Mr. Tianwei Fan Profile

Tianwei Fan

at Beijing Jiaotong Univ

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 21 August 2014 Paper

Multiphase Talbot effect based on periodically poled MgO: LiNbO3

Yunlin Chen, Tianwei Fan

Proceedings Volume 9233, 92331Y (2014) https://doi.org/10.1117/12.2065307

KEYWORDS: Crystals, Diffraction, Visibility, Electro optics, Electrodes, Near field diffraction, Indium, Tin, Oxides, Integrated optics

Read Abstract +

A light intensity distribution generated by an electro-optic tunable multiphase array based on the Talbot effect under lower external electric field was demonstrated. This 2-D distribution is mapped as a 2D hexagonal tunable phase array based on the periodically poled MgO-doped LiNbO₃ crystal (PPMgLN). Applying a lower external electric field through the Indium Tin Oxide (ITO) electrodes coated on the +z and –z surfaces of PPMgLN crystal, a tunable PTAI was fabricated. The self-imaging phenomenon of Talbot effect in the Fresnel field for this phase array coherently illuminated is theoretically analyzed according to Fresnel diffraction theory. The experimental and theoretical results show that the self-images visibility depends on array duty cycle and external electric field for a fixed diffraction distance. The optimal self-images visibility can be obtained at array duty cycle of 52%, phase difference of 0.75π for diffraction position of 0.33 times Talbot distance. Moreover, a preferable self-image pattern can be observed under an unprecedented lowest external voltage of 0.461kV correspond to phase difference of 0.35π，which is beneficial to optical integration and micro optical devices.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

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.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

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.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years