. Phillips, B. Orr, E .Charmley, and J. Hill, "Measuring and managing methane emissions from livestock: from laboratory to landscape, " Final Report of the Sustainable Agriculture Flagship Livestock Methane Research Cluster (CSIRO, 2015), 71 pages.
• B. J. Orr and Y. He, "Cavity-based absorption spectroscopy techniques," in Laser Spectroscopy for Sensing: Fundamentals, Techniques and Applications, ed. M. Baudelet (Woodhead Publishing, Cambridge, UK, 2014; ISBN 978-0-85709-273-1), Woodhead Publishing Series in Electronic and Optical Materials, Number 43, Part II, Laser Spectroscopy Techniques, Ch. 6, pp. 167 – 207.
• B. J. Orr and Y. He, "Rapidly swept continuous-wave cavity-ringdown spectroscopy," Chemical Physics Letters 512, 1 - 20 (2011).
• B. J. Orr and Y. He, "Tunable nonlinear-optical devices for laser-spectroscopic sensing," in Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IX, ed. P. E. Powers, Proceedings of SPIE 7582, 75820J/1 - 75820J/14 (2010).
• B. J. Orr, Y. He and R. T. White, "Spectroscopic Applications of Tunable Optical Parametric Oscillators," in Tunable Laser Applications, 2nd edition, edited by F. J. Duarte (CRC Press, New York, 2009; ISBN-13: 978-1-4200-6009-6), Chapter 2, pp. 15 - 95.
• B. J. Orr, "Spectroscopy and energetics of the acetylene molecule: dynamical complexity alongside structural simplicity," International Reviews in Physical Chemistry, 25, 655 – 718 (2006).
• B. J. Orr, "Optics, lasers and spectroscopy: resonance at work," AOS News (edited by M. Hamilton, Australian Optical Society, 20 (1), pp. 16 – 23 (March, 2006); based on the 2005 AOS Medal Lecture.
• B. J. Orr, D. C. O'Shea, and S. S. Ballard, "Visible and ultraviolet spectroscopy," in Encyclopedia of Physics, R. G. Lerner and G. L. Trigg, eds. (WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim, Germany, 2005; ISBN 3-527-40554-2), vol. 2, pp. 2860 – 2865.
• B. J. Orr, "Optical parametric devices: overview", in Encyclopedia of Modern Optics (edited by R. D. Guenther, D. G. Steel and L. Bayvel; ElsevierPhysics, Oxford, UK, 2004; ISBN 0-12-227600-0), "Nonlinear optics – applications" section, pp. 43 – 51.
• Y. He, P. Wang, R. T. White and B. J. Orr, "Spectroscopic applications of optical parametric oscillators," Optics and Photonics News, 13 (5), pp. 56 – 60 & 76 (May, 2002).
• B. J. Orr, "IR lidar applications in air monitoring", in Encyclopedia of Analytical Chemistry: Applications, Theory and Instrumentation (edited by R. A. Myers; John Wiley, Chichester, UK, 2000; ISBN 0-471-97670-9), Volume 3 ("Applications of Instrumental Methods"), pp. 2007 – 2032.

Papers in refereed scientific journals

• M. Kono, Y. He, B. R. Lewis, S. T. Gibson, K. G. H. Baldwin, and B. J. Orr, "Two-photon excitation of two Rydberg levels of O2 above 95 130 cm–1," Journal of Quantitative Spectroscopy and Radiative Transfer 244, 106841/1 – 10684/10 (2020).
• Y. He, B. J. Orr, K. G. H. Baldwin, R. B. Warrington, M. J. Wouters, A. N. Luiten, P. Mirtschin, T. Tzioumis, C. Phillips, J. Stevens, B. Lennon, S. Munting, G. Aben, T. Newlands, and T. Rayner, "Long-distance telecom-fiber transfer of a radio-frequency reference for radio astronomy," Optica 5, 138 – 146 (2018).
• M. Kono, Y. He, K. G. H. Baldwin, and B. J. Orr, “Sub-Doppler two-photon-excitation Rydberg spectroscopy of atomic xenon: mass-selective studies of isotopic and hyperfine structure,” J. Physics B: Atomic Molecular & Optical Physics 49, 065002/1 – 065002/15 (2016).
• Y. He, C. Jin, R. Kan, J. Liu, W. Liu, J. Hill, I. M. Jamie, and B. J. Orr, "Remote open-path cavity-ringdown spectroscopic sensing of trace gases in air, based on distributed passive sensors linked by km-long optical fibres," Optics Express 22, 13170 – 13189 (2014).
• M. Kono, Y. He, K. G. H. Baldwin, and B. J. Orr, "Sub-Doppler two-photon spectroscopy of 33 Rydberg levels in atomic xenon excited at 205-213 nm: diverse isotopic and hyperfine structure," J. Physics B: Atomic Molecular & Optical Physics 46, 035401/1 – 035401/16 (2013).
• Y. He, B. J. Orr, K. G. H. Baldwin, M. J. Wouters, A. Luiten, G. Aben, and R .B. Warrington, "Stable radio-frequency transfer over optical fibre by phase-conjugate frequency mixing," Optics Express 21, 18754 – 18764 (2013).
• S. Schediwy, D. Gozzard, K. G. H. Baldwin, B. J. Orr, R. B. Warrington, G. Aben, and A. Luiten, "High-precision optical-frequency dissemination on branching optical-fibre networks," Optics Letters 38, 2893 – 2896 (2013).
• Y. Tang, W. Liu, R. Kan, J. Liu, Y. He, Y. Zhang, Z. Xu, J. Ruan, and H. Geng, "Measurements of NO and CO in Shanghai urban atmosphere by using quantum cascade lasers," Optics Express 19, 20224 – 20232 (2011).
• Y. He, M. Kono, R. T. White, M. J. Sellars, K. G. H. Baldwin, and B. J. Orr, "Coherent heterodyne-assisted pulsed spectroscopy: Sub-Doppler two-photon spectra of krypton, characterizing a tunable nonlinear-optical ultraviolet light source," Applied Physics B 99, 609 – 612 (2010).
• Y. He, R. Kan, F. V. Englich, W. Liu, and B. J. Orr, "Simultaneous multi-laser, multi-species trace-level sensing of gas mixtures by rapidly swept continuous-wave cavity-ringdown spectroscopy," Optics Express 18, 20059 – 20071 (2010).
• F. V. Englich, Y. He, and B. J. Orr, "Continuous-wave cavity-ringdown detection of stimulated Raman gain spectra," Applied Physics B 94, 1 – 27 (2009).
• Y. He and B. J. Orr,"Self-adaptive, narrowband tuning of a pulsed optical parametric oscillator and a continuous-wave diode laser via phase-conjugate photorefractive cavity reflectors: verification by high-resolution spectroscopy," Applied Physics B 96, 545–560 (2009).
• Y. He and B. J. Orr,"Robust tunable single-frequency operation of a diode laser by a self-pumped phase-conjugate reflector and a high-finesse filter," Optics Letters 33, 2368–2370 (2008).
• M. A. Payne, A. P. Milce, M. J. Frost, and B. J. Orr, "Rovibrational energy transfer in the 4ν_CH manifold of acetylene viewed by IR-UV double resonance spectroscopy. 5. Detailed kinetic model," J. Phys. Chem. A, 111, 12839 – 12853 (2007).
• R. T. White, Y. He, B. J. Orr, M. Kono, and K. G. H. Baldwin, "Control of frequency chirp in nanosecond-pulsed laser spectroscopy. 3. Spectrotemporal dynamics of an injection-seeded optical parametric oscillator," J. Opt. Soc. Am. B, 24, 2601 – 2609 (2007).
• Y. He and B. J. Orr, "Detection of trace gases by rapidly-swept continuous-wave cavity ringdown spectroscopy: pushing the limits of sensitivity," Appl. Phys. B 85, 355 – 364 (2006).
• F. V. Englich, Y. He, and B. J. Orr, "Continuous-wave stimulated Raman gain spectroscopy with cavity ringdown detection," Appl. Phys. B 83, 1 – 5 (2006).
• M. Kono, K. G. H. Baldwin, Y. He, R. T. White, and B. J. Orr, "CHAPS: a new precision laser-spectroscopic technique," J. Opt. Soc. Am. B 23, 1181 – 1189 (2006).
• M. A. Payne, A. P. Milce, M. J. Frost, and B. J. Orr, "Rovibrational energy transfer in the 4ν_CH manifold of acetylene viewed by IR-UV double resonance spectroscopy. 4. Collision-induced quasi-continuous background effects," J. Phys. Chem. A 110, 3307 – 3319 (2006).
• Y. He and B. J. Orr, "Continuous-wave cavity ringdown absorption spectroscopy with a swept-frequency laser: rapid spectral sensing of gas-phase molecules," Appl. Opt. 44, 6752 – 6761 (2005).
• M. Kono, K. G. H. Baldwin, Y. He, R. T. White, and B. J. Orr, "Heterodyne-assisted pulsed spectroscopy with a nearly Fourier-transform limited, injection-seeded optical parametric oscillator," Optics Lett. 30, 3413 – 3415 (2005).
• M. A. Payne, A. P. Milce, M. J. Frost, and B. J. Orr, "Rovibrational energy transfer in the 4ν_CH manifold of acetylene viewed by IR-UV double resonance spectroscopy. 2. Perturbed states with J = 17 and 18," J. Phys. Chem. B 109, 8332 – 8343 (2005).
• M. A. Payne, A. P. Milce, M. J. Frost, and B. J. Orr, "Rovibrational energy transfer in the 4ν_CH manifold of acetylene, viewed by IR-UV double resonance spectroscopy. 3. State-to-state J-resolved kinetics," Zeitschrift für Physikalische Chemie 219, 601 – 633 (2005).
• Y. He and B. J. Orr, “Narrowband tuning of an injection-seeded pulsed optical parametric oscillator based on a self-adaptive, phase-conjugate cavity mirror”, Optics Lett., 29, 2169 – 2171 (2004).
• Y. He and B. J. Orr, "Rapid measurement of cavity ringdown absorption spectra with a swept-frequency laser," Appl. Phys. B 79, 941 – 945 (2004).
• R. T. White, Y. He, B. J. Orr, M. Kono and K. G. H. Baldwin, "Control of frequency chirp in nanosecond-pulsed laser spectroscopy. 1. Optical-heterodyne chirp analysis techniques," J. Opt. Soc. Am. B 21, 1577 – 1585 (2004).
• R. T. White, Y. He, B. J. Orr, M. Kono and K. G. H. Baldwin, "Control of frequency chirp in nanosecond-pulsed laser spectroscopy. 2. A long-pulse optical parametric oscillator for narrow optical bandwidth," J. Opt. Soc. Am. B 21, 1586 – 1594 (2004).
• R. T. White, Y. He, B. J. Orr, M. Kono and K. G. H. Baldwin, "Transition from single-mode to multimode operation of an injection-seeded pulsed optical parametric oscillator," Optics Express 12, 5655 – 5660 (2004).
• M. A. Payne, A. P. Milce, M. J. Frost, and B. J. Orr, "Rovibrational energy transfer in the 4ν_CH manifold of acetylene, viewed by IR-UV double resonance spectroscopy. 1. Foundation studies at low J," J. Phys. Chem. A 107, 10759 – 10770 (2003).
• R. A. Shorten, Y. He and B. J. Orr, "Swept-cavity ringdown absorption spectroscopy: put your laser light in and shake it all about," Aust. J. Chem. 56, 219 – 231 (2003).
• R. T. White, Y. He, B. J. Orr, M. Kono and K. G. H. Baldwin, "Pulsed injection-seeded optical parametric oscillator with low frequency chirp for high-resolution spectroscopy," Optics Lett. 28, 1248 – 1250 (2003).
• Y. He and B. J. Orr, "Rapid-swept, continuous-wave cavity ringdown spectroscopy with optical heterodyne detection: single- and multi-wavelength sensing of gases," Appl. Phys. B 75, 267 – 280 (2002).
• Y. He and B. J. Orr, "Optical heterodyne signal generation and detection in cavity ringdown spectroscopy based on a rapidly swept cavity," Chem. Phys. Lett. 335, 215 – 220 (2001).
• Y. He and B. J. Orr, "Tunable single-mode operation of a pulsed optical parametric oscillator pumped by a multi-mode laser," Appl. Opt. 40, 4836 – 4848 (2001).
• Y. He and B. J. Orr, " Cavity ringdown spectroscopy: new approaches and outcomes," J. Chinese Chem. Soc. 48, 591 – 601 (2001).
• A. P. Milce and B. J. Orr, "The ν_CC + 3ν_CH rovibrational manifold of acetylene. II. Intramolecular perturbations and symmetry-breaking processes," J. Chem. Phys. 112, 9319 – 9334 (2000).
• M. A. Payne, A. P. Milce, M. J. Frost and B. J. Orr, "Symmetry-breaking collisional energy transfer in the 4ν_CH rovibrational manifold of acetylene: spectroscopic evidence of a quasi-continuum of background states," Chem. Phys. Lett., 324, 48 – 56 (2000).
• Y. He and B. J. Orr, "Ringdown and cavity-enhanced absorption spectroscopy using a continuous-wave tunable diode laser and a rapidly swept optical cavity," Chem. Phys. Lett. 319, 131 – 137 (2000).
• G. W. Baxter, M. A. Payne, B. D. W. Austin, C. A. Halloway, J. G. Haub, Y. He, A. P. Milce, J. W. Nibler and B. J. Orr, "Spectroscopic diagnostics of chemical processes: applications of optical parametric oscillators," Appl. Phys. B 71, 651 – 663 (2000).

Patent applications

• Y. He and B. J. Orr, "Optical Heterodyne Detection in Optical Cavity Ringdown Spectroscopy," Australian Provisional Patent Applications PQ8724 (12 July 2000) & PQ9785 (30 August 2000); International Patent Cooperation Treaty (PCT) Patent Application (PCT/AU01/00834, filed by Macquarie University 12 July 2001; WO 02/04903 A1, published 17 January 2002); national-phase patent applications covering USA, Europe and Australia were lodged in January 2003; Australian Patent No. 2001272190 sealed 22 April 2005 (expiry date: 12 July 2021); US patent No. 7012696 allowed 7 April 2005, issued on March 14, 2006; the corresponding European patent application has been allowed to lapse.
• B. J. Orr and Y. He, "Method and Apparatus for Generating Narrowband Coherent Light Output from an Optical Parametric Oscillator," Australian Provisional Patent Application no. 2002952830 (lodged 22 November 2002); International (PCT) Patent Application (PCT/AU03/0157, filed 22 November 2003); International Search Report clear 22 January 2004)
• Y. He and B. J. Orr, "An Injection-seeded Self-adaptive Optical Resonant Cavity and a Method of Generating Coherent Light," Australian Provisional Patent Applications 2003906515 and 20041125 (lodged 25 November 2003); International (PCT) Patent Application (Customer ID, 5410101905; CMR, 50154439; filed 25 November 2004).
• B. J. Orr and Y. He, "Cavity Ringdown Spectroscopy with Swept-frequency Laser," Australian Provisional Patent Application no. 2004902516 (lodged for MQ by Spruson & Ferguson 12 May 2004); International (PCT) Patent Application (PCT/AU2005/000683, filed 12 May 2005; WO 2005/108939 A1, published 17 November 2005)