Dr. Pierre-Adrien Mante Profile

Dr. Pierre-Adrien Mante

at The Hong Kong Polytechnic 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 | 14 March 2018 Presentation

Phonons in semiconductor nanowires (Conference Presentation)

Pierre-Adrien Mante

Proceedings Volume 10530, 105300M (2018) https://doi.org/10.1117/12.2287822

KEYWORDS: Phonons, Nanowires, Acoustics, Semiconductors, Ultrafast phenomena, Scattering, Transducers, Ultrafast laser spectroscopy, Spectroscopy, Absorption

Read Abstract +

The novel and versatile physical properties of nanowires have stimulated large fundamental and technological interests during the last decades. The appearance of novel boundary conditions, compared to bulk materials, drastically modifies phonon propagation and scattering in these materials. As a consequence nanowires has been intensively studied for the various implications of such modifications: control of thermal transport at the nanoscale, thermoelectricity or nano-sized acoustic transducer. Ultrafast pump probe spectroscopy is perfectly suited to study phonons in such structures. The absorption of a femtosecond pulse leads to the generation of high frequency coherent acoustic phonons and their evolution can be time resolved thanks to the high temporal resolution of this technique. Here, I will discuss some of our most recent studies of coherent acoustic phonons in semiconductor nanowires. I will first briefly describe the modifications of light and sound behaviour due to the 1D structure. I will then present observations of both confined and propagating acoustic phonons in nanowires. Finally, I will show how from the observation of the phonons, complete elastic characterization of nanowires can be achieved. After demonstrating the capabilities of this method on well-known materials, it is applied to the wurtzite phase of GaAs, a metastable phase in bulk, and measured for the first time its elasticity tensor. These results, in addition to the characterization capabilities, also provide an understanding of the thermal transport at the nanoscale and opens new possibilities for light control at the nanoscale.

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