We report the simulation of photonic crystals by holographic interference. In this article, different parameters such as azimuth angle, polarization angle, incident angle and phase degree are discussed, and the influences of them to interference patterns are studied. For 3 + 1 beams, the incidence angle influent the structure period, the phase degree doesn’t influent interference structure, the azimuth angle and polarization can change the structure. The azimuth angle change makes triangle claw structure elongate and intercourse and the polarization makes the contrast change. The simulation result paves a way for the optimized fabrication of structures by holographic lithography.
One method for measuring thin film thickness was proposed in this paper, which based on white light interference. One parallel flat crystal was used to be the standard glass, and put another glass on it, to form one air wedge between them. The reflectance spectrum of two beams interference was measured by one spectrometer. By fitting the reflectance spectrum, wave numbers corresponding to every peak can be found, then using two beam interference theory, the air gap thickness at light incident point can be fitted. By measuring the air gap thickness at different positions, the flatness of measured surface also can be analyzed.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.