Montana Cryogenic
1.Transient optical spectroscopy parameters: 1) Spatial Resolution: 0.6um(wavelength@550nm); 2) Time Resolution: 4 THz.
2. TR-reflectance, TR-moke.
3. Steady state reflectance.
4. Cryogenic chamber: 1)Temperature Range: 4k~350k.
5. Spectrometer(iHR550): 1) Spectral range: 150~1500 nm(1200 g/mm grating), 150 nm~40 µm(suitable gratings of other specifications).
6. Ultrafast optics characterization system: 1) pump wavelength: 650nm~900nm; 2) pump pulse width: 80 fs; 3) pump repetition frequency: 100 kHz; 4) probe wavelength: 600nm~1000nm; 5) probe repetition frequency: 100 kHz.
Attocube 2100 cryogenics
1.Magnetic Field:Type: 9/3T Dual-Axis Vector Magnetic Field.
2.Temperature Range: Variable Temperature Range: 1.7-300K.
3.Optical Equipment: 1) Objective Lens: 40x; 2) Lasers: 532 nm & 632.8 nm Continuous Laser, 400-900 nm Ultrashort Pulse Laser ( pulse width: 20-50fs, repetition rate: 100kHz, probe wavelength: supercontinuum white light ).
4.Displacement Stage: Four-Axis (x, y, z, rotation) Piezoelectric Ceramic Displacement Stage.
5.Measurement Equipment: 1) Spectrometer: Horiba iHR550 (Resolution: 300/600/1800 g/mm); 2) Detector: Free-Space Amplified Photodetectors & Free-Space Balanced Amplified Photodetectors.
6.Functional Features: 1) Micro-Area Fluorescence (PL) Spectroscopy; 2) Absorption/Reflection Spectroscopy; 3) Raman Spectroscopy; 4) Second Harmonic Generation (SHG) Spectroscopy; 5) Reflective Magnetic Circular Dichroism (RMCD); 6) Magneto-Optical Kerr Effect (MOKE, both transient and steady-state).
Montana cryogenic (Integrated PL, SHG, and MOKE System)
1.Temperature Range: Variable Temperature Range: 4.2-350K (The sweep rate:＜5K/min).
2. Maximum magnetic field: 5 kOe.
3.Measurement Equipment: 1) Spectrometer: Andor Shamrock 500i (Resolution: 300/600/1800 g/mm); 2) CCD: Newton DU971P; 3)Magneto-Optical Kerr Effect Measuring Instrument.
4. Functional Features:
1) Micro-Area Fluorescence (PL) Spectroscopy: a) laser wavelength: 405 nm & 635 nm.
2) Second Harmonic Generation (SHG) Spectroscopy: a) laser wavelength: 1033 nm; b) laser repetition frequency: 25 MHz; c) maximum power of the laser incident on the sample: 7 mW.
3) Raman Spectroscopy: a) laser wavelength: 632.8 nm; b) filter: 1 BPF & 3 BNF; c) As low as 20 cm^(-1).
4) Magneto-Optical Kerr Effect(MOKE): a) single scan time: ≈0.5 s.
Glovebox – optical microscope for sample preparation
Photo-emission electron microscopy（PEEM）
1. Spatial Resolution: <10 nm
2. Imaging Electron Energy: 0V ~ 500 eV
3. Imaging Field of View: 2 μm ~ 100 μm
4. Magnification: 267x ~ 20000x
5. Equipped with an electron deflector with magnetic coils; equipped with an electron astigmatism corrector with magnetic coils; equipped with an electron contrast aperture, as well as a three-dimensional manipulator.
6. Vacuum Level During Imaging: < 1*10⁻¹⁰ Torr
7. Sample Temperature: 110 K ~ 1800 K
8. Specially designed sample holder with 6 pin electrodes.
9. Hemisphere Electron Energy Analyzer: Energy resolution <100 meV;
10. Energy analyzer adopts electrostatic lens construction, radius ≥ 200 mm;
11. Ultra-high precision five-dimensional sample stage: XY = ± 4 mm, Z ≥ 50 mm, tilt angle = ± 2°;
12. Liquid Nitrogen Cooling Mechanism: Cooling temperature ≥ 110 K.
High power femtosecond YAG:Yb fiber Laser
1. Average power: >50W@250KHz
2. Beam quality: M2<1.3
3. Wavelength: 1030nm±5nm
4. Spot circularity: >85%
5. Beam divergence angle: <1 mRad
6. Directivity: <20 uRad/℃
7. Power stability: <1% RMS over 24 hours
8. Repetition frequency: 100K~1 MHz
9. Pulse width: 80 fs Output height: 125mm
Home-built NIR noncollinear optical parameter amplifier
1. Difference frequency generation between hv = 1.2 eV and supercontinum spectrum in beta-BBO with thickness 5 mm.
2. Single photon energy hv tunable from 1.2～2.4 eV.
3. Ouput pulse : a) duration: 20～50 fs; b) pulse energy: ≤500 mW.
High-power femtosecond Herriott-type bulk multipass cell
1. Herriott-type cavity with bulk Kerr medium Fused Silica (1~2 mm) with anti-reflection (AR) coated in both sides and HR coated for cavity mirrors.
2. Input laser: 1) Repetion frequency : 1 MHz; 2) Power reach to 30 W focused by convex-concave groups as mode-matching of cavity.
3. Output beam : 1) FHWM of the spectra : nearly 100 nm; 2) Pulse width: ~30 fs compressed by chirped mirrors with compensated GDD～5000fs^2.
4. Transmittance ≥ 80%.
Physike Cryogenic
1.Temperature Range: 1) Variable Temperature Range: 77-420K
2. Functional Features:
1) Transient Reflection Spectrum: a) pulse width: 80 fs; b) wavelength: 800nm; c) repetition frequency: 1 MHz.
2) Time resolved magneto-optical Kerr effect (tr-MOKE)