'A'
Beam focusing through a tapered subwavelength aperture surrounded by dielectric surface gratings
Author(s): Zheng GG (Zheng, Gai-Ge)1, Shi LX (Shi, Lin-Xing)2, Wang HL (Wang, Hai-Lin)1, Li XY (Li, Xiang-Yin)1  
Source: OPTICS COMMUNICATIONS    Volume: 282    Issue: 20    Pages: 4146-4151    Published: OCT 15 2009    
Addresses:
1. Nanjing Univ Sci & Technol, Sch Sci, Nanjing 210094, Jiangsu Peoples R China
2. HuaiHai Inst Technol, Sch Sci, Lianyungang 222005, Jiangsu Peoples R China

'B'
Optical beam focusing by a single subwavelength metal slit surrounded by chirped dielectric surface gratings
Author(s): Kim S (Kim, Seyoon)1,2, Lim Y (Lim, Yongjun)1,2, Kim H (Kim, Hwi)1,2, Park J (Park, Junghyun)1,2, Lee B (Lee, Byoungho)1,2  
Source: APPLIED PHYSICS LETTERS    Volume: 92    Issue: 1  Article Number: 013103    Published: JAN 7 2008