In HTML, if I wanted a link to open in a new window, I\'d adopt target=\"_blank\" like this:
I think it's like this
<%= link_to image_tag('img.png'), 'http://www.website.com', target: '_blank' %>
See http://api.rubyonrails.org/classes/ActionView/Helpers/UrlHelper.html#method-i-link_to