Nano fabrication by laser interference. (1st January 2012)

• Record Type: Journal Article
• Authors: Peng, Changsi; Tan, Chunlei; Zhang, Wei; Gu, Xiaoyong; Liu, Weiping
• Is Part Of: International journal of nanomanufacturing. Volume 8:Number 3(2012)
• Page Start: 212
• Page End: 220
• Publication Date: 2012-01-01
• Subjects: laser interference lithography -- LIL -- nano-lithography -- photonics crystals -- nanomanufacturing; Nanostructured materials industry -- Periodicals; Nanotechnology -- Periodicals; 620.505
• Languages: English
• ISSNs: 1746-9392

Abstract

Both high costs and low efficiency throughput discourage industrial end-users from expanding their nanotechnology-related activities with the conventional techniques such as ion beam lithography, electron beam lithography and scanning probe lithography. Laser interference lithography (LIL) will play a key role in realising the full potential of interference nano-lithography. In fabrication of nano structures, LIL technology shows great advantage of high resolution, and low cost and high efficiency compared with other beam technologies. Slight differences of incidence angles may introduce an extraordinary, controllable modulation on a uniform interference pattern. High intensity enhancement and sub-wavelength focusing were achieved simultaneously. Periodic arrays of holes in GaAs, covered with SiO2 bubbles, were directly written into the sample within only some minutes for the whole nano-processing. The diameters of the smallest holes were less than 30 nm. The smallest modification features of the GaAs were less than 5 nm.