not receiving emails

Before I left ESO, I asked helpdesk forwarding my @eso email to a private address. I had checked carefully about the email policy. The emails should keep forwarding for one year after my leave. But a few days ago, I finally realized that the email forwarding was not working at all since April 1, after being noticed by two friends that they had sent emails to me but received no replies.

So if you want to contact me, please email to yanfeng at has been disabled

I hope I haven’t missed any important messages.

Of course, I sent a request to But they said the policy has been changed, the email account would be locked three months after a personnel leaves.

That is really unusual, the sudden change of policy, and the ultra-short buffer time for email switching as well. As I know, many institutes keep email addresses for past employees and students.

Even more unfortunately, I had used the ESO email address in all of my publications. So I am not reachable at all when any readers find my papers interesting.


2010 CLEO/Laser Focus World Innovation Award, Honorable Mention

The 2010 CLEO/Laser Focus World Innovation Award went to NTT Advanced Technology Corporation. TOPTICA received a honorable mention.

TOPTICA Photonics AG – Booth 1321

High-Power Tunable Laser Source for Sodium Spectroscopy and Other Applications

For the creation of a tunable, narrow-linewidth, high-power (30 W), 589 nm yellow laser for guide star, spectroscopy, LIDAR, phototherapy, and other visible and near-IR applications.

What is CLEO/Laser Focus World Innovation Award?

Each year, the CLEO/Laser Focus World Innovation Awards Program honors the most timely, ground-breaking products in the field of laser science. Designed to showcase some of the most significant new products in the field, Innovation Award entries are evaluated on criteria critical to product success: impact, functionality, life expectancy, effect on the optics industry, innovation and patents or trademarks.

I am pleased and proud because I contributed significantly to the development of the technology behind this product.