Indium (extra bit)
Indium (extra bit) - Periodic Table of Videos
Introduction
In this video, the presenter discusses an interesting application of indium in their own research, which led to being featured on the cover of the journal New Scientist.
Main Points
- Application of Indium:
- The research involved a material called indium antimonide, an alloy of indium (from group 3) and antimony (from group 5), which forms a semiconductor.
- This material was used to create a tunable infrared laser known as a spin-flip Raman laser.
- Research Process:
- The fixed-wavelength infrared laser was shone onto the indium antimonide crystal, which was maintained at a very low temperature (4 degrees absolute) in a high magnetic field.
- By tuning the magnetic field, tunable infrared radiation could be achieved.
- Impact on Research:
- Although the spin-flip Raman laser did not work extremely well, the research sparked significant interest in infrared lasers for the presenter and their colleagues.
- This interest led to advancements in the research group and the development of sophisticated infrared lasers used in current experiments by colleague Mike George at Nottingham.
- Historical Context:
- The presenter shares a personal anecdote about being featured on the cover of New Scientist with their PhD supervisor and collaborator Jim Turner.
- The legacy of this research continues to influence current work and advancements in infrared laser technology.
- Equipment Used:
- The presenter shows a copper cell used in the experiments, which was cooled with liquid nitrogen and contained a chamber with windows transparent to infrared light.
Conclusion
The video highlights the significant role of indium in semiconductor research and infrared laser technology, demonstrating its impact on the presenter's career and ongoing advancements in the field. The historical context and personal anecdotes provide an engaging and informative narrative.