Dr Rostislav Mikhaylovskiy

My group has access to two ultrafast amplified laser systems (both 7 mJ pulse energy, 1 kHz repetition rate, ~100 fs pulse duration, 800 nm central wavelength). Using these lasers combined with optical parametric amplifiers (OPA) and non-collinear difference frequency generator (NDFG), we have capability to generate intense pulses (electric/magnetic peak field 1 MV/cm and 0.3 Tesla respectively) of THz frequencies (broadband spectrum 0.1 – 2.5 THz) and infrared/visible wavelengths (narrowband, continuously tuneable between 250 nm – 18 µm). We have custom-built non-collinear optical parametric amplifier (NOPA) yielding ultrashort pulses of ~10 fs, enabling sub-cycle electro-optic sampling of mid-infrared fields. The existing cryogenic equipment allows for the pump-probe measurements in a broad temperature range 3.5 – 400 K. We study ultrafast dynamics and switching in a broad variety of samples including ferromagnetic metals, spintronic heterostructures, antiferromagnetic oxides, and even quantum superfluids.

Ultrafast control of quantum materials with focus on magnetism, antiferromagnetic magnonics, terahertz spintronics, new magnetic recording technologies.