Dr. Shaoyu Zhao Profile

Dr. Shaoyu Zhao

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 | 6 November 2023 Paper

Design of a visible and LWIR dual band imaging detector

Weiping Wang, Shuxia Zhao, Jun Cao, Jing Cao, Xiaoyan Hu

Proceedings Volume 12921, 1292124 (2023) https://doi.org/10.1117/12.2689053

KEYWORDS: Long wavelength infrared, Visible radiation, Microbolometers, Design and modelling, Imaging systems

Read Abstract +

In order to obtain a high-resolution image and realize the all-day imaging simultaneously, a visible and long-wave infrared dual band imaging detector is proposed and designed, by a meta surface structure through which the infrared light has been absorbed and the visible light passed. With a monolithic chip, the visible light of 400 nm to 900 nm and the long-wave infrared light of 8 μm to 14 μm have been detected, which have the apparent size and weight advantages. This validates the improved integration of structure and results in considerable reduction of the complexity of the imaging system, which is advantageous to target recognition in complex environment.

Proceedings Article | 26 April 2019 Paper

Integrated silicon-on-insulator broadband spectrometer with a high resolution

Weiping Wang, Shaoyu Zhao, Xiaoyan Hu

Proceedings Volume 11031, 110311B (2019) https://doi.org/10.1117/12.2523086

KEYWORDS: Spectroscopy, Waveguides, Silicon, Spectral resolution, Modulation, Silica, Thermal optics

Read Abstract +

Optical spectrum analysis has been widely used in numerous areas such as optical network performance monitoring, materials analysis and medical research. Although there are many kinds of spectrometers, on-chip spectrometer could be a promising alternative with apparent size and weight advantages,. Silicon-on-Insulator(SOI) waveguide technology offers means to miniaturize the different parts of the spectrometer, even if often at the cost of performance and scalability. In this work, a cascaded waveguide structure was proposed for a spectrometer, with a spectral range from 1150nm to 1550nm, which corresponds to the second overtone region of the NIR absorption, and a resolution of 2 nm for performing spectrum derivation. The spectrometer is realized by a SOI cascaded Mach-Zehnder Interferometer and four SOI arrayed waveguide gratings. The cascaded MZI based coarse wavelength division de-multiplexers was employed for the first stage of the spectrometer and was used to disperse the signal into four channels. The output signals of the four channels are further dispersed into eight channels by the second stage AWG structures. We further implemented the thermo-optic modulation to achieve a higher spectral resolution. The output channel wavelengths of the spectrometer are modulated (with a wavelength shift 2 nm) by the embedded heater to obtain the first order derivative spectra of the input optical signal. We present the theory, modeling, and experimental demonstration of the thermally tuned spectrometer. With respect to the computer simulation and device characterization results, the 400nm spectral range and the 2nm resolution have been demonstrated.

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