![]() We show that a precise nanoparticle geometry is key for a consistent enhancement, with decahedral nanoparticle shapes providing an efficient PL upconversion. This is further corroborated by experiments in which the laser excitation wavelength is tuned across the dark exciton. Through statistical measurements on hundreds of plasmonic cavities, we show that coupling to the dark exciton leads to a near hundred-fold enhancement of the upconverted PL intensity. The optical near-fields of the plasmonic cavities excite the out-of-plane transition dipole of the dark exciton, leading to light emission from the bright exciton at higher energy. Here, we show how plasmonic nano-cavities activate anti-Stokes PL in WSe 2 monolayers through resonant excitation of a dark exciton at room temperature. All types of sewing and sewing abilities are welcome its free, fun, and open to anyone.Anti-Stokes photoluminescence (PL) is light emission at a higher photon energy than the excitation, with applications in optical cooling, bioimaging, lasing, and quantum optics. Members create all sorts of wonderful projects, from botanical-inspired textile art, to winter-tree inspired wreaths. Sign up for free to begin receiving monthly prompts, and challenge yourself to find new and interesting ways to sew to that theme. So take this little bit of sewing knowledge and run with it however you feel inspired!Īnd if inspiration is something you are looking for in your sewing, you might be interested to join my Creative Sewing Challenge. And when your binding is as pretty as the examples above, well its just going to inspire you to use it in many and varied ways according to your project (like binding an embroidery hoop, or joining some handmade bunting together). In this way, it is only visible from the under side of a project or garment.īut hey, these aren’t hard and fast rules (and rules were made to be broken anyhow, right?) As with all things sewing, the creative possibilities are endless. On the other hand, single fold tends to be sewn along one of its edges only, and then folded under and stitched in place again to finish a raw edge. This means, when you stitch the shorter side, it will automatically catch the longer side, and the whole thing is secured with one neat and tidy row of stitches. Look closely and you’ll see one side is ever so slightly bigger than the other, making it overlap by a tiny amount. This is because it can be folded over the edge of a sewing project and sewn in place so the tape can be seen from both sides. ![]() Well, double fold tape can be used to bind raw edges. Double fold binding has the edges folded over AND has been folded in half again.Single fold binding has the edges folded over to the middle.In other words, this one has been folded over one extra time (double fold!)Īnd when I open it up one more time, you’ll see each of those folds has actually created 4 segments. …and when I open it up, it begins to resemble the polka dot binding above. Now lets look at some equally pretty double fold bias tape (haven’t come up with a project for this yet!) As you can see, this tape has been folded over on itself… …and if I open it out, it looks like this – the tape essentially has three segments created by the folds. ![]() Here is some lovely pink polka dot bias tape, which I recently used to embellish my Flamingo Embroidery Hoop (full tutorial here if you’re interested!) This is single fold…. Read on for a simple description of the two, and you’ll never be confused again! But the most common are single and double fold bias tapes. ![]() Some might be fusible, and they all come in different sizes and colours (making them great for decorative finishes too). Have you ever read a sewing tutorial and felt confused over the type of bias binding needed? I have! Really, there are several different types of bias tape the thing they have in common is that they are cut on the bias, so have a slight stretch, and are therefore ideal for finishing raw edges.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |