Lasers in the Preservation of Cultural Heritage: Principles and Applications

Portada
CRC Press, 25 oct 2006 - 336 páginas
With the maturation of laser technology in diagnostic and conservation applications, conservation scientists, archeologists, art historians, researchers, and advanced science-oriented students now have the tools necessary for preserving the future of our past-our cultural heritage. Presenting recent developments in the field, Lasers in the Preservation of Cultural Heritage: Principles and Applications addresses the basic concepts of laser applications and supplies case studies of analytical, structural diagnostic, and laser cleaning applications. The book provides a comprehensive presentation of the fundamental principles and applications of modern laser technology in the analysis of composition, diagnostics of structural integrity, and conservation of artworks and antiquities.

Beginning with an introduction to the basic techniques used in art conservation and archeology, the book describes the fundamental aspects of laser-matter interactions, emphasizing laser diagnostics and laser processing applications. The next few chapters focus on laser-based spectroscopic techniques for the analysis of the composition of materials in art and archaeology, including laser-induced breakdown, Raman, and laser-induced fluorescence spectroscopic techniques. The book proceeds to highlight nondestructive diagnostic techniques, laser processing applications, laser applications for the cleaning of paintings and stone, and methods for the removal of encrustations. It concludes with case studies for the conservation of materials like parchment, paper, metal, ivory, and wood, and includes conservation approaches for modern paintings.

Bridging science with art, Lasers in the Preservation of Cultural Heritage presents a systematic overview of the fundamentals and applications of laser techniques in artwork conservation and archeological science.

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Índice

Introduction
4
13 LASER INTERACTIONS WITH MATERIALS
4
14 TYPES OF LASER APPLICATIONS IN CULTURAL HERITAGE
8
15 BRIEF HISTORY OF LASER USE IN PRESERVING CULTURAL HERITAGE
14
16 STRUCTURE OF THIS BOOK
20
Fundamentals of the Laser Diagnostics and Interactions with Matter
25
222 ELECTRONIC PROPERTIES OF MATERIALS
26
223 EXCITATION PROCESSESFLUORESCENCE
28
534 SPECKLE PATTERN INTERFEROMETRY
165
54 RELATED TECHNIQUES
168
542 LASER DOPPLER VIBROMETRY
170
55 COMPLEMENTARY INTEGRATION LASERACT
172
56 SUMMARY
173
ACKNOWLEDGMENTS
174
REFERENCES
175
Overview of Laser Processing and Restoration Methods
181

224 LIGHT SCATTERING PROCESSES
31
REFLECTOGRAPHY
32
23 DESCRIPTION OF LASERINDUCED PROCESSES
34
231 THERMAL PROCESSES AND EFFECTS
35
2312 Temperature Measurements
36
Implications
37
232 PHOTOMECHANICAL PROCESSES AND EFFECTS
38
2322 Diagnostics and Implications
40
2331 Thermally Activated Reactions
41
2333 Chemical Processes upon Pulsed Laser Irradiation
42
24 DELINEATION OF PROCESSES WITH INCREASING LASER IRRADIANCE
45
REFERENCES
50
LaserInduced Breakdown Spectroscopy LIBS Cultural Heritage Applications
53
32 PHYSICAL PRINCIPLES
55
33 INSTRUMENTATION
56
34 ANALYTICAL PARAMETERS AND METHODOLOGY
60
342 IRRADIATIONDETECTION PARAMETERS
61
343 ANALYZING OBJECTS OF CULTURAL HERITAGE
62
344 QUANTITATIVE ANALYSIS
64
35 EXAMPLES OF LIBS ANALYSIS IN ART AND ARCHAEOLOGY
66
352 POTTERY
73
353 MARBLE STONE GLASS AND GEOLOGICAL SAMPLES
75
354 METALS
77
355 BIOMATERIALS
79
36 LIBS IN COMBINATION WITH OTHER TECHNIQUES
81
361 LIBS AND RAMAN MICROSCOPY
82
363 LIBS AND MASS SPECTROMETRY
84
37 CONCLUDING REMARKS
86
REFERENCES
87
A Raman Spectroscopy in Cultural Heritage
95
42 PHYSICAL PRINCIPLES
99
43 INSTRUMENTATION
102
44 EXAMPLES OF RAMAN ANALYSIS IN ART AND ARCHAEOLOGY
105
441 PIGMENTS
106
442 ORGANIC AND BIOLOGICAL MATERIALS
109
443 POTTERY
110
445 METALS
112
45 RAMAN ANALYSIS IN COMBINATION WITH OTHER TECHNIQUES
113
452 RAMAN MICROSCOPY AND LIBS
114
46 CONCLUDING REMARKS
115
Laser Interferometry for Direct Structural Diagnostics
123
512 INTERFEROMETRY WITH DIFFUSE ARTWORK SURFACES
127
513 SUITABILITY PROVISIONS
129
52 HOLOGRAPHY PRINCIPLES
133
521 OPTICAL APPARATUS FOR HOLOGRAPHIC INTERFEROMETRY
134
522 RECORDING PRINCIPLE
136
53 HOLOGRAPHIC INTERFEROMETRY NOT FOR DIRECT ASSESSMENT OF STRUCTURAL CONDITION OF ARTWORKS
139
531 LOCALIZED FRINGE PATTERNS
140
532 WHOLEBODY FRINGE PATTERNS
141
5322 Preventive Conservation
142
533 CHOICE OF INVESTIGATION PROCEDURE
144
Characteristics Parameters Features
150
Defect Detection and Identification Procedures
153
5333 Preventive Applications
162
62 LASERINDUCED MATERIAL EJECTION
182
63 ABLATION METRICS
184
632 LIMITATIONS AND CAVEATS
185
633 ABLATION ENTHALPY AND EFFICIENCY
187
64 CLEANING METHODOLOGIES
188
642 SELECTIVE MATERIAL REMOVAL
189
643 PARTICLE REMOVAL TECHNIQUES
190
644 LIQUIDASSISTED MATERIAL REMOVAL
192
65 ASSESSMENT OF THE LASERINDUCED PROCESSES AND EFFECTS
193
651 PHOTOEXCITATION PROCESSES
194
6522 Illustrations and Implications
196
6523 Introduction to Explosive Boiling
198
6532 Illustrations and Implications
200
654 CHEMICAL PROCESSES AND EFFECTS
204
6542 Factors Affecting Chemical Effects in the Substrate
205
66 ASSESSMENT OF THE INFLUENCE OF PARAMETERS
206
662 WAVELENGTH DEPENDENCE AND IMPORTANCE OF ABSORPTIVITY
209
663 DEPENDENCE ON NUMBER OF LASER PULSES
212
664 FEMTOSECOND ABLATION
214
67 ABLATION PLUMEPLASMA DYNAMICS
215
POSSIBILITIES AND LIMITATIONS
216
682 EXAMINATION OF EJECTION PROCESS
217
69 EXPERIMENTAL SETUPS
218
REFERENCES
221
Laser Cleaning of Polymerized Substrates Removal of Surface Resin from Paintings
227
73 ABLATION EFFICIENCY STUDIES
229
74 LIGHT TRANSMISSION STUDIES
234
75 CHEMICAL ALTERATION OF SUBSTRATE
238
76 LASER ABLATION OF AGED RESIN LAYERS FROM PAINTINGS
241
77 LASER ABLATION OF PAINT LAYERS FROM COMPOSITE MATERIALS
249
YAG LASER IN THE REMOVAL OF SURFACE LAYERS
252
79 CONCLUSIONS
253
REFERENCES
254
Laser Cleaning of Encrustations
259
82 MAJOR OPERATIVE MECHANISMS AND ASSOCIATED OPTICAL PHENOMENA
261
821 LASERINDUCED YELLOWING EFFECT
267
YAG LASER
272
823 DEPENDENCE OF ABLATION SIDE EFFECTS ON PULSE WIDTH
274
824 OTHER LASER CLEANING METHODS
275
825 DISCOLORATION OF POLYCHROMES
279
TEST CASE STUDIES
280
831 FUNDAMENTAL AND THIRDHARMONIC TEST CASE STUDIES
283
832 TEST CASE STUDY USING SHORTFREERUNNING LASER PULSES
285
84 CONCLUSIONS
287
REFERENCES
288
Laser Cleaning of Other Materials
295
921 CLEANING OF PARCHMENT
296
922 CLEANING OF SOILED PAPER
297
923 REMOVAL OF FUNGI
299
93 METAL
302
94 CONCLUSIONS
310
REFERENCES
311
Index
315
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