Quantumwell

Everything we create is designed by a team of experts, academics, researchers, and specialists to make sure you get the confidence you need, and your child gets the learning and growth they deserve.

Everything we create is designed by a team of experts, academics, researchers, and specialists to make sure you get the confidence you need, and your child gets the learning and growth they deserve.

Lovevery products are made with durable, sustainable, and organic materials that are designed to be safe for your child and made to last, so you can have peace of mind while they enjoy independent play.

Semiconductorlaser

While continuously operating, room-temperature devices are normally limited to output power levels in the lower milliwatt region (although hundreds of milliwatts can be generated in exceptional cases), hundreds of milliwatts are easily possible with liquid-nitrogen cooling. Even at room temperature, watt-level peak powers can be achieved by using short pump pulses.

DFBlaser

Lovevery products are made with durable, sustainable, and organic materials that are designed to be safe for your child and made to last, so you can have peace of mind while they enjoy independent play.

Our award-winning products and guidance support your child's brain development at each important stage—so they can play, learn, and grow to be their best selves.

While most semiconductor lasers emit in the nearinfrared region, quantum cascade lasers (QCLs) emit in the midinfrared, with wavelengths between a few microns up to more than 10 µm, sometimes even many tens of microns (for optical frequencies in the terahertz region).

量子级联激光器

Lovevery products are made with durable, sustainable, and organic materials that are designed to be safe for your child and made to last, so you can have peace of mind while they enjoy independent play.

Everything we create is designed by a team of experts, academics, researchers, and specialists to make sure you get the confidence you need, and your child gets the learning and growth they deserve.

Science 264 553 1994

Quantumdotlaser

Wouldn’t it be nice if parenthood came with an instruction manual? The Play Kits by Lovevery aren't just boxes of developmental and sensory toys for your baby, toddler, or big kid. They're paired with a comprehensive support system of week-by-week and toy-by-toy guidance. You'll love the confidence that comes from expert developmental information, easy-to-follow tips, and fun playtime ideas.

Our award-winning products and guidance support your child's brain development at each important stage—so they can play, learn, and grow to be their best selves.

Instead of interband transitions (conduction band to valence band), QCLs rely on intersubband transitions between the sublevels of quantum wells with a much smaller photon energy. In order to more efficiently utilize the electric power and generate a higher gain, a cascade of such transitions is used, where electrons can tunnel from the lowest level of one quantum well to the upper laser level of the next quantum well. The figure shows the electron energy versus position in a region with three quantum wells, where one electron going through the structure can contribute three laser photons.

Our award-winning products and guidance support your child's brain development at each important stage—so they can play, learn, and grow to be their best selves.

Perhaps the most important applications for quantum cascade lasers will be spectroscopy of trace gases (e.g., the detection of air pollution). Besides the suitable wavelength range, QCLs usually feature a relatively narrow linewidth and good wavelength tunability, making them very suitable for such applications.

Lovevery products are made with durable, sustainable, and organic materials that are designed to be safe for your child and made to last, so you can have peace of mind while they enjoy independent play.