查看“︁光學場”︁的源代码


'''光學場'''（optical field）是以其偏振、大小、相位、波向量以及頻率來定義的[[電磁場]]<ref>{{cite book |url=https://www.google.co.uk/books/edition/Principles_of_Photonics/lbXDDAAAQBAJ?hl=en&gbpv=1&pg=PA3&printsec=frontcover |page=3 |chapter=Basic Concepts of Optical Fields |title=Principles of Photonics |author=Jia-Ming Liu |year=2016 |isbn=9781107164284 |publisher=Cambridge University Press}}</ref>。光學場的物理特性和光學場和其傳播介質的交互作用有關<ref>{{cite book |url=https://www.google.co.uk/books/edition/Optical_Imaging_and_Spectroscopy/7hV67QWxbXwC?hl=en&gbpv=1&pg=PA103&printsec=frontcover |page=103 |title=Optical Imaging and Spectroscopy |author=David J. Brady |year=2009 |isbn=9780470443729 |publisher=Wiley}}</ref>。在數學上可以將光學場定義為會隨空間<math display="inline">\boldsymbol{r}(x, y, z)</math>和時間<math display="inline">t</math>變化的[[電場]]<math display="inline">\boldsymbol{E}</math>，對應的三維[[波函數]]如下<ref>{{cite book |url=https://www.google.co.uk/books/edition/Polarized_Light_in_Fiber_Optics/I3lBS7RBX3oC?hl=en&gbpv=1&pg=PA27&printsec=frontcover |page=27 |title=Polarized Light in Fiber Optics |author=Edward Collett |year=2003 |isbn=9780819457615 |publisher=PolaWave Group}}</ref>

<math display="block">\nabla^2 \boldsymbol{E}(\boldsymbol{r},t)=\frac{1}{c^2} \frac{\partial^2 \boldsymbol{E}(\boldsymbol{r},t)}{\partial t^2}</math>

電場在推動粒子及對粒子作功上，會較磁場有效，因此光學場會以電場 '''E''' 來表示。

==相關條目==
*[[光場]]
*{{link-en|近場光學|Near-field optics}}
*{{link-en|電磁近場與遠場|Near and far field}}
==參考文獻==
{{Reflist|2}}

{{DEFAULTSORT:Optical Field}}
[[Category:光學]]
[[Category:電磁學]]
{{Optics-stub}}