1：Experimental Design and Method Selection:

The study utilized surface plasmon-polariton (SPP) waves supported by a gold grating to initiate AAC. SPP excitation was achieved using laser irradiation at 785 nm, with SERS used for in-situ monitoring.

2：Sample Selection and Data Sources:

Gold and silver gratings were prepared by sputtering metals onto patterned SU-8 films on glass substrates. Samples were functionalized with diazonium compounds (ADT-C≡CH or ADT-N3) and immersed in solutions of 4-azidobenzoic acid or phenylacetylene.

3：List of Experimental Equipment and Materials:

Equipment included a ProRaman-L spectrometer (785 nm), XPS spectrometer (Omicron Nanotechnology ESCAProbeP), AFM microscope (Icon, Brucker), UV-Vis spectrometer (Lambda 25, Perkin-Elmer), atomic adsorption spectrometer (AGILENT 280 FS AA), GC-MS (ISQ TRACE? 1300, Thermo), thermocouples, and hot plate. Materials included acetic acid, diethyl ether, deionized water, methanol, 4-ethynylaniline, p-toluenesulfonic acid monohydrate, 4-azidoaniline hydrochloride, phenylacetylene, SU-8 solution, gold and silver for sputtering, and synthesized diazonium salts.

4：Experimental Procedures and Operational Workflow:

Gratings were prepared by spin-coating SU-8, laser patterning, and metal sputtering. Surface modification involved soaking in diazonium solutions. For AAC, samples were illuminated with a laser in reactant solutions, with SERS measurements taken over time. Control experiments included temperature measurements, use of silver gratings, and analysis for by-products.

5：Data Analysis Methods:

Reaction kinetics were analyzed using first-order kinetic equations from SERS peak intensities. XPS, AFM, UV-Vis, AAS, and GC-MS data were used for characterization and validation.