1st International Seminar
Electron Optics Department Seminar
This year we tried to organise an international seminar on electron microscopy. It is very encouraging for us that all the invited people accepted our invitation so that on September 4 to 6, 1989 several world-renowned specialists in electron and ion microscopy and lithography met at our institute.
As an introduction, five-minute contributions were presented. They reported on the latest achievements of our Electron Optics Department and were later discussed more in detail at the individual laboratories.
Then lectures followed. They were given predominantly by our foreign guests:
Professor M. Troyon (France): The latest achievements in the field of
field emission electron sources.
In the related discussions, which lasted even several hours, all the participants took part. The moderator was Professor Mulvey (England). He summed up the course of the seminar in his contribution "Final Comments". Marie Fojtíková translated it into Czech.
The extraordinary lively discussions have proved the importance and need to hold such seminars with international participation. We therefore believe we will succeed in organising next in the future.
I have been asked to give a brief review about what was discussed during the seminar. First let me talk about the contributions of the specialists from the Brno institution.
I have been impressed by the wide range of projects that are dealt with.
Some have not been set going yet, they are in the stage of preparation,
some are in a middle-advanced state, and further as, e.g., electron optical
evaluations, reached an advanced stage of progress. It is also very interesting
for me to follow the increasing volume of publications coming from the
Brno institution. After all, it holds true for any kind of research that
if you do not publish the results of your work, you had better throw them
directly into a dustbin. Your colleagues will, most probably, not read
them. I think however the outer world tends to judge an institution according
to the number and quality of topical publications. I think it is a very
good sign for your future publications that at your institution the number
of computers grows as that of tulips. It also makes a deep impression on
me that there has always been a solid basis of fundamental research work
at this institute. For example, electron interference, which at the beginning
seemed to be a technologically uninteresting field, became later - in the
case of Fresnel bi-prism - very important for electron holography. If,
at the beginning, no fundamental research is made, it is not possible to
quickly reach the decisive stage of development. For example, as regards
the metal-insulator-metal structures, we heard a very interesting lecture
of Professor Delong and we saw an excellent demonstration in his laboratory.
This is a case of a twenty-year old patent that suddenly becomes very important.
Well, it is a very interesting situation - you have a mixture of projects:
long-term, medium- term and novel ones that are of inspiration character.
For example, the new table for electron lithography applies some innovated
mechanical principles and in an inventive way makes use, with a remarkable
simplicity, of friction gears. The whole project is very clever and illustrates
the ability of the research workers to go to the utmost simplicity. This
represents a great deal of hard intellectual work but no electron optical
device will ever work at all if its utmost simplicity is not achieved.
If you start to do something that looks quite simple, I think you have
a certain chance that it will work.