User:J S Lundeen

Hello all. I did my Ph.D. in experimental quantum optics and quantum information at the University of Toronto under the supervision of Dr. Aephraim Steinberg. I did a post-doc in Ian Walmsley's group at the University of Oxford in quantum optics and quantum information in integrated optical circuits. Following that, I worked in standards and metrology at the National Research Council Canada. I am now an Associate Professor in Physics at the University of Ottawa.

Articles I initiated

• degree of coherence
• interferometric visibility
• acousto-optic modulator
• interferometric visibility
• Wigner quasi-probability distribution
• POVM
• Interaction-free measurement
• Massasauga Provincial Park
• List of types of interferometers

Articles I substantially changed

• spontaneous parametric down-conversion
• coherent state
• Brewster's angle
• coherence (physics)
• principle of minimum energy
• Optical activity

Articles I am changing here and there

• nonlinear optics
• Dispersion (optics)

Articles I want to edit

• Electric Field
• SPIDER
• Quantum optics # History of quantum optics
• Quantum chaos
• Integrated optical circuit

/Jeff's Sandbox

Tip of the day...

Transclusion vs. Substitution

There are two main ways to use templates on articles:

1. Transclusion – also called "inclusion", and accomplished by using {{Template Name}}
2. Substitution – notated like this {{subst:Template Name}}

Transclusion will include the content of Template Name on the fly whenever the article is loaded, while the latter will permanently insert the content of the template into the article. With substitution, even if the template content is modified at a later date, the article's content will not change.

Substitution is the preferred method for long-term, permanent notices because it is less confusing, and it even helps to lighten the load on the database. Substitution has the further advantage in that a template's content may be de-linked from any associated category or slightly modified to suit the circumstances, such as when the template is used on a talk page. Transclusion is preferred for displaying material that is normally updated, that way, all the places it appears are updated in a single operation.

Prior tip – Tips library – Next tip

Read more:

Templates: what they are and how to use them  

Wikipedia:Transclusion costs and benefits  

Wikipedia:Substitution  

Become a Wikipedia tipster

To add this auto-updating template to your user page, use {{totd}}