CrazyEngineers Archive
Old, but evergreen and popular discussions on CrazyEngineers, presented to you in read-only mode.
@Debasmita Banerjee • 17 Apr, 2016 • 1 like
In recent times, scientists have been working hard to achieve nanophotonics integration in the field of bioscience, in order to artificially develop, flexible and portable technologies to cure physical and semi-physical anomalies. A very recent breakthrough in this regard can be attributed to Christian Koos and his team from the Karlsruher Institutfür Technologie’s Institute of Photonics and Quantum Electronics (IPQ).

For the first time, the group realised a LASER source with an organic gain medium, and have grown the structure on a silicon wafer to create a bio-sensor. This work is worth noting because of its possible applications in the field of medical science, through which a non-invasive diagnosis for patients can be conducted.

Team leader Koos explained that they have gone through a challenging task of incorporating different optical components on a single chip, without hiking the cost. A newly developed sub field, known as silicon photonics depends upon the nanotechnological fabrication process of microelectronic devices, which however scales up the production of inexpensive photonic components. These tiny components are essential tools for information technology and biosensors.

organic_laser
Organic laser on a silicon photonic chip


Though the methodology has developed through years of experiments, integrating a LASER source on a chip was not achievable as the nature of a semiconductor structure works against that of light emitters. When an electron jumps from one energy state to another energy state, the energy is released in the form of heat, rather in the form of vibrations, whose quanta are known as phonons, instead of photons which are necessary to release light.

To observe the required results, KIT researchers have engineered LASER sources in the infrared range. Laboratory processes include the incorporation of silicon nano-waveguides with polymer doped organic die, and the working force comes from a horizontally placed light source. The complete system was able to produce radiation of 1310 nm wavelength and a peak power of greater than 1 Watt per chip. The complete research report was published in the Nature Communications journal.

Source: KIT
5.5k views

Related Posts

@Ashish Nanda · May 11, 2016

Jose Carlos Rubio and his team of researchers from Michoacan’s University of San Nicolas Hidalgo (UMSNH) in Mexico has come up with the world’s first glow-in-the-dark cement after 9 years...
6k views

@ArunSrinivassan · Feb 3, 2012

What is the use of Propeller Shaft in each and every vehicle and also plz tell me what is the difference between Front Wheel , Rear Wheel and Four Wheel...
11.9k views

@Rucha Wankhede · Nov 18, 2017

The other day I had to buy a present for my nephew's birthday, and while strolling down the long aisles of toys of the toy store, I couldn't help but...
7.1k views

@Kaustubh Katdare · Jul 2, 2013

India's first ever blast, flood, earthquake proof building will be ready by 2014 to protect all your 'AADHAAR' information, reports TOI. The data center being built at Bangalore will host...
6.8k views

@TheV · Nov 20, 2010

I always think about how the setup files are made. As I wrote program in C,C++ and JAVA but I don't know how to make icon such that on double...
7k views