optistattm product family
TRANSCRIPT
OptistatTM Product Family
Optical cryostats for spectroscopy
Optistat
N e w l o o k • N e w f e at u r e s • N e w a c c e s s o r i e s • N e w s o f t wa r e
New accessories including a new range
of electronics
Which Optistat is right for you?
Optistat family
The Optistat model of choice will depend on the base temperature, cooling technology and sample environment required for your
experiments. If our standard range doesn’t suit your requirements, Oxford Instruments can also provide you with tailored solutions.
Our user-friendly, compact and efficient Optistat cryostats offer a wide range of options to suit most spectroscopy applications. they provide a wide temperature range (from 1.5 k up to 500 k) while providing excellent optical access.
temperature range cooling technology sample environment
OptistatCF2 2.3 – 500 K Helium or nitrogen Static or dynamic exchange gas
OptistatCF-V2 2.3 – 500 K Helium or nitrogen Vacuum
OptistatDN2 77 – 500 K Nitrogen only Static exchange gas
OptistatDN-V2 77 – 500 K Nitrogen only Vacuum
OptistatSXM 1.6 – 300 K Helium or nitrogen Dynamic exchange gas
OptistatAC-V 12 2.8 – 325 K Cryogen-free Vacuum
OptistatAC-V 14 2.8 – 325 K Cryogen-free Vacuum
OptistatPT-BL 3.5 – 300 K (4 K model) 1.5 – 300 K (1.5 K model)
Cryogen-free Vacuum
OptistatPT-TL 3.5 – 300 K (4 K model) 1.5 – 300 K (1.5 K model)
Cryogen-free Static exchange gas
optic• UV/ visible reflectivity & absorption
• FTIR spectroscopy
•THz spectroscopy
•Photoluminescence
•Electroluminescence
•Raman scattering
•Electrical transport measurements
•Photovoltage/current
•Ultrafast spectroscopy
•SPM, STM, AFM
for magneto-optical
applications, see Spectromag
product guide
typical applications:
Table 1: Advantages and trade offs of each cooling technology for the Optistat range of cryostats
Optistat family
Advantages and trade offs
cryostat type advantages trade offs Product
Helium continuous flow cryostat
•Small size for easy integration into spectrometers
•Low base temperature (2.3 K)•Can be used with nitrogen
•Continuous use of a helium transfer line and helium dewar
OptistatCF2OptistatCF-V2
Helium bath cryostat
•More efficient use of cryogens for measurements lasting more than one day
•Low base temperature (1.6 K)
•Larger physical size and weight OptistatSXM2
Nitrogen bath cryostat
•Small size for easy integration into spectrometers
•Low running cost•No need for external dewar
and transfer tube
•Limited base temperature (77 K) OptistatDN2OptistatDN-V2
cryogen-free cryostat
•No need for liquid cryogen•Ease of use•Low running cost
•Larger physical size and weight•Compressor requires servicing•Higher cost
OptistatAC-V 12OptistatAC-V 14OptistatPT-BL and TL
sample space environment
advantages trade offs Product
static exchange gas (circulating cryogen doesn’t come into the sample space)
•Rapid sample change (via top loading probe)
•Homogeneous sample cooling
•No liquid in the optical beam path
•More optical windows•Larger working distance from
sample to external optics
OptistatCF2OptistatDN2OptistatPT-TL
Dynamic exchange gas (circulating cryogen exiting the heat exchanger flows into thesample space)
•Rapid sample change (via top loading probe)
•Homogeneous sample cooling ideal for low conductivity sample
•Faster cool down times•Cryostat can be operated
in single shot
•More optical windows•Larger working distance from
sample to external optics•Presence of liquid in the
optical beam path
OptistatCF2 dynamic optionOptistatSXM2
Vacuum •Fewer windows in the optical beam path
•Larger sample space•Short working distance
to room temperature
•Slower sample change•Potential for temperature
gradient across the sample
OptistatCF-V2OptistatDN-V2OptistatAC-VOptistatPT-BL
Table 2: Advantages and trade offs for the different sample environments
heliumOptistatCF2
continuous flow helium cryostat, sample in exchange gas
• Wide temperature range:
from 2.3 K to 500 K
• Quick sample change in less
than 5 minutes via top-loading
sample probe
• Superb optical access (f/1) for
measurements requiring light
collection
•Optimised clear beam throughput
(15 mm diameter aperture)
allows a large illumination area
for measurements involving the
detection of low intensity light
•The most economical use of cryogens
on the market: less than 0.55 L/h at
4.2 K using a Low Loss Transfer tube
• Versatile: wide range of sample
holders/rods including liquid cuvette
for liquid samples and simple/precise
height adjust/rotate sample rod
•Compact size allowing easy
integration into commercial
spectrometers
• Electrical measurements via 10-pin
electrical feed wire to heat exchanger
and/or wired on coax connectors
• Can be operated in pull mode (using
a gas flow pump to pull the helium
from a storage dewar to the sample
space) or push mode (by pressurising
the storage dewar)
Optistat family
This helium cryostat is ideal for experiments requiring high sample throughput
and low conductivity samples.
specifications
Model OptistatCF2 static used in
‘pull’ mode
OptistatCF2 static used in
‘push’ mode
OptistatCF2 dynamic in ‘pull’ mode
OptistatCF2 dynamic used in ‘push’ mode
Temperature range 2.3 – 500 K* 4.2 – 500 K* 2.3 – 500 K*1.6 – 500 K* in single shot
4.2 – 500 K*
Temperature stability ± 0.1 K (measured over 10 min period)
Maximum sample space 20 mm diameter
Sample holder dimensions 19 mm wide x 30 mm long (optical sample holder version has a 15 mm aperture)
Cool down from ambient to 4.2 K (mins)
35
All specifications refer to the base model cryostat with 2 sets of Spectrosil B window used with an LLT transfer tube, EPS 40 (40 m3/hr helium pumping system) and a MercuryiTC temperature controller. *For 500 K operation, high temperature sapphire inner windows are required.
the lowest helium consumption
on the market
• Two models to choose from: static or
dynamic exchange gas. (see p3)
For more information please visit:
www.oxinst.com/optistatcf2
OptistatCF-V2
continuous flow helium cryostat, sample in vacuum
• Wide temperature range:
from 2.3 K to 500 K
• Large sample space enabling studies
of sample with a wide range of size
and geometry
• Superb optical access (f/0.9)
for measurements requiring
light collection
•Optimised clear beam throughput
(23 mm diameter aperture)
allows a large illumination area
for measurements involving the
detection of low intensity light
•The most economical use of cryogens
on the market: less than 0.45 L/h at
4.2 K using a Low Loss Transfer tube
• No cold windows enabling the use of
any window material above 300 K
• Demountable radiation
shield windows to maximise
transmission intensity
• Can be operated in pull mode
(using a gas flow pump to pull the
helium from a storage dewar to
the sample space) or push mode
(by pressurising the storage dewar)
spectro
Optistat family
This helium cryostat is well suited for experiments requiring a large sample space
and minimum number of windows in the optical beam path (reducing reflective
losses). It is also a very versatile instrument as its tail is interchangeable between
MicrostatHe2 and MicrostatHe2 Rectangular tail, ideal for microscopy and
magneto-optical Kerr effect applications.
specifications
Model OptistatCF-V2 used in ‘pull’ mode OptistatCF-V2 used in ‘push’ mode
Temperature range 2.3 – 500 K 4.2 – 500 K
Temperature stability ± 0.1 K (measured over 10 min period)
Maximum sample space(space within radiation shield)
30 mm wide x 58 mm long
Sample holder dimensions 20 mm wide x 50 mm long (optical sample holder version has a 12.5 mm aperture)
Sample change time (mins) 60
Cool down from ambient to 4.2 K (mins)
10
• Electrical measurements via
10-pin electrical feed wire to
heat exchanger and/or wired
on coax connectors
•Compact size allowing easy
integration into commercial
spectrometers
All specifications refer to the base model cryostat with 2 sets of Spectrosil B window used with an LLT transfer tube, EPS 40 (40 m3/hr helium pumping system) and a MercuryiTC temperature controller.
the lowest helium consumption
on the market
For more information please visit:
www.oxinst.com/optistatcfV2
nitrogenOptistatDN2
Nitrogen bath cryostat, sample in exchange gas
This nitrogen cryostat is ideal for experiments which require 77 K base temperature,
high sample throughput and for samples which are difficult to cool by conduction.
Its small footprint is ideal in laboratory where space is limited. It doesn’t require
any external dewar or transfer tube.
Optistat family
• Wide temperature range:
from 77 K to 500 K
• Quick sample change in less
than 5 minutes via top-loading
sample probe
• 15 hours cryogen hold time before
refills required providing the
convenience of a full working
day operation
• Superb optical access (f/1)
for measurements requiring
light collection
• Electrical measurements via 10-pin
electrical feed wire to heat exchanger
and/or wired on coax connectors
• Optimised clear beam throughput
(15 mm diameter aperture)
allows a large illumination area
for measurements involving the
detection of low intensity light
• Versatile: wide range of sample
holders/rods including liquid cuvette
for liquid samples and simple/precise
height adjust/rotate sample rods
•Compact size allowing easy
integration into commercial
spectrometers
smallest footprint.500 k now available
as standard
specifications
Temperature range 77 – 500 K*
Temperature stability ± 0.1 K (measured over 10 min period)
Maximum sample space 20 mm diameter
Sample holder dimensions 19 mm wide x 30 mm long (optical sample holder version has a 15 mm aperture)
Cool down from ambient to 77 K (mins) 25
Liquid nitrogen capacity 1.2 L
Hold time at 77 K ≥ 15 hours
For more information please visit:
www.oxinst.com/optistatDN2
*For 500 K operation, high temperature sapphire inner windows are required.
nitrogennitro
OptistatDN-V2
Optistat family
This nitrogen cryostat is ideal for experiments which require 77 K base temperature,
a large sample space and a minimum number of windows in the optical beam path
thus reducing reflective losses.
• Wide temperature range:
from 77 K to 500 K
• Large sample space enabling studies
of sample with a wide range of size
and geometry
• 15 hours cryogen hold time before
refills required providing the
convenience of a full working
day operation
• Superb optical access (f/1)
for measurements requiring
light collection
• Electrical measurements via
10-pin electrical feed wire to
heat exchanger and/or wired
on coax connectors
• Optimised clear beam throughput
(35 mm diameter aperture)
allows a large illumination area
for measurements involving the
detection of low intensity light
• No cold windows enabling the use
of any window material above 300 K
•Compact size allowing easy
integration into commercial
spectrometers
smallest footprint.Large sample space
Nitrogen bath cryostat, sample in vacuum
specifications
Temperature range 77 – 500 K
Temperature stability ± 0.1 K (measured over 10 min period)
Maximum sample space 20 mm diameter
Sample holder dimensions 20 mm wide x 50 mm long
Sample change time (mins) 60
Cool down from ambient to 77 K (mins) 20
Liquid nitrogen capacity 1.2 L
Hold time at 77 K ≥ 15 hours
For more information please visit:
www.oxinst.com/optistatDNV2
HELIUMOptistatSXM2
low vibration helium bath cryostat, sample in exchange gas
This high stability helium bath cryostat is ideal for low-vibration optical spectroscopy
and nano-scale microscopy. It offers a low base temperature (1.6 K), low levels of
vibration and fast sample change. The sample is cooled by a dynamic exchange gas
fed from an integral liquid helium reservoir. Its small footprint is ideal in laboratory
where space is limited. It doesn’t required any external dewar or transfer tube.
Optistat family
• Wide temperature range:
from 1.6 to 300 K
•Excellent control and stability of the
sample temperature enabled using
the dynamic exchange gas principle
• Low vibration design for applications
requiring high levels of mechanical
stability including Scanning Probe
Microscopy (SPM), Near-field
Scanning Optical Microscopy
(NSNOM) and Atomic Force
Microscopy (AFM). The large
sample space (49 mm) enables
the integration of probe heads
•Quick sample change in less
than 5 minutes via top-loading
sample probe
• Efficient cryogenic design provides
the convenience of consistent low
temperature operation over
a working day
• Generous optical access (f/2.2)
for the radial windows
• Versatile: wide range of sample
holders/rods including liquid cuvette
for liquid samples and simple/precise
height adjust/rotate sample rod
specifications
Temperature range 1.6 – 300 K
Temperature stability ± 0.1 K (measured over 10 min period)
Maximum sample space 49 mm diameter
Sample change time (mins) 5
Cool down from ambient to 4.2 K (mins) 25
Liquid helium capacity 4 L
Hold time at 4.2 K ≥ 10 hours
For more information please visit:
www.oxinst.com/optistatsXM2
•Compact design for use on
optical tables
• Electrical measurements via
10-pin electrical feed wire to heat
exchanger and/or wired on coax
connectors
No liquid nitrogen used to minimise
vibration
HELIUMCRYOFREE
OptistatAC-V
Optistat family
This cryostat is capable of achieving sample temperatures as low as 2.8 K without
the need for liquid helium. This brings significant benefits in terms of running cost
and ease of use.
• Wide temperature range:
from 2.8 K to 325 K
• Two models to choose from
depending on your cooling power
requirements
• Low vibration using a Pulse Tube
Refrigerator. Typical displacement
amplitudes on the second stage
heat exchanger in the radial
and axial directions are typically
7 and 12 micrometers respectively
• Large sample space enabling studies
of sample with a wide range of size
and geometry
• Low running costs
• Optimised clear beam throughput
(12.7 mm diameter aperture)
allows a large illumination area
for measurements involving the
detection of low intensity light
• Electrical measurements via
10-pin electrical feed wire to
heat exchanger
No liquid helium required and easy
to use2.8 k cryofree® cryostat, sample in vacuum
specifications
Model OptistatAC-V 12 OptistatAC-V 14
Temperature range 2.8 – 325 K
Temperature stability ± 0.5 K (measured over 10 min period)
Sample holder dimensions 20 mm wide x 50 mm long
Cool down from ambient to 4 K (mins) 90 60
Typical cooling power (W) 0.25 [email protected] K10 W@65 K
0.5 [email protected] K25 W@65 K
f number 2.4
Power consumption (kW)Air/water cooled compressor
3.5/3.3 5.3/4.8
Mains power requirements 200, 208/230 VAC 1 phase, 60 Hz
200, 220/240 VAC 1 phase, 50 Hz
200, 220/230 or 460 VAC 3 phase, 60 Hz
200/220 or 380/420 VAC 3 phase, 50 Hz
Magnet options available.
For more information please visit:
www.oxinst.com/optistatac-V
HELIUMOptistatPT
1.5 k cryofree® optical cryostat sample in vacuum or exchange gas
This cryofree-cryostat achieves temperatures down to 1.5 K without the need for
liquid helium. It is the cryostat of choice for applications such as detector cooling
requiring low vibration, a low base temperature and a large sample space.
Optistat family
• Wide temperature range:
from 1.5 to 300 K.
4 K base temperature models
are also available
• Versatile: sample environment
available as vacuum or exchange gas
• Top-loading and bottom-loading
systems available
• Fast cool down time:
1.5 K in less than 6 hours
• Low vibration using a Pulse Tube
Refrigerator. The rotary valve in the
cold head directs the helium gas
in and out the expansion tubes
dropping the temperature to
2.8 K without the use of displacers
• Electrical measurements via
10-pin electrical feed wire to
heat exchanger and/or wired
on coax connectors
specifications
cryostat type BL-4 BL-1.5 tl-4 tl-1.5
Temperature range 3.5 – 300 K 1.5 – 300 K 3.5 – 300 K 1.5 – 300 K
Sample loading Bottom-loading Top-loading
Sample environment Vacuum Exchange gas
Sample space size 50 mm or 100 mm 30 mm or 50 mm
PTR model SHI 1W cooling power at 4 K
System cool down <4 hours <6 hours <4 hours <6 hours
Compressor Water cooled, 3 phase, 8.5 kW
Low base temperature and easy to use
Magnet options available.
For more information please visit:
www.oxinst.com/optistatPt
HELIUMoptic
The Optistat System
Optistat family
system components designed for optimum cryostat performance
sample holder and rod options
We offer two types of sample holders.
The plain sample holder is used for
reflection experiments and the optical
one for transmission.
For liquid samples, a liquid cuvette
sample holder is available.
with the new Mercury electronics and oxsoft iDk software, you have
new levels of control! find out more at www.oxinst.com/mercuryfull system integration and control
New intelligent cryogenic environment controller
Easy monitoring and control of the
sample stage
The MercuryiTC controller combines
several instruments into one allowing
temperature control at the heat
exchanger and gas flow control as
well as an extra sensor channel for
thermometry measurement directly
at the sample stage. Everything can
be accessed through touch screen
front panel or remotely via Labview
compatible Oxsoft IDK software.
Example OptistatCF2: You can control
the temperature with a sensor and
heater at the heat exchanger, monitor
and control the gas flow, AND have an
extra sensor channel to measure sample
temperature.
New Oxsoft IDK instrument development kit software
With the new Oxsoft IDK, you have
new levels of control. You can design
remote control and configuration
programs and integrate your system
into your preferred experiment control
architecture.
Liquid cuvette, optical and plain sample holders.
For exchange gas cryostats, we can
supply sample rods allowing a precise
position of your sample.
The simple height adjust and rotate
sample rod provides sliding adjustment
with locking screws to hold a fixed
position. The range of vertical motion is
32 mm. Positioning accuracy os 0.5 mm
(height) and 1o (rotation).
The precision height and adjust rotate
sample rod provides height adjust with
a resolution of 10 µm and a goniometer
for setting the rotation angle with a
resolution of 12 minutes.
From left to right, precision height and adjust rotate and standard sample rods. Can be supplied with double sample holder for reference measurements.
spectro
www.oxford.instruments.com/optistat for more information
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Nanoscience
For more information please email:
uk
Abingdon, Oxfordshire
Tel: +44 1865 393 200
china
Shanghai
Tel: +86 21 6490 8280
Germany
Wiesbaden
Tel: +49 6122 937 171
italy
Pieve Emanuele, Milan
Tel: +39 335 7378794
Japan
Tokyo
Tel: +81 3 5245 3261
usa
Concord, MA
Tel: +1 978 369 9933
www.oxford-instruments.com
Cryogenic spares and accessories
On the Optistat range of optical cryostats, all windows are demountable and may be
exchanged by the customer at a later date for measurements over different regions of the
optical spectrum. Up to five sets of windows can be provided (four radial; one axial). We
can provide ‘wedge’ (non-parallel faces) windows and anti-reflection coatings, to limit the
reflection of windows. The materials selected will be determined by the wavelength and
intensity of the radiation and whether or
not beam polarisation is required.
Wav
e length
(µm)
.3
. 4. 5 .6
.7
.8
.9
1
2
3
45
67
8
9
10
20
30
40506070
80
90
100
200
300
400
500
600
70
080
0
900
1000
Wavenumbers
(cm-1 )
25,00015,000
10,000
2,50
01,50
0
1000250
150
100
25
15
10
ULTRA- VI O LE TV IS I BL E
NEA RI R
MID
IRFA
RIR
EXTREMEIR
Spectrosil B
Spectrosil WF
Sapphire
Calcium Flouride
Crystalline Quartz
Polypropylene
KRS 5
Zinc Selenide
Polythene
MylarTM
Crystalline Quartzbelow 80 K
Sapphirebelow 80 K
Spectrosil B
Spectrosil WF
Sapphire
Calcium Flouride
Crystalline Quartz
Polypropylene
KRS 5Zinc Selenide
Polythene
Mylar
TM
Crystalline Quartz below 80 K
Sapphire below 80 K
Polypropylene
oiDirect cryospares
We offer an extensive range of
accessories for your cryostats. Please visit
www.cryospares.com to find out more.
Wav
e length
(µm)
.3
. 4. 5 .6
.7
.8
.9
1
2
3
45
67
8
9
10
20
30
40506070
80
90
100
200
300
400
500
60
07
00
80
0
90
0
1000
Wav
enumbers(cm
-1 )
25,00015,000
10,000
2,5
00
1,5
00
1000
250
150
100
25
15
10
ULTRA- VI O LE TV IS I BL E
NEARI R
MID
IRFA
RIR
EXTREMEIR
Spectrosil B
Spectrosil WF
Sapphire
Calcium Flouride
Crystalline Quartz
Polypropylene
KRS 5
Zinc Selenide
Polythene
MylarTM
Crystalline Quartzbelow 80 K
Sapphirebelow 80 K
Spectrosil B
Spectrosil WF
Sapphire
Calcium Flouride
Crystalline Quartz
Polypropylene
KRS 5Zinc Selenide
Polythene
Mylar
TM
Crystalline Quartz below 80 K
Sapphire below 80 K
Polypropylene
extensive choice of windows to suit your experiment’s needs exchangeable
windows