What the facility does
Characterization of thermal and magnetic properties of nanoscale materials using ultrafast laser pump-probe techniques.
Areas of expertise
The facility uses an ultrafast laser to capture the dynamics of heat transport and magnetic phenomena down to the picosecond time scale. This information reveals heat dissipation bottlenecks in materials and devices, and reveals under what conditions information can be stored on magnetic data storage media.
Research services
- Time-domain thermoreflectance (TDTR)
- Time-resolved magneto-optic Kerr effect (TR-MOKE)
- Picosecond ultrasonic measurement of thin film thickness
- Magnetic switching probability as function of magnetic field strength and angle, following optical pulsing
- Curie temperature distribution in granular magnetic media
Sectors of application
- Information and communication technologies and media
Specialized labs and equipment
| Equipment | Function |
|---|---|
| Amplitude Laser Satsuma HP2 fiber laser with second harmonic generator | 10 Watt fiber laser operating at 1030 nm and 515 nm; pulses tunable 350 fs to 10 ps; from single shots to 40 MHz repetition rate. |
| Conoptics Electro-Optic modulators | Modulators for 1030 nm and 515 nm light, up to 30 MHz digital modulation. |
| GMW 3473 electromagnet with rotating base and power supply | Magnetic fields of up to 3 tesla with arbitrary orientation using 50 mm pole pieces. |
| Newport 600 mm linear stage | Provides pulse time delays of up to 4 ns. |
| Zurich Instruments HF2LI lock-in amplifier | 50 MHz bandwidth 2-channel lock-in amplifier with multi-frequency option. |
Additional information
| Title | Hyperlink |
|---|---|
| Engineering prof’s research proposes solution to current data storage limitation | https://yfile.news.yorku.ca/2017/06/14/engineering-profs-research-proposes-solution-to-current-data… |