Position: Professor of Physics

Changjiang Scholar.

Organization: State Key Lab of Quantum Optics and Quantum Optics Devices

Institute of Laser Spectroscopy, Shanxi University

Taiyuan, 030006, P. R. China

Fax: +86-351-711-3863

Phone: +86-351-701-1682 (Lab.)

E-mail: xlt@sxu.edu.cn

Field of Study: Laser spectroscopy; Single-molecule spectroscopy and dynamics; Excitons dynamics of quantum dots; Optical properties of two-dimensional materials; Quantum key distribution

Employment:

*2001. 11-2002.10 Visiting scholar in Labs. of SATIE and LPQM of ENS de CACHAN, France. Research on single molecular photon source and quantum cryptography.

*2005.01-2005. 4 Visiting scholar in Prof. P. Pill’s group of Aimé Cotton Lab, CNRS, Orsay, France. Research on molecular spectroscopy.

*2008.04-2008.10 Visiting professor in Prof. M. Orrit’s group of Single molecule optics, Leiden University, Netherlands. Research on single molecule spectroscopy.

*2010.04-2010.06 Invited Professor in ENS de CACHAN.

*2004.10-present Professor of Physics, State Key Lab of Quantum Optics and Quantum Optics Devices, College of Physics and Electronic Engineering, Shanxi University.

*2013.1-present Changjiang Scholar Professor.

Degrees obtained:

Doctor of Science (2001)

Master of Science (1997)

Bachelor of Science (1989)

Selected publications:

1.“In Situ Manipulation of Fluorescence Resonance Energy Transfer between Quantum Dots and Monolayer Graphene Oxide by Laser Irradiation”, Nanoscale, 2018, DOI: 10.1039/C8NR07858K.

2.“Excitons and Biexciton Dynamics in Single CsPbBr3 Perovskite Quantum Dots”, The Journal of Physical Chemistry Letters 9, 6934−6940 (2018)

3.“Linear dipole behavior of single quantum dots encased in metal oxide semiconductor nanoparticles films”, Frontiers of Physics 14(2), 23605(2019)

4.“Observation of Singlet Oxygen with Single-Molecule Photosensitization by Time-Dependent Photon Statistics”, The Journal of Physical Chemistry Letters 9, 5207-5212 (2018)

5.“Robust micropatterns on graphene oxide films based on the modification of fluorescence lifetime for multimode optical recording”, Carbon 142, 224-229(2019)

6.“Performance of single-photons communication using the multi-channel frequency coding scheme”, Optics Express 26, 20835-20847 (2018)

7.“Suppressing the photobleaching and photoluminescence intermittency of single near-infrared CdSeTe/ZnS quantum dots with p -phenylenediamine”, Optics Express 26, 11889(2018)

8.“Fast recognition of single quantum dots from high multi-exciton emission and clustering effects”, Optics Express 26, 4674(2018)

9.“Laser-driven propulsion of multilayer graphene oxide flakes”, Journal of Materials Chemistry C 6, 2329(2018)

10.“Detection of ultra-low oxygen concentration based on the fluorescence blinking dynamics of single molecules”, Applied Physics Letters 112 (5), 053101(2018)

11.“Versatile and scalable micropatterns on graphene oxide films based on laser induced fluorescence quenching effect”, Optics Express 25(25), 31025(2017)

12.“Solar light assisted green synthesis of photoreduced graphene oxide for the high efficiency adsorption of anionic dyes”, RSC Advances 7, 53362(2017)

13.“Enhanced Biexciton Emission from Single Quantum Dots Encased in N-type Semiconductor Nanoparticles”, Applied Physics Letters 111, 141125 (2017)

14.“Impedance self-matching ultra-narrow linewidth fiber resonator by use of a tunable π-phase-shifted FBG”, Scientific Reports 7, 1895 (2017)

15.“Modification of single-molecule fluorescence using external fields”, Frontiers of Physics 12(5),128101(2017)

16.“Stabilizing the 1550 nm laser to π-phase-shifted fiber Bragg grating at single-photon level”, Laser Physics 26,105104(2016)

17.“Suppressing the Fluorescence Blinking of Single Quantum Dots Encased in N-type Semiconductor Nanoparticles”, Scientific Reports 6, 32662(2016)

18.“Two fluorescence lifetime components reveal the photoreduction dynamics of monolayer graphene oxide”, Carbon 109, 264-268(2016)

19.“Experimental quantum secure direct communication with single photons”, Light: Science & Applications5, e16144 (2016)

20.“Atomic-Layered MoS2 as a Tunable Optical Platform”, Advanced Optical Materials 4, 1429–1456 (2016)

21.“An electric field induced reversible single-molecule fluorescence switch”, Chem. Comm., Vol. 51, 7368(2015).

22.“Observing and tuning the density distribution of localized states of monolayer graphene oxide by using external electric field”, Applied Physics Letters, 2015, Vol. 106, 131103.

23.“High visibility fluorescence imaging for nanoparticles based on acousto-optic time delay effect”, Sensors and Actuators B, 2015, Vol. 208, 464.

24.“Experimental observation of the lowest levels in the photoassociation spectroscopy of the 0-g purely-long-range state of Cs2”, Phys. Rev. A, 2013, Vol. 87, 030503(R).

25.“Single molecules probe the polarization dynamics of poly(methyl methacrylate) in external electric field”, Applied Physics Letters, 2012, Vol. 100, 203118. 

26.“Electric Field Induced Fluorescence Modulation of Single Molecules in PMMA Based on Electron Transfer”, International Journal of Molecular Sciences, 2012, Vol. 13, 11130.

27.“Detection efficiency enhancement of single-photon detector at 1.55-mm by using of single photons lock-in and optimal threshold”, Optics & Laser Technology 2012, Vol. 44, 1773.

28.“Direct measurement of laser-induced frequency shift rate of ultracold cesium molecules by analyzing losses of trapped atoms”, Applied Physics Letters, 2012, Vol. 101, 131114.

29.“Photoassociative formation of ultracold RbCs molecules in the (2) 3Π state”, Phys. Rev. A, 2012, Vol. 85, 013401.

30.“Single-molecule interfacial electron transfer dynamics manipulated by an external electric current”, Phys. Chem. Chem. Phys., 2011, Vol. 13, 13815.

31.“Single molecules reorientation reveals the dynamics of polymer glasses surface”, Phys. Chem. Chem. Phys., 2010, Vol. 12, 2308.

32.“Micron-Sized Structure in a Thin Glycerol Film Revealed by Fluorescent Probes”, J. Phys. Chem. B, 2009, Vol. 113, 15724.

33.“Arbitrarily copropagating superluminal and slow light by controllable one-photon detuning in trapped cold atoms”, Optics Express, 2008, Vol. 16, 4747.

34.“The double dark resonance in a cold gas of Cs atoms and molecules”, Optics Express, 2008, Vol. 16, No. 20, 15870.

35.“Photon Statistical Measurement of Afterpulse Probability”, International Journal of Modern Physics B, 2008, Vol. 22, No. 12, 1941.

36.“Fast Recognize Single Molecules Based on Single Event Photon Statistics”, Phys. Rev. A, 2007, Vol. 76, 063820.

37.“Absolute frequency stabilization of a diode laser to cesium atom-molecular hyperfine transitions via modulating molecules”, Applied Physics Letters, 2007, Vol. 91, 161101.

38.“Tunable and frequency-stabilized diode laser using temperature-dependent energy pooling fluorescence.” Applied Physics Letters, 2006, Vol. 88, 231104.

39.“Signal-to-noise ratio improvement of photon-counting using wavelength modulation spectroscopy”, Applied Physics Letters, 2006, Vol. 89, 061102.

40.“Single event photon statistics characterization of a single photon source in an imperfect detection system”, Journal of Luminescence, 2007, Vol. 124, 286.

41.“Laser offset-frequency locking against energy pooling fluorescence in thermal cesium vapor”, Measurement Science and Technology, (Rapid Communication), 2006, Vol. 17, L1.

42.“Intensity noise measurement of strongly attenuated laser diode pulses in the time domain”, Eur. Phys. J. Appl. Phys. 2006, Vol. 35, 117.

43.“Frequency stabilization of an external-cavity diode laser with a thin Cs vapour cell”, J. Phys D: Appl. Phys. 2004, Vol. 37, 1316.

44.“Photon statistics measurement by use of single photon detection”, Chinese Science Bullitin, 2004, Vol. 49, 875.

45.“Effect of background noise on the photon statistics of triggered single molecules”, Chinese Physics Letter, 2004, Vol. 21, 489.

46.“Direct measurement of the photo statistics of a triggered single photon source”, Physical Review Letters, 2002, Vol. 89, 093601.

47.“Low-frequency wavelength modulation spectroscopy with the D2 transition of atomic Cs by use of an external-cavity diode laser”, Applied Optics, 2000, Vol. 39, 1049.

48.“Diffused band radiation of molecular potassium generated by energy-pooling effect”, Applied Physics B, 1999, Vol. 68, 727.

Edited Book Chapter:

1.“Time-gated Single Photon Counting Lock-in Detection at 1550 nm Wavelength”, In: F. J. Duarte, Ed., LASER PULSE PHENOMENA AND APPLICATIONS, InTech, Janeza Trdine 9, 51000 Rijeka, Croatia, 2010, pp. 191-206.

2.“Single-Molecule Recognition and Dynamics with Pulsed Laser Excitation”, In: Igor Peshko, Ed., LASER PULSES –THEORY, TECHNOLOGY, AND APPLICATIONS, InTech, Janeza Trdine 9, 51000 Rijeka, Croatia, Oct. 2012, pp. 477-500.