However, a key problem with most modern lasers is that they emit light at fixed wavelengths. This limitation can be overcome using quantum dots, nanoscale semiconductors that can emit light of ...

The frequency regime lying in the shortwave infrared (SWIR) has very unique properties that make it ideal for several applications, such as being less ...

Research teams led by Prof. PAN Jianwei, LU Chaoyang, HU Yongheng, and others have realized a high-performance single-photon source with an efficiency beyond the scalable linear optical quantum ...

Quantum dot FP lasers have an ensemble of self-assembled QDs inside the cavity as shown in Fig. 1.By simply modulating the laser's injection current, the laser emits a stream of digital data bits ...

These include Light Detection and Ranging (LIDAR), a method for determining ranges and distances using lasers ... In the past few years, colloidal quantum dots—solution-processed semiconducting ...

The application of these quantum dots to semiconductor lasers was proposed in 1982 by then Assistant Professors Yasuhiko Arakawa and Hiroyuki Sakaki. At that time, when the smallest size of even the ...

Colloidal quantum dots (QDs) are semiconductor nanocrystals ... QDs reported previously are often excited by femtosecond pulsed lasers, which have a large size (comparable to a computer tower ...

Quantum dots are nanoscale man-made crystals that have the ability to convert a spectrum of light into different colors. Each dot emits a different color depending on its size. (Image: RNGS ...