Microscopy Lab

Lab contact: +81(0)98-966-8874
Location: Lab 2 A674
 

The Microscopy Lab experimental capabilities rely on MHz repetition rate Ti:Sa oscillators (4 MHz and 80 MHz). They are used to generate a wide variety of wavelengths in the Far-Infrared/Terahertz (3mm-16 µm), the Visible/Near-Infrared (690-1400nm) and in the UV (400nm, 266nm and 200nm). In addition, we have incorporated and developed tools for pulse compression and shaping to generate sub-10 fs pulses. These capabilities allow us to perform high signal-to-noise pump-probe [1], ultrabroadband THz Time-Domain Spectroscopy [2], Time-Resolved Photoemission Electron Microscopy [3] (which gives the lab its name; see LEEM/PEEM section for more details) and to study optical nonlinearities in 2D materials [4].

  1. J. Madeo et al., Opt. Lett 40 (14), 3388-3391 (2015).
  2. P. J. Hale et al.Opt. Express 22 (21), 26358-26364 (2014).
  3. M. K. L. Man et al.Nat. Nanotechnol. 12, 36 (2017).
  4. S. Deckoff-Jones et al.Sci. Rep. 6, 22620 (2016).

EXPERIMENTAL CAPABILITIES:

  • Laser sources:
    • Femtolasers Femtosource XL 650 (800 nm, 4 MHz, 650 nJ, 45 fs)
    • Spectra Physics MaiTai HP (690-1020 nm, 80 MHz, 30 nJ, 100 fs)
  • Nonlinear wavelength conversion:
    • Femtolasers Europa 4 MHz optical parametric amplifier (1100-1400 nm)
    • Homebuilt fourth harmonic generation (400nm, 266nm, 200 nm)
    • Homebuilt ultrabroadband THz generation (1mm-16 µm)
  • Pulse shaping and compression:
    • Femtolasers XS fiber-based compressor
    • Biophotonics Solutions MIIPSbox640, phase, amplitude and polarization pulse shaper
  • Experimental setups:
    • THz-time domain spectroscopy
    • Pump-probe spectroscopy
    • Optical pump- THz probe
    • Time-resolved photoemission electron microscopy

HISTORY

The Microscopy Lab was the first lab established by the Femtosecond Spectroscopy Unit, and thus the first ultrafast lab at OIST. Built in a record time of three months from the day the Unit was established, we first setup shop in a temporary location in Lab 1 in January 2012, while Lab 2 was mere scaffolding. It has since moved to its permanent location in Lab 2 in February 2014.

Check out the time lapse videos below to see this history!

High energy laser installation in the temporary location in Lab 1

Moving the microscopy lab to its permanent location in Lab 2

 

​Page last updated on September 03, 2017 (JM/CP).