C7700 Hamamatsu Photonic Systems, C7700 Datasheet - Page 2

• Manufacturer Part Number: C7700
• Manufacturer: Hamamatsu Photonic Systems

Optical
intensity
1
D-range of 10 000:1 of ultrafast phenomena under single-shot operation
Time
Input Optics
Incident light
SYSTEM CONFIGURATION
FEATURES
*[About a Dynamic Range]
The maximum dynamic range of the streak camera essence is set to
1000:1 by the measurement condition of temporal resolution 5ps, and
is set to 10 000:1 by the measurement condition of temporal-resolution
100ps. With a light intensity, the image intensifier tube, such as an
image intensifier or an image booster, is combined with a streak
camera.
dynamic range of the measurement system. Furthermore, a read-out
camera may also restrict the dynamic range of the measurement
system.
Readout Camera
High dynamic range of 10 000:1*
Temporal resolution of 5 ps*
Effective photocathode size: 17 mm
Simultaneous measurement of light intensity
on temporal and spatial (wavelength) axis
IEEE 488 (GP-IB) control
C4880-21
ORCA
Trigger signal
Space
Photocathode
(light
3
In this case, the image intensifier tube may restrict the
2
Main Unit
Slit
electrons)
Image Intensifier Tube
Image Intensifier
Image Booster
Image Intensifier
Image Booster
Lens
Accelerating electrode
(where electrons are
accelerated)
Sweep circuit
C7700
2
Streak Tube
Sweep electrode
(where electrons are
swept in the direction
from top to bottom)
1000:1
1000:1
5 ps
Temporal Resolution
-
-
Phosphor screen
(electrons
5
Output Optics
High Dynamic Range Measure
4
light)
6
Image Intensifier,
Image Booster
Dual-Scan Cooled CCD Camera C4880-21
10 000:1
Camera head
Mount Table A7703
2000:1
3000:1
2000:1
100 ps
Readout Cameras
Camera head
Streak image
Space
ORCA
Time
POWER
2
Control unit
Control unit
DUAL MODE COOLED CCD CAMERA
APPLICATIONS
[Operating Principle]
The light pulse to be measured is focused onto the photocathode
of the streak tube through the slit, where the photons are con-
verted into a number of electrons proportional to the intensity of
the incident light. These electrons are accelerated and conducted
towards the phosphor screen, and a high-speed voltage which is
synchronized to the incident light is applied. The electrons are
swept at high speed from top to bottom, after which they are bom-
barded against the phosphor screen of the streak tube and con-
verted to an optical image.
When the light intensity of the streak image is very weak, an image
intensifier or an image booster amplifies the low light level streak
image.
Research involving laser fusion lasers, free
electron lasers and various other types of
pulsed lasers
Plasma light emission, radiation, laser ab-
lation, combustion and explosion
Picosecond transient absorption measurement
(Time dependence of absorption is shown below.)
LIDAR, Thomson scattering, time-of-flight
laser ranging
Fluorescence lifetime measurement, time-
resolved Raman spectroscopy
The 266 nm excitation (25 ps, 0.2 mJ,
single shot) of Chrysene in THF (0.5 mmol/l)
OD = 0.1
Frame Grabber
0
GP-IB board
S
T
1
1
1
- S
- T
482 to 489 nm
557 to 581 nm
n
n
absorption
absorption
Time (ns)
2
7
Streak Image
Readout System
(HPD-TA)
Software
Analysis
(IBM PC/AT Compatible)
3
Personal computer
4
2 mm focused,
Streak Image
Analysis Systems
for IBM PC/AT
5