Contents Intro.

The application of high-power high-energy laser systems in fundamental science vastly increasing with the development of these sources. Facilities around the globe are being developed in order to provide Peta-Watt (PW) class output. One of the components for PW laser is the Ti:sapphire amplifier system comprised of high energy nanosecond pump source. This pump source itself is made of amplifier system consisting of gain medium which could be designed in a shape of a rod, slab or thin disk.We suggest a new approach for the gain medium configuration to obtain joule level laser output. It consists of periodically bonded gain crystal and transparent heatsink with higher thermal conductivity value. By facing the gain directly with the heatsink, allows the heat generated to be extracted directly through it. Therefore, this approach is called Distributed Face Cooling (DFC). To make bonding between crystals strong and prone to optical damage, we implement Surface Activated Bonding (SAB) technology which was recently improved for laser materials for CW and pulsed operation.In the first part of the seminar, I will introduce our research work on designing high energy laser system and surface activated bonding technology, following the challenges and perspectives. In the second part, I will discuss my activity in prof. Taira group on research and development of compact size passively Q-switched solid-state microchip lasers and frequency conversion experiments.

Details

Publication year

2021

Form

電子化映像資料(1時間15分38秒)

Series title

光ナノサイエンス特別講義 ; 2021年度

Note

講演者所属: 自然科学研究機構

講演日: 2021年12月24日

講演場所: E318中講義室　物質

Country of publication

Japan

Title language

Japanese (jpn)

Language of texts

Japanese (jpn)

Author information

Arvydas , Kausas (アルヴィダス, カウシャス)