The New Quantaurus Series Offers Quick, Easy Measurements of the Fluorescence Lifetime and Quantum Yield of Photoluminescent Materials

BRIDGEWATER, New Jersey, March 1, 2011 - Hamamatsu Photonics has introduced the new Quantaurus series of compact
instruments for measuring the properties of photoluminescent materials. The
new Quantaurus-Tau measures fluorescence lifetimes as short as 100
picoseconds, while the Quantaurus-QY measures quantum yields faster and more
easily than the traditional relative measurement method. The combination of
these two instruments enables a comprehensive characterization of
photoluminescent materials such as fluorescent probes, LED phosphors, organic
metal complexes, OLED materials, and quantum dots. The Quantaurus series can
be used to analyze materials in thin film, powder, solid, or liquid form.
Liquid samples can be cooled down to -196 degrees Celsius.

The Quantaurus-Tau lets users quickly and easily measure the fluorescence
lifetime of photoluminescent materials from sub-nanoseconds to the
millisecond range with single-photon-counting sensitivity. The two available
models cover a spectral range from 300 nm to 800 nm (C11367-11) and from 380
nm to 1030 nm (C11367-12). Operation is simple, and the dedicated software
includes a variety of measurement and analysis functions. Seven LEDs allow
sample excitation from 280 nm to 630 nm. Furthermore, Quantaurus-Tau features
optional add-ons for performing phosphorescence measurements.

The Quantaurus-QY offers a fast, easy way to measure the quantum yield of
photoluminescent materials. It performs absolute measurements and does not
require known reference samples, in contrast to the traditional relative
method. Operation is simple and intuitive, from selecting excitation
wavelengths to making a variety of measurements with various analysis
functions. Analyses include photoluminescence quantum yield measurement,
excitation wavelength dependence, photoluminescence spectrum,
photoluminescence excitation spectrum, and color coordinates. The
Quantaurus-QY is available in two models with different wavelength ranges:
the standard model (C11347-11) covers wavelengths from 300 nm to 950 nm, and
the NIR model (C11347-12) covers the region from 400 nm to 1100 nm.

To view full technical specifications, please download the product
catalog from sales.hamamatsu.com. Information on pricing and delivery
can be obtained by calling Hamamatsu Corporation at +1-800-524-0504. In
Europe, please call freephone +00-800-800-800-88 or send email to
europe@hamamatsu.com.

About Hamamatsu Corporation

Hamamatsu Corporation is the North American subsidiary of Hamamatsu
Photonics K.K. (Japan), a leading manufacturer of devices for the generation
and measurement of infrared, visible, and ultraviolet light. These devices
include photodiodes, photomultiplier tubes, scientific light sources,
infrared detectors, photoconductive detectors, and image sensors. The parent
company is dedicated to the advancement of photonics through extensive
research. This corporate philosophy results in state-of-the-art products
which are used throughout the world in scientific, industrial, and commercial
applications.

Information furnished by Hamamatsu Corporation is believed to be
reliable. However, no responsibility is assumed for possible inaccuracies or
omissions. Specifications are subject to change without notice.

Leo Kohyama, Hamamatsu Corporation, +1-908-231-0960, or Fax: +1-908-231-1218, lkohyama at hamamatsu.com