Organize and Share your Electronics the way you want. Sign-Up for a free account now. It takes only 30 seconds!

Quantum dots shrink on-chip lasers to 1μm

Quantum dots shrink on-chip lasers to 1μm

by Julien Happich @ edn-europe.com

Published in Applied Physics Letters under the title “Sub-wavelength InAs quantum dot micro-disk lasers epitaxially grown on exact Si (001) substrates”, the findings from an international team of researchers opens a new route to CMOS-compatible on-chip laser integration.

The researchers designed subwavelength micro-disk lasers (MDLs) as small as 1μm in diameter on exact (001) silicon, using colloidal lithography (dispersing silica colloidal beads as hard masks before etching the prepared QD material layers). The disk region encapsulates five layers of InAs/InGaAs dot-in-a-well (DWELL) structure. The micro-cavity gain medium was grown on a high crystalline quality GaAs-on-V-grooved-Si template with no absorptive intermediate buffers. Under continuous-wave optical pumping (from an external diode laser operating at 532nm), the micro-disk structure lased in the 1.2μm wavelength range, with low thresholds down to 35μW at 10K (cryogenic temperature).

Quantum dots shrink on-chip lasers to 1μm – [Link]

The post Quantum dots shrink on-chip lasers to 1μm appeared first on Electronics-Lab.

Pinned onto

Related Pins

Skill Sunday: Uploading to your Arduino via a Network
Skill Sunday: Uploading to your Arduino via a Network
One Phase Power Meter
One Phase Power Meter
WiFi Toilet Vacancy Sensor
WiFi Toilet Vacancy Sensor
HAL 9000 reimagined as a useless machine
HAL 9000 reimagined as a useless machine
Using the XMEGA Clock System
Using the XMEGA Clock System
An Arduino VU meter for classrooms
An Arduino VU meter for classrooms
DIY Calculator
DIY Calculator
Build your own robotic vacuum from scratch
Build your own robotic vacuum from scratch
An animatronic talking takeout container
An animatronic talking takeout container
Restoring a Xerox Alto day 7: experiments with disk and Ethernet emulators
Restoring a Xerox Alto day 7: experiments with disk and Ethernet emulators
IDE 1.6.12 released with Sierra support and more
IDE 1.6.12 released with Sierra support and more
IoT Propane Tank
IoT Propane Tank
Industry Standard Single-Ended Current Mode PWM Controller
Industry Standard Single-Ended Current Mode PWM Controller
Wifi enabled 8×64  pixel  LED  matrix display
Wifi enabled 8×64 pixel LED matrix display
Arduino Disco Lights
Arduino Disco Lights
PIXIE is an Arduino-based NeoPixel watch
PIXIE is an Arduino-based NeoPixel watch
How to run C programs on the BeagleBone’s PRU microcontroller
How to run C programs on the BeagleBone’s PRU microcontroller
Capture time-lapses with a steel and aluminum camera slider
Capture time-lapses with a steel and aluminum camera slider
The MR-808 is a robotic drum “synthesizer”
The MR-808 is a robotic drum “synthesizer”
HDMI 2.0 Implementation on Kintex-7 FPGA GTX Transceivers
HDMI 2.0 Implementation on Kintex-7 FPGA GTX Transceivers

Top


Shares