Attosecond laser field ionization from metal nano-tip

Research Project

Project/Area Number	23740309
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Atomic/Molecular/Quantum electronics
Research Institution	Waseda University
Principal Investigator	NIIKURA Hiromichi 早稲田大学, 理工学術院, 准教授 (10500598)
Project Period (FY)	2011 – 2012
Project Status	Completed (Fiscal Year 2012)
Budget Amount *help	¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000) Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000) Fiscal Year 2011: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Keywords	原子 / 分子 / 高強度レーザー / トンネルイオン化 / 金属ナノチップ / イオン化ダイナミックス / 超短レーザーパルス / 超短高強度レーザーパルス / キャリアエンベロープ位相安定化
Research Abstract	I studied the intense laser-field induced electron emission process from a metal nano-tip. I irradiated 6 fs and 35 fs laser pulses to a tungsten tip with a diameter of 20 nm. I measured the discrete photoelectron spectra of the electron emitted from the tip. Using a pump-probe time-dependent approach, I observed that the yield of the electron emission varies with the delay between the pump and probe pulse.

Report

(3 results)