Call for papers opens in January 2024

Visa information

Visa Information - The Netherlands

Travelling to the Netherlands. How to apply for a visa:

Additonal visa information
Member countries of the Schengen Area do not need a visa to travel to the Netherlands. For exact information on which countries do NOT require a visa please visit:

If you are travelling to a country outside the EU, the Schengen area and the Caribbean part of the Kingdom, fill in your journey details on the International Air Transport Association website (IATA). You can then see if you need a visa and, if so, what type of visa.

Apply now for your visa
Because the application for a visa can be a lengthy process, we recommend that you begin your visa application process as soon as you have been notified that your abstract has been accepted for presentation. We also recommend that you secure your travel visa before registering for the symposium. Cancellations after the preregistration cutoff can result in a cancellation fee.

Requesting an invitation letter

How to request an invitation letter - for authors and attendees only

  1. Sign in to this site using your SPIE credentials (username and password)
  2. After you are signed in, click on this link to go directly to the SPIE invitation letter request form page
  3. Click on the “Apply” button to begin the invitation letter request form.
  • Complete one form per person (requests for accompanying family members can be included in the same application)
  • Your name must be listed exactly as it appears on your passport. Any differences could lead to delay or denial of your visa
  • Requests are processed based on the order received, and the date of the conference
  • You will receive an email from with a link to download a PDF of your official invitation letter after it is approved and processed. You should also make sure that the sites listed here, are allowed by your organization to ensure you receive the email.
    • Printed invitation letters are mailed by request only. Please allow up to four weeks for delivery
    • SPIE is unable to contact embassies or consulates on behalf of or in support of any individual making arrangements to attend an SPIE event

    How to request an invitation letter - for exhibitors

      To request an invitation letter, if you are an exhibitor at an SPIE event, fill out and submit the Exhibitor Invitation Letter Request Form

      • For exhibitors requiring a letter of invitation from SPIE to obtain a travel visa to participate in the exhibition
      • You must be listed as an exhibitor (or co-exhibitor) of this exhibition or your request will not be processed
      • Requests are processed and prioritized based on the order received and the date of the exhibition (usually within 3 weeks)
      • The invitation letter PDF will be sent via OneDrive with a link to access the Invitation Letter, and by FEDEX if requested
      • SPIE is unable to contact embassies or consulates in support of an individual attempting to attend an SPIE exhibition