Deep learning and high harmonic generation

Generation and control of high-harmonic radiation

Extreme Nonlinear Optics (high harmonic generation and attosecond generation)

This method relies on the possibility of FourierSynthesis of discrete lines over a broad spectrum (similar to mode-locking). A Raman medium is characterized by its Raman frequency ω0, which can be the difference between two rotational or vibrational lines. When we apply a laser excitation ωL − ωs close to ω0, we can obtain gain at the stokes (ωL−nω0) and anti-stokes (ωL+nω0) frequencies, the Ra...

Music Generation with Deep Learning

The use of deep learning to solve the problems in literary arts has been a recent trend that gained a lot of attention and automated generation of music has been an active area. This project deals with the generation of music using raw audio files in the frequency domain relying on various LSTM architectures. Fully connected and convolutional layers are used along with LSTM’s to capture rich fe...

Attochirp-free high-order harmonic generation.

A method is proposed for arbitrarily engineering the high-order harmonic generation phase achieved by shaping a laser pulse and employing xuv light or x rays for ionization. This renders the production of bandwidth-limited attosecond pulses possible while avoiding the use of filters for chirp compensation. By adding the first 8 Fourier components to a sinusoidal field of 1016 W/cm2, the bandwid...

High-gain Harmonic-generation Free-electron Laser

A high-gain harmonic-generation free-electron laser is demonstrated. Our approach uses a laser-seeded free-electron laser to produce amplified, longitudinally coherent, Fourier transform-limited output at a harmonic of the seed laser. A seed carbon dioxide laser at a wavelength of 10.6 micrometers produced saturated, amplified free-etectron laser output at the second-harmonic wavelength, 5.3 mi...