Equipe: Acoustics and optics for nanosciences and quantum physics

  The phononic microcavity is formed by two GaAs/AlAs superlattice, Distributed Bragg Reflector (DBR) mirrors and a λ/2 cavity. The DBRs are grown by MBE in-house at the INSP using a state-of-the-art Riber Compact...

Assembly Transient Networks / 4 Wave Mixing (100 MHz – 2 GHz) (1 Quantel Picosecond laser 20Hz + 1 Verdi Coherent continuous laser 2W).   This experimental technique, known as transient grating, or “4-wave...

Assembly “Ultrasonic laser for surface wave generation (100 kHz_100 MHz)” with interferometric detection (1 Quantel 20Hz Picosecond laser + 1 Helium_Neon).   Surface wave generation is obtained by illuminating the sample surface with a...

Generation and detection of surface acoustic waves via interdigital transducers Surface acoustic waves are excited by interdigital combs (IDT) lithographed on the sample. IDTs are usually excited by wave trains provided by a sinusoidal...

  Thermo-reflectance Microscopy Assembly   Modulated ThermoReflectance is a non-contact method that allows to follow the heat diffusion in modulated regime induced in a sample and consequently to deduce its thermal properties thanks to...

Asynchronous Optical Sampling (Real Time Stroboscopy) ASOPS   Since 2010, a new concept of pump-probe measurement has been studied and implemented on our experimental benches: Asynchronous Optical Sampling (ASOPS), which consists in using 2...

  Material: 3 femtosecond lasers 80 MHz SpectraPhysics 2 cavities Tsunami 3W and 1W, 1 cavity Mai_Tai 2W, 1 OPO (Optical Parmetric Oscillator 500nm-1.6µm), 1 pulse picker doubler, 1 furnace for temperature study of...

  Polarized light interferometric assembly for quantitative mapping of surface waves   This assembly was developed as part of a study on the Non-contact handling of fluids and particles using acoustic fields. Surface acoustic...