Unable to load jquery plugins in Ember

First of all: I already tried this answer: Using jquery in Ember-cli which seems to be the canonical way of adding a jQuery plugin to ember.

I was following this tutorial: http://ift.tt/1BbHrLy

I installed the plugins using bower, and then added the imports to Brocfile.js.

Here's my Brocfile.js:

/* global require, module */

var EmberApp = require('ember-cli/lib/broccoli/ember-app');

var app = new EmberApp({
  compassOptions: {
    outputStyle: 'expanded'
  }
});

app.import('bower_components/ember-uploader/dist/ember-uploader.js');
app.import('bower_components/moment/moment.js');
app.import('bower_components/jquery.inputmask/dist/jquery.inputmask.bundle.min.js');

module.exports = app.toTree();

The components are all correctly located at their import paths thanks to bower.

And here's the component at components/input-mask.js:

import Ember from 'ember';

export default Ember.TextField.extend({
  initializeMask: function() {
    var mask = this.get('mask');

    this.$().inputmask(mask, {
      onBeforeMask: function(value) {
        if (mask === 'mm/dd/yyyy') {
          return moment(new Date(value)).format('L');
        }
      }
    });

    // The input mask changes the value of the input from the original to a
    // formatted version. We need to manually send that change back to the
    // controller.
    this.set('value', this.$().val());
  }.on('didInsertElement')
});

But in Chrome's console I get the error: Uncaught TypeError: undefined is not a function for this.$().inputmask.

Am I missing something else to import a plugin to jQuery?