About The Microscope Bulb

There has been a discovery to produce the most efficient light bulb ever but on a microscopic scale. They call it the microscope bulb. The researchers of the Trinity College, Dublin, have done the discovery. The techniques are that there is significant output of light from quantum dots and this allows the light to be focused and manipulated easily. The findings of this research can be seen in the Institute of Physics Journal of Semiconductor Science and Technology.

 

Dr Yuri Rakovich and Dr John Donegan from Trinity College, Dublin have worked with the researchers at the Universities of Hamburg and Munich. They have placed quantum dots, which is the most efficient light bulb in the world, onto a tiny polymer sphere.

Quantum dots are tiny particles, which are made from certain semi conducting materials. Researchers have known for sometime that quantum dots have several applications and are capable of producing light without wasting any energy as heat. Quantum dots are considered the basic unit of quantum computers- these are computers, which work 10,000 times faster than any of the fastest computer that is in use today. Dr John Donegan’s team has realized that they can make the most efficient quantum dots ever made. By embedding the quantum dots on the microsphere, it can increase the output of light from these dots by a factor of 20. The light that is emitted is focused onto a fine beam, as these structures are spherical and can be moved very easily by the researcher.

 

The Trinity College team, entirely under the microscope, carried out the whole project. They took a polymer microsphere of about 5 microns in diameter (one-twentieth the diameter of human hair). They coated its surface with quantum dots, which was made of cadmium telluride, a semiconductor similar to gallium nitride. Once they coated the surface of the microsphere, the emission of light from the surface was studied and found that it was in different colors- red and green. 

 

The team has been trying to improve this emission of light by creating a tightly focused beam of light. There are many applications for this beam, which was created and can be used in all branches of quantum technology like mobile phones, computer etc. The team is interested in producing this beam by manipulating a single strand of DNA. There have been devices like optical tweezers to do this, but Donegan’s team wishes to create light much finer than ever and which has ease of manipulation. He wishes to use quantum dots in genetic analysis and in sequencing of genes. This increases the ability to handle DNA strands with accuracy and dexterity.

 

A Microscope bulb is used for diagnosis, research, observation, photomicrography, fluorescence microscopy and more. There are several lamps or light sources used in microscopes to provide a high intensity, bright light for best viewing. Microscopes are used to view minute creatures of our earth on your glass slide. The light bulb can get dim or burn out fast. If the bulb needs to be changed, you need to attend to the problem immediately. Some of the popular manufacturers are Nikon, Swift, American Optical, Zeiss, Bausch and Lomb, Olympus, Volpi, Hund, Jena,Philips, Leica and Aristo Light Resources.