[1] LI C Y, QU L, LIU X L. Application of laser cleaning technology in cultural relics[J]. China Cultural Heritage Scientific Research, 52-60(2021).

[2] MAIMAN T H. Stimulated optical radiation in ruby[J]. Nature, 187, 493-494(1960).

[3] PAPLIAKA Z E, PHILIPPIDIS A, SIOZOS P et al. A multi-technique approach, based on mobile/portable laser instruments, for the in situ pigment characterization of stone sculptures on the island of crete dating from venetian and ottoman period[J]. Heritage Science, 4, 15(2016).

[4] [4] POULI P. Laser cleaning on stonewk: principles, case studies, future prospects[M]GHERARDI F, MARAVELAKI P N. Conserving Stone Heritage: Traditional Innovative Materials Techniques. Cham: Springer, 2022: 75100.

[5] WEEKS C. The ‘Portail de la Mere Dieu’ of Amiens cathedral: its polychromy and conservation[J]. Studies in Conservation, 43, 101-108(1998).

[6] SIANO S, MARGHERI F, PINI R et al. Cleaning processes of encrusted marbles by Nd: YAG lasers operating in free-running and Q-switching regimes[J]. Applied Optics, 36, 7073-7079(1997).

[7] OSTICIOLI I, MASCALCHI M, PINNA D et al. Removal of Verrucaria nigrescens from Carrara marble artefacts using Nd: YAG lasers: comparison among different pulse durations and wavelengths[J]. Applied Physics A, 118, 1517-1526(2015).

[8] ANDREOTTI A, COLOMBINI M P, DE CRUZ A. Er: YAG laser cleaning of a marble Roman urn[J]. Journal of the Institute of Conservation, 43, 12-24(2020).

[9] GRAMMATIKAKIS G, DEMADIS K D, MELESSANAKI K et al. Laser-assisted removal of dark cement crusts from mineral gypsum (selenite) architectural elements of peripheral monuments at Knossos[J]. Studies in Conservation, 60, S3-S11(2015).

[10] PRICE C A. Stone decay and preservation[J]. Chemistry in Britain, 11, 350-353(1975).

[11] LAZZARINI L, ASMUS J F. The application of laser radiation to the cleaning of statuary[J]. International Institute for Conservation of Historic and Artistic Works, 13, 39-49(1973).

[12] ASMUS J F, MURPHY C G, MUNK W H. Studies on the interaction of laser radiation with art artifacts[J]. Proceedings of SPIE, 41, 19-30(1973).

[13] LAZZARINI L, MARCHESINI L, ASMUS J F. Lasers for the cleaning of statuary: initial results and potentialities[J]. Journal of Vacuum Science & Technology, 10, 1039-1043(1973).

[14] ZANINI A, TRAFELI V, BARTOLI L. The laser as a tool for the cleaning of cultural heritage[J]. IOP Conference Series: Materials Science and Engineering, 364, 012078(2018).

[15] PEREIRA-PARDO L, KORENBERG C. The use of erbium lasers for the conservation of cultural heritage. A review[J]. Journal of Cultural Heritage, 31, 236-247(2018).

[16] POULI P, OUJJA M, CASTILLEJO M. Practical issues in laser cleaning of stone and painted artefacts: optimisation procedures and side effects[J]. Applied Physics A, 106, 447-464(2012).

[17] TAM A C, LEUNG W P, ZAPKA W et al. Laser-cleaning techniques for removal of surface particulates[J]. Journal of Applied Physics, 71, 3515-3523(1992).

[18] SIANO S, PINI R. Analysis of blast waves induced by Q-switched Nd: YAG laser photodisruption of absorbing targets[J]. Optics Communications, 135, 279-284(1997).

[19] SIANO S, SALIMBENI R, PINI R et al. Laser cleaning methodology for the preservation of the Porta del Paradiso by Lorenzo Ghiberti[J]. Journal of Cultural Heritage, 4, 140-146(2003).

[20] POTGIETER-VERMAAK S S, GODOI R H M, VAN GRIEKEN R et al. Micro-structural characterization of black crust and laser cleaning of building stones by micro-Raman and SEM techniques[J]. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 61, 2460-2467(2005).

[21] GIAKOUMAKI A, PHILIPPIDIS A, SIOZOS P et al. Development of a methodology for the characterisation and assessment of biodeteriogens on archaeological surfaces by use of a portable LED-induced fluorescence instrument[J]. Heritage Science, 10, 204(2022).

[22] TSEREVELAKIS G J, POULI P, ZACHARAKIS G. Listening to laser light interactions with objects of art: a novel photoacoustic approach for diagnosis and monitoring of laser cleaning interventions[J]. Heritage Science, 8, 98(2020).

[23] LI Y, ZHANG G X, CAI Z Q. Atmospheric pressure glow discharge combined with cylindrical confinement enhanced laser-induced breakdown spectroscopy for determination of rare earth in soil[J]. Chinese Journal of Analytical Chemistry, 50, 1384-1390(2022).

[24] POULI P, FOTAKIS C, HERMOSIN B et al. The laser-induced discoloration of stonework; A comparative study on its origins and remedies[J]. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 71, 932-945(2008).

[25] [25] POULI P, FRANTZIKINAKI K, PAPAKONSTANTINOU E, et al. Pollution encrustation removal by means of combined ultraviolet infrared laser radiation: the application of this innovative methodology on the surface of the Parthenon West Frieze[C]. Proceedings of Lasers in the Conservation of Artwks, Springer, 2005: 333340.

[26] TSEREVELAKIS G J, POZO-ANTONIO J S, SIOZOS P et al. On-line photoacoustic monitoring of laser cleaning on stone: evaluation of cleaning effectiveness and detection of potential damage to the substrate[J]. Journal of Cultural Heritage, 35, 108-115(2019).

[27] PAPANIKOLAOU A, TSEREVELAKIS G J, MELESSANAKI K et al. Development of a hybrid photoacoustic and optical monitoring system for the study of laser ablation processes upon the removal of encrustation from stonework[J]. Opto-Electronic Advances, 3, 190037(2020).

[28] QI Y, YE Y Y, WANG H J. Mechanisms of laser cleaning of contamination on surface of stonework[J]. Chinese Journal of Lasers, 42, 0603001(2015).

[29] [29] QI Y. Study of mechanisms of laser cleaning of sstone surface contaminants in Yungang grottoes its applications[D]. Wuhan: China University of Geosciences, 2015. (in Chinese).

[30] ZHANG B J, REN Y L, ZHANG X Y. Laser technology and cleaning of stone materials[J]. Stone, 10, 11-13(2001).

[31] QI Y, ZHOU W Q, ZHOU P. Laser cleaning technology for stone cultural relics[J]. Jianghan Archaeology, 1, 112-117(2015).

[32] QI Y, ZHOU W Q, CHEN J. Laser cleaning of contaminants on the surface of Yungang Grottoes[J]. Safety and Environmental Engineering, 22, 32-38(2015).

[33] YE Y Y, QI Y, QIN L. Laser cleaning of contaminants on the surface of stone relics[J]. Chinese Journal of Lasers, 40, 0903005(2013).

[34] ZHANG B J, TIE J H. The current situation and development trend of surface cleaning technology for large stone cultural relics[J]. Stone, 11, 19-22(2007).

[35] LIU J, ZHANG B J. Lichen damages to stone resources and laser removing technology[J]. China Building Materials, 6, 74-76(2002).

[36] [36] GRACIA M, GAVIÑO M, VERGÈSBELMIN V, et al. Mössbauer XRD study of the effect of Nd: YAG1064 nm laser irradiation on hematite present in model samples[C]. Proceedings of Lasers in the Conservation of Artwks, Springer, 2005: 341346.

[37] DE OLIVEIRA C, VERGÈS-BELMIN V, LAFAIT J et al. Contribution of goethite to laser-induced stone yellowing[J]. Applied Physics A, 122, 467(2016).

[38] CHENG J J, CAO Z, YANG C R. Quantitative analysis with a portable remote laser-induced breakdown spectroscopy System[J]. Chinese Journal of Applied Chemistry, 39, 1147-1152(2022).

[39] BARTOLI L, POULI P, FOTAKIS C et al. Characterization of stone cleaning by Nd: YAG lasers with different pulse duration[J]. Laser Chemistry, 2006, 081750(2006).

[40] CHEN B H, WU Q Y, TANG Y H. Design of an optical system for generating ring-shaped laser beam[J]. Chinese Optics, 16, 1365-1375(2023).

[41] POULI P, PAPAKONSTANTINOU E, FRANTZIKINAKI K et al. The two-wavelength laser cleaning methodology; Theoretical background and examples from its application on CH objects and monuments with emphasis to the Athens acropolis sculptures[J]. Heritage Science, 4, 9(2016).

[42] ASMUS J F, SERACINI M, ZETLER M J. Surface morphology of laser-cleaned stone[J]. Lithoclastia, 2, 23-46(1976).

[43] BEADMAN K, SCARROW J. Laser cleaning Lincoln cathedral’s Romanesque frieze[J]. Journal of Architectural Conservation, 4, 39-53(1998).

[44] ARMANI E, CALCAGNO G, MENICHELLI C et al. The church of the Maddalena in Venice: the use of laser in the cleaning of the façade[J]. Journal of Cultural Heritage, 1, S99-S104(2000).

[45] CALCAGNO G, PUMMER E, KOLLER M. St. Stephen’s church in Vienna: criteria for Nd: YAG laser cleaning on an architectural scale[J]. Journal of Cultural Heritage, 1, S111-S117(2000).

[46] [46] SIANO S, GIUSTI A, PINNA D, et al. The conservation intervention on the Pta della Mla[C]. Proceedings of Lasers in the Conservation of Artwks, Springer, 2005: 171178.

[47] [47] PAPANIKOLAOU A, SIOZOS P, PHILIPPIDIS A, et al. Towards the understing of the two wavelength laser cleaning in avoiding yellowing on stonewk: a microRaman LIBS study[C]. Lasers in the Conservation of Artwks XI, NCU Press, 2017: 95104.