Varying in size from just 3.5 to 50 μm, the dimensions of the graphene microstructures developed by UIUC put them right in the middle of a range of electronic devices, including various types
of photodetectors, nano antennas, and other sub-miniature components that were once only the domain of silicon - based products.
«Making a stretchable array
of photodetectors was easy — that's what we do.
KIT researchers have now developed a novel type
of photodetector that needs far less space than conventional ones.
The first demonstration of the technique was used to image the natural nanostructure
of the photodetector itself.
Not exact matches
The high - speed
photodetector, called PIPED (Plasmonic Internal Photoemission Detector), is now presented by Mühlbrandt as first author, together with colleagues
of KIT and ETH Zurich, in the Optica journal under the heading «Silicon - Plasmonic Internal - Photoemission Detector for 40 Gbit / s Data Reception.»
The newly developed
photodetectors, the smallest
photodetectors worldwide for optical data transmission, can be used for integrated optical circuits that significantly enhance the performance
of optical communication systems.
The materials would be used for infrared lasers, for
photodetectors or for innovative LEDs in the infrared range, for example, since the physical properties
of germanium are significantly changed by these additives.
Instead
of making a single curved lens to focus light onto a flat surface, they built a camera packed with tiny lenses, each connected to an individual
photodetector.
Because the metal coatings absorb a lot
of light, reflecting only a narrow set
of wavelengths, Capasso suggests that they could also be incorporated into optoelectronic devices like
photodetectors and solar cells.
«Each small eye, composed
of a microlens and a microscale
photodetector, is a separate imaging system, but when they are all taken together, the camera can take a clear picture, with just one snap,
of nearly 180 degrees.
To do so they made the atoms in the sample vibrate by shining a laser beam through a small hole in the
photodetector, which was placed right on top
of the sample.
They then measure the transmitted energy with a
photodetector that can sense the presence or absence
of light, but has no spatial resolution.
Photodetectors are almost ubiquitous, found in cameras, cell phones, remote controls, solar cells, and even the panels
of space shuttles.
Increasing the efficiency
of light - to - electricity conversion has been one
of the primary aims in
photodetector construction since their invention.
Physicists at the University
of California, Riverside have developed a
photodetector — a device that senses light — by combining two distinct inorganic materials and producing quantum mechanical processes that could revolutionize the way solar energy is collected.
In the study, black phosphorus was also able to act as an efficient and highly - responsive detector
of light, extending the wavelength range over which conventional silicon - based
photodetectors can operate.
Thus, one can split off the light that forms the lower - frequency end
of the comb using a mirror that only reflects longer - wavelength light but passes shorter wavelengths, then send it through the doubling crystal, and finally direct both it and the light
of the higher - frequency end
of the comb onto the same
photodetector.
This unique combination
of silicon
photodetectors and nanomaterials allowed the Illinois research team to create a point - and - shoot color - polarization camera.
Changes in the light's direction can be measured with a
photodetector and converted into a measure
of physical force.
In our approach, stretchable
photodetectors and OLEDs are fabricated directly on a three - dimensionally micro-patterned stretchable substrate composed
of curvilinearly connected bumps and valleys; this structure allows for efficient absorption
of stretching strain.
Some examples
of stretchable ultraviolet (UV), visible, and infrared (IR)
photodetectors and organic light - emitting diodes (OLEDs) which have stretchability in uniaxial and multiaxial directions are demonstrated by adopting a unique geometric engineering
of the layers in the devices.
Rational Design and Synthesis
of Polymeric Semiconductors for High Performance Organic Photovoltaics and
Photodetectors
LIGO's optics system
of lasers, mirrors and
photodetectors have also been engineered with incredible precision.
In a collaboration led by CNIT — a consortium
of Italian universities and national laboratories focused on communication technologies — researchers from AMO GmbH, Ericsson, Nokia Bell Labs, and Imec have developed graphene - based
photodetectors and modulators capable
of receiving and transmitting optical data faster than ever before.
This will make the combined light from the two arms get out
of phase with each other, resulting in some
of the laser light reaching the
photodetector.
The low - and intermediate - mass YSOs HH 46, TMR 1, IRAS 15398 - 3359, DK Cha, NGC 7129 FIRS 2, and NGC 1333 IRAS 2A were observed with the
Photodetector Array Camera and Spectrometer (PACS) in four transitions
of OH and two [OI] lines.
The
photodetector array camera and spectrometer (PACS) aboard the Herschel Space Observatory allows imaging observations in the far infrared at unprecedented resolution, i.e. at better than 6» to 12» over the wavelength range
of 60 -LCB- \ mu -RCB- m to 210 -LCB- \ mu -RCB- m. Together with the results from ground - based observations, these spatially resolved data can be modelled to determine the nature
of the debris and its evolution more reliably than would be possible from unresolved data alone.
Plastic Logic, the leader in the development and industrialisation
of flexible organic electronics, and ISORG, the pioneer in organic
photodetectors and large area image sensors in printed electronics, won the award for their revolutionary large area flexible image sensor.
The collaboration is based on the deposition
of organic printed
photodetectors (OPD), pioneered by ISORG, onto a plastic organic thin - film transistor (OTFT) backplane, developed by Plastic Logic, to create a flexible sensor array.
Combined with ISORG's unique organic
photodetector technology, it allows the creation
of conformable, large area image sensors, which are thinner, lighter, flexible and more robust than traditional approaches.