Surface Magneto - Optic Kerr Effect System
This system captures polar, longitudinal, and transverse Kerr signals for surface magnetization analysis, including hysteresis, coercivity, and saturation fields.
CONTACT US1. Product Overview
The Surface Magneto-Optic Kerr Effect System (SMOKE) is a precision instrument for studying magneto-optical effects at material surfaces. It measures changes in reflected polarized light from magnetized surfaces, providing insights into magnetic properties and domain structures.
- Kerr angle: the rotation of linearly polarized light upon reflection.
- Kerr ellipticity: the ratio of semimajor to semi-minor axes of the resulting elliptically polarized light.
The system integrates Kerr effect measurements with microscopic domain imaging, achieving high stability and resolution for both research and industrial applications.
2. Key Features
- Low-noise laser source with TTL modulation.
- High-sensitivity photodetector for accurate light-intensity signal collection.
- Lock-in amplifier for frequency-locked signal acquisition.
- Low noise, high resolution, and excellent stability.
- Integrated optical system: users only need to mount the sample and adjust the sample rod.
- Combined Kerr effect measurement and magnetic domain microscopy, with microscopic resolution of 6 µm.
- In-situ vacuum measurement capability with multiple magnetic field and cryogenic options.
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Kerr Angle Resolution | < 0.001° |
| Ellipticity Resolution | < 0.1% |
| Minimum Spot Size | 10 µm |
| Maximum Magnetic Field | 2.2 T (with EM7 electromagnet) |
| Rotation Step | 0.1° |
| Displacement Step | 10 µm (X/Y/Z directions) |
| System Noise | < 1% |
4. Testable Samples & Applications
- Thin films and multilayers with magneto-optical properties
- Spintronic devices for Kerr-based analysis
- Surface magnetic anisotropy studies
- Domain wall dynamics and mapping experiments
Typical applications:
- Magnetic hysteresis loop measurements (longitudinal, transverse, polar)
- Area mapping of Kerr signals across sample surfaces
- Determining magnetic easy and hard axes via 360° rotation
- Magnetoelectric coupling testing through integrated electrical interfaces
5. System Configuration
- Low-noise laser with TTL modulation
- High-sensitivity photodetector
- Lock-in amplifier
- Integrated Kerr and microscopy system
- High-speed CCD for domain imaging
- Vacuum-compatible sample chamber with electrical interface
6. Optional Accessories
- Cryogenic option (100 K – 300 K range)
- Variable magnetic field configurations (up to 2.2 T)
- Polarizers and additional optical filters for enhanced domain imaging
7. Software Functions
- Real-time hysteresis loop acquisition (longitudinal, transverse, polar modes)
- Automatic background subtraction and noise correction
- Area mapping and anisotropy testing with step control
- Image capture and analysis of surface magnetic domains
- Data export in formats compatible with Excel, Origin, and other scientific software
8. Ordering Information
Model: Surface Magneto-Optic Kerr Effect System
Standard Components: Optical module, electromagnet, CCD microscopy system, sample stage
Optional Accessories: Cryogenic stage, variable magnetic field modules, polarizers
9. Why Choose Cryomagtech
- Advanced Kerr effect measurement with sub-millidegree resolution
- Integrated magnetic domain imaging for comprehensive analysis
- Flexible configuration for cryogenic and vacuum applications
- Proven reliability and professional technical support for global researchers
10. Contact & Inquiry
For more details, custom configurations, or quotations, please contact:
Cryomagtech
🌐 www.cryomagtech.com
📧 edaystore@outlook.com