Date: Sep 23, 2010 Source: (
click here to go to the source)
CHAMPAIGN, ILLINOIS—September 23, 2010—Anothe
r first at ISS: ISS has installed the
first ChronosBH lifetime spectrometer equipp
ed with a supercontinuum laser. The
supercontinuum laser, made by Fianium (
www.fianium.com
, Southampton, United Kingdom)
features several advantages
over the individual lasers o
ffered by pulsed laser diodes:
•
all of the wavelengths from 420 nm up to th
e near infrared are available; the user
selects the desired wavelength
through the ISS software
•
the pulsewidth is less than 5 ps, thus ma
king it an ideal light source for TCSPC
applications
•
up to six different repetition rates are se
lectable from 100 KH
z to 40 MHz; this
features allows for the acquisition of TCSPC data from short decay times to long
decay times using the same light source.
The controls for the superconti
nuum laser parameters are fully
implemented into the Vinci
software utilized for the ISS spectrofluorom
eters: the selection of the excitation
wavelengths; the repetition rate;
the control of the laser inte
nsity. The wavelength selection
is achieved through the acousto-optical tunabl
e filter (AOTF): it en
ables selection of
spectrally narrow (1-10 nm) lines in the ra
nge 400-750 nm. Up to eight simultaneous
wavelengths can be selected.
The ChronosBH is a research-grade time-re
solved spectrofluorometer using the TCSPC
technique acquisition. The instrument featur
es a T-format geometry and full automation
(
http://www.iss.com/fluorescen
ce/instruments/chronosBH.html
). ISS offers with along with the
ChronosBH an extensive line of accessories, in
cluding two, three and four cuvette holders,
Peltier-controlled cuvette holders for rapid temperat
ure changes, cryostat, high pressure cells for
dissociation studies up to 4,000 bar, low pressure
chambers, and fiber optics bundle for in-situ
measurements, etc.
Please visit our web site at
www.iss.com
for a comprehensive list of the available accessories
and to find details about our
entire research-fluorescence product line. Moreover, the
instrument is fully upgradable; the user can star
t with the time-resolved
option and upgrade it
later to steady-state fluorescence.
