Femtosecond laser pulse induced air-plasma filament for generating THz radiation: experiment and simulation
Project Description

The state-of-the-art method to generate bright and broadband THz radiation is utilizing high-power femtosecond laser to ionize ambient air into plasma. The transient electric dipole with a lifetime of sub-100 fs will, in turn, emit THz waves that covers an broad spectral range. We will implement experimental setup for coherent generation and detection of THz waves from a two-color femtosecond laser-induced air plasma. To explore and ultimately unveil the coherent nature of radiation process on ultrafast timescale from the atomic level through macroscopic spatial scale.

Supervisor
ZHANG Jingdi
Quota
2
Course type
UROP1100
UROP2100
UROP3100
UROP4100
Applicant's Roles

UROP participants will work independently or interdependently with a fellow UROP student, under the supervision of UROP advisor.

Applicant's Learning Objectives

(i) Basic skills for ultrafast laser beam alignment
(ii) Pulse duration measurment with FROG
(iii) Instrument control using Labview
(iv) Principles of nonlinear optics and generation of THz wave
(v) Numerical simulation (finite-difference time-domain method) of coupled differential equations using Matlab

Complexity of the project
Challenging