Technical Brief

Fabrication and Characterization of Photonic Crystals in Photopolymer SZ2080 by Two-Photon Polymerization Using a Femtosecond Laser

[+] Author and Article Information
Yinan Tian, Hyukjoon Kwon, Galen B. King

Center for Laser-Based Manufacturing,
School of Mechanical Engineering,
Purdue University,
West Lafayette, IN 47907

Yung C. Shin

Center for Laser-Based Manufacturing,
School of Mechanical Engineering,
Purdue University,
West Lafayette, IN 47907
e-mail: shin@purdue.edu

1Corresponding author.

Contributed by the Manufacturing Engineering Division of ASME for publication in the JOURNAL OF MICRO- AND NANO-MANUFACTURING. Manuscript received May 31, 2013; final manuscript received May 20, 2014; published online July 8, 2014. Assoc. Editor: Nicholas Fang.

J. Micro Nano-Manuf 2(3), 034501 (Jul 08, 2014) (5 pages) Paper No: JMNM-13-1041; doi: 10.1115/1.4027737 History: Received May 31, 2013; Revised May 20, 2014

Two-photon polymerization (2PP) is a powerful technique in fabricating three-dimensional subdiffraction-limited structures. In this paper, 2PP was applied to generate woodpile structures, one kind of photonic crystal, using SZ2080, which is widely used in 2PP due to its negligible shrinkage. First, the relationship between scanning speed, laser power, and resolution was determined through fabricating free-hanging lines by theoretical and experimental study. Based on this relationship, woodpile structures with different period distances were fabricated with high uniformity as shown by scanning electron microscopy (SEM) images. Then optical properties of woodpile structures were investigated using Fourier transform infrared spectroscopy (FTIR) and a quantitative empirical relationship between period distance and band gaps was established. The empirical relationship can be applied to design woodpile photonic crystals for the optical sensors and filters.

Copyright © 2014 by ASME
Your Session has timed out. Please sign back in to continue.



Grahic Jump Location
Fig. 1

Experimental setup

Grahic Jump Location
Fig. 2

Sketch of woodpile structure

Grahic Jump Location
Fig. 10

Relationship between band gap and period distance

Grahic Jump Location
Fig. 9

Transmittance spectra of woodpile structures

Grahic Jump Location
Fig. 8

Top view of woodpile structure

Grahic Jump Location
Fig. 7

Side view of woodpile structure

Grahic Jump Location
Fig. 6

Woodpile structure with d = 2.9 μm

Grahic Jump Location
Fig. 5

Woodpile structure with d = 2.1 μm

Grahic Jump Location
Fig. 4

The relationship between resolution and laser power, scanning speed

Grahic Jump Location
Fig. 3

SEM image of structure in resolution experiment




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In