CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume PC13005 > Article
Presentation
20 June 2024 Dynamics of ultrafast laser nanostructuring in bulk sapphire in non-diffractive mode: a micro-explosion in slow motion
Rajeev Dwivedi, Huu Dat Nguyen, Thirunaukkarasu Kuppan, Ciro d'Amico, Razvan Stoian
Author Affiliations +
Proceedings Volume PC13005, Laser + Photonics for Advanced Manufacturing ; PC130050R (2024) https://doi.org/10.1117/12.3017189
Event: SPIE Photonics Europe, 2024, Strasbourg, France
Abstract
Recently, the ultrafast Bessel beam has emerged as an efficient tool to structure nano-volumes in sapphire crystals with a high aspect ratio of more than 100. To increase the controllability of the process, there is a quest to understand better the interaction of ultrafast Bessel beams with sapphire in intensity ranges pertinent for nanostructuring. In the present study, we investigate the ultrafast interaction of a short-pulsed Bessel beam with a single-crystal sapphire sample using time-resolved phase contrast and quantitative phase contrast microscopy techniques. The time-resolved relaxation dynamics reveal that the plasma phase in sapphire persisted for the duration of a few ns followed by the tens of ns long hot phase that triggers amorphisation. Around 100 ns the manifestation of nano-volume expansion becomes visible. This study contributes to attaining precise control in the laser processing of sapphire for scientific and industrial applications.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Rajeev Dwivedi, Huu Dat Nguyen, Thirunaukkarasu Kuppan, Ciro d'Amico, and Razvan Stoian "Dynamics of ultrafast laser nanostructuring in bulk sapphire in non-diffractive mode: a micro-explosion in slow motion", Proc. SPIE PC13005, Laser + Photonics for Advanced Manufacturing , PC130050R (20 June 2024); https://doi.org/10.1117/12.3017189
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
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: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Sapphire
Ultrafast lasers
Laser nanostructuring
Bessel beams
Ultrafast phenomena
Crystals
Industrial applications
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top