Ms. Jie Huang Profile

Jie Huang

at Hunan Univ of Science and Technology

SPIE Involvement:

Author

Publications (2)

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 | 29 November 2012 Paper

Nonlinear imaging properties of two parallel gain-typed wirelike scatterers

Jie Huang, Yonghua Hu

Proceedings Volume 8551, 855106 (2012) https://doi.org/10.1117/12.999940

KEYWORDS: Beam propagation method, Free space, Nonlinear optics, Computer simulations, Modulation, Image processing, Imaging systems, Image acquisition, Gaussian beams, Optical components

Read Abstract +

Based on the optical path model for nonlinear imaging, we systematically investigated the propagation of flat-topped Gaussian beam which is modulated by two parallel gain-typed wirelike scatterers through computer simulation. It is found that hot image for each scatterer can be formed, with the hot image plane several centimeters behind the predicted conjugated plane obtained by the approximate theory for attenuation-typed scatterers. It is found that the object distance, i.e. the distance from the scatterer plane to the incident surface of the Kerr medium slab, has an important influence on the propagation properties and results in a new phenomenon. Under certain object distances, the evolution of the maximum intensity of the beam has one prominent peak before that for hot image, where the on-axis location is dozens of centimeters ahead of the hot image plane. As the size of the scatterers increases, the value of this peak increases at first and then decreases. As the object distance increases, the value of this peak decreases. The intensity distribution corresponding to this peak shows that, there is an intense fringe, which is the most intense fringe in the plane, at the middle point of the line connecting the two scatterers, indicating that it is a unique result of the interaction of the two scatterers. Besides, the influences of the object distance and the scatterer size on hot image intensity are discussed.

Proceedings Article | 17 November 2010 Paper

Nonlinear images of gain defects

Yonghua Hu, Haibo Wu, Qiuyun Zheng, Jie Huang, Jianbo Xu

Proceedings Volume 7843, 78431G (2010) https://doi.org/10.1117/12.870074

KEYWORDS: Signal attenuation, Phase modulation, Modulation, Nonlinear optics, Image processing, Beam propagation method, High power lasers, Image fusion, Free space, Image enhancement

Read Abstract +

The nonlinear imaging effect for small-scale defects with gain defect, which may be caused by the uneven gain in gain media, is investigated through numerically solving the propagation model with the standard split-step fast-Fouriertransform algorithm. Two cases, i.e. defects only causing gain and defects causing both gain and phase modulation, are considered. It is proved that nonlinear images can also be formed. However, when compared to the nonlinear imaging effect for defects causing attenuation, it is found that: firstly, the intensity at the point corresponding to the center of the scatterer experiences an obvious decreasing just before the nonlinear image is formed, contrary to the case the defect causing attenuation; secondly, this decreasing is enhanced as the gain caused by the defect increases; thirdly, there is a distance several centimeters, even more than ten centimeters, between the nonlinear images for gain defects and those for attenuation defects. For defects which cause both gain and phase modulation, above differences are ignorable, but the nonlinear imaging effect has some new properties: firstly, the beam peak intensity on the exit surface of the nonlinear medium is higher than that in the case the defect only causing phase modulation; secondly, the second-order nonlinear image is increased obviously, but the effect of the defect's gain on the image's peak intensity is limited. Besides, the effect of the distance between the defect and the nonlinear medium and that of the power of incident beam are discussed.

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