Dr. Tian-hua Meng Profile

Dr. Tian-hua Meng

at Shanxi Datong Univ

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 | 10 October 2020 Poster + Paper

Properties of split ring resonators metamaterials terahertz sensor on flexible substrates

Tianhua Meng, Guozhong Zhao, Wenyu Li, Ran Sun, Yuhe Lu, Rong Huang

Proceedings Volume 11559, 1155916 (2020) https://doi.org/10.1117/12.2575328

KEYWORDS: Sensors, Terahertz radiation, Metamaterials, Split ring resonators, Dielectrics, Gold, Wave sensors, Electromagnetism, Computer simulations, Analytical research

Read Abstract +

Enhance sensitivity of the terahertz (THz) wave sensor by the THz wave control characteristic based on artificial electromagnetic meta-materials, is a hot spot in current research. The performance of split ring resonators (SRRs) THz sensor on Mylar substrate is numerical simulated with COMSOL Multiphysics software in this paper. The two key characteristic parameters of the THz sensor are analyzed with COMSOL Multiphysics software, which are the thickness of the Mylar substrate and the gap width of the gold SRRs. By comparing the relationship between different parameters and the corresponding resonance frequency curve, the optimal parameters of the THz sensor are obtained which are 10 microns for the Mylar substrate thickness, 2 microns for the gap width of gold SRRs. Then the optimized THz sensor model is used to test the different thickness and relative dielectric constant material with the COMSOL Multiphysics software. The results show that the resonant frequency (f₀) move to lower frequency with the increase of the relative dielectric constant of tested materials, and has a good linear relationship between the f0 and the relative dielectric constant of tested materials. While the f₀ also move to lower frequency as the thickness of tested materials are increase, but when the thickness are more than 5 microns, the resonance peak stay at near 1.997 THz. They are show that the SRRs THz sensor on flexible substrate has high measurement precision, sensitivity, and reliability when the tested materials are common metal, semiconductor and medium layer which layer thickness is less than 5 microns, and the relative dielectric constant for the range of 1-4 by the linear relationship between the resonance frequency and the different parameters of tested materials, as well as it can provide theory references for actual testing of such terahertz sensors.

Proceedings Article | 12 August 2015 Paper

Transmission enhancement of the ellipse gold split rings

Tianhua Meng, Lijuan Dong, Chengquan Yang, Yuhe Lu, Yunlong Shi, Guozhong Zhao

Proceedings Volume 9625, 962502 (2015) https://doi.org/10.1117/12.2193062

KEYWORDS: Terahertz radiation, Gold, Absorption, Refractive index, Silicon, Polarization, Modulation, Spectroscopy, Photonic devices, Metamaterials

Read Abstract +

In this paper, we present experimentally the transmission and absorption properties of THz pulse through subwavelength ellipse gold rings which deposited on the silicon substrate. The transmission measurement is carried out using THz time-domain spectroscopy. THz spectra of these ellipse gold rings shows the high transmissivity, low absorption and flat refractive index curve in the frequency range of 0.4-2.5 THz. The results show that the transmission coefficients of all samples are above 0.68 in THz wave band. And the enhanced transmission of the two kinds of samples is more sensitive in high frequency range than in low frequency range. Especially when the angle between the THz wave polarization direction and the long axis of elliptic ring is 0o, the transmission coefficient for the ellipse gold split rings of sample No.2 is more than 0.98 after 1.45THz. The slits were introduced into the ellipse gold rings structure can be used effectively to modulate transmission light for the potential application of THz photonic 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