HereisabriefintroductionfortheEnglishversionof"TerahertzTechnologyandApplications"byWenQiyeetal.(2017edition):Thisbookprovidesacomprehensiveoverviewofterahertz(THz)technologyanditsdiverseapplications.AuthoredbyWenQiyeandcolleagues,the2017editioncoversfundamentalprinciples,keytechnologies,andcutting-edgedevelopmentsintheTHzfield.ThecontentspansfromTHzwavegenerationanddetectionmethodstopracticalapplicationsinareassuchasimaging,communications,spectroscopy,andsecuritysystems.Writtenforresearchers,engineers,andstudents,thisEnglishversionmakesthevaluabletechnicalknowledgeaccessibletoaninternationalaudience.Thebookservesasbothatheoreticalreferenceandpracticalguideforthoseworkingwithterahertztechnologiesacrossscientificandindustrialdomains.