Femtosecond

  • April 2020
  • PDF

This document was uploaded by user and they confirmed that they have the permission to share it. If you are author or own the copyright of this book, please report to us by using this DMCA report form. Report DMCA


Overview

Download & View Femtosecond as PDF for free.

More details

  • Words: 1,418
  • Pages: 4
Femtosecond Streak Cameras Synchroscan FESCA C6860

-

-

Synchronous Scan 500 fs Temporal Resolution

100

200

300

400

(ch)

▲ Streak image and measured intensity profile of light pulses from a TiSa laser measured with the Synchroscan FESCA

FESCA-200 C6138

-

-

Single Shot 200 fs (typ.) Temporal Resolution

▲ Streak image and intensity profile of light pulses from a CPM ring dye laser measured with the FESCA-200

Common Features

• Ultra-high sensitivity (detection of single photons) • IEEE-488 (GP-IB) control

Synchronous Scan 500 fs Temporal Resolution SYNCHROSCAN FESCA (C6860) APPLICATIONS ●Research of high repetition lasers ●Optical soliton communications response measurement with quantum devices ●Luminescence lifetime measurements

OPTIONS

The newly developed Synchroscan FESCA achieves an ultrahigh temporal resolution at a high repetition frequency of 75 to 100 MHz, synchronizing with repetitive optical phenomena. The integration of such repetitive phenomena makes it possible to detect and measure extremely weak signals in the IR region of up to 1600 nm using an S-1 streak tube. Used in combination with the HPD-TA Streak Image Readout System, it provides full remote control of streak camera functions via a GPIB interface.

● Synchronous Blanking Unit M6858 (in conjunction with M6861) Synchroscan frequency .. Factory set within a range of 75 to 100 MHz Horizontal shift width ....... 2.5 mm or 11 mm (at phosphor screen) ● Slow Single Sweep Unit M6863 Temporal resolution .......... Better than 50 ps (fastest range) Sweep range ................................................... 5 ns to 10 ms Trigger delay .......................... Approx. 45 ns (fastest range) Trigger signal input ............................................... ±5 V/50 Ω Trigger jitter ........................... Less than temporal resolution Maximum sweep repetition frequency .................. 2 MHz max. (fastest range)

SPECIFICATIONS 105

103 S-1 102

101

100

10-1

10-2

200

400

600

800

1000

1200

1400

1600

Wavelength (nm)

Fig. 1 Spectral response characteristics

DIMENSIONAL OUTLINE (Unit: mm) 265

124.4

290

● Utility Line voltage ....................................... 100/117/220/240 VAC Power consumption ..................................... Approx. 250 VA Operating temperature ................................... +10 to +30 °C Operating humidity .. Less than 70% (with no condensation)

S-20 (C6860)

160

● Synchroscan Unit M6861 Temporal resolution ........ Better than 500 fs (at the fastest sweep range not including laser jitter) Sweep time ..................... 50 ps to 1/6 f (f : synchroscan frequency) (50 ps/100 ps/200 ps/500 ps/1 ns/ 1.5 to 2 ns/FOCUS) Dynamic range ................ 1 : 1000 (at the fastest sweep range) Trigger signal input ......... 0 to +10 dBm Synchroscan frequency .. Selectable within a range of 75 MHz to 100 MHz Synchronous frequency range ±0.2 MHz

S-20 (C6138)

104

Radiant sensitivity (µA/W)

● Streak Tube C6860 Spectral response characteristics (Fig. 1) ........................ 200 to 850 nm (S-20) 300 to 1600 nm (S-1) Effective photocathode size ................................... 2.1 mm Phosphor screen size ............................................. 18 mm Image magnification .................................................... 1 : 5.3

225 265 306

470

188±2

Single Shot 200 fs (typ.) Temporal Resolution FESCA-200 (C6138) APPLICATIONS ●Research of the process of energy relaxation of quantum well semiconductors ●Research of the dynamics of chemical reactions in the femtosecond region ●Research of the dynamics of ultrafast laser diodes, ultrafast optical logic devices, etc. ●Diagnosis of femtosecond lasers

The FESCA-200 is an ultrafast streak camera with a temporal resolution of 200 femtoseconds (typ.). It is designed for use with single-shot or slow-repetitive phenomena. It can analyze the process of energy relaxation and the dynamics of chemical reaction in the femtosecond region in combination with femtosecond pulse laser. Used in combination with the HPD-TA Streak Image Readout System, it provides full remote control of streak camera functions via a GPIB interface.

SPECIFICATIONS

● Image Intensifier V2697U-04 Photocathode ................................................................ S-20 Effective photocathode size .................................... 18 mm Phosphor screen ........................................................... P-20 Effective phosphor screen size ............................... 18 mm Luminous gain ............................................................... 104 ● Utility Line voltage ....................................... 100/117/220/240 VAC Power consumption ..................................... Approx. 250 VA Operating temperature ................................... +10 to +30 °C Operating humidity .. Less than 70% (with no condensation)

770fs

DIMENSIONAL OUTLINE (Unit: mm) 128.4±3

305±5

A1976-01

350±3

● Main body (patent pending Japan 3-071552) Temporal resolution ............ 200 fs (better than 300 fs) typ. (at the fastest sweep range) Effective phosphor screen size .................................. Time axis=Approx. 10 mm Spatial axis=Approx. 9 mm Sweep time/full screen (10 mm) .................................. 20 ps, 50 ps, 100 ps, 500 ps Trigger jitter ............................................... Less than ±20 ps Trigger delay .................. 30 ns (at the fastest sweep range) Maximum sweep repetition frequency ....................... 100 Hz Operating mode .............................................. Focus/Streak Trigger input • Maximum input voltage .................................... ±5V/50 Ω • Maximum input repetition frequency .................... 150 MHz • Trigger level ...................................................... -1 to +1 V

▲ This streak image, taken with the FESCA-200, was used to measure Cherenkov radiation. LINAC was used to generate an electronic pulse, which, in contact with the air, produced the Cherenkov radiation. Photo courtesy of Dr. Mitsuru Uesaka, Associate Professor, Nuclear Engineering Research Laboratory, Faculty of Engineering, University of Tokyo.

160±1

● Streak Tube C6138 Spectral response characteristics (Fig. 1) ........................ 280 to 850 nm (S-20) Effective photocathode size ...................................... 3 mm Phosphor screen size ............................................. 18 mm Image magnification ...................................................... 1 : 3

104.5±0.5 279±1

330±3

148±2 (F-mount)

A2886

SYSTEM CONFIGURATION Frame Grabber

Streak Image Analysis Software

Video output (Video CCD Camera)

1 Input optics

Streak Image Analysis Systems for IBM® PC/AT

3 Readout system (HPD-TA)

2 Output format Cooled digital camera C4742-95 Camera head Control unit

Personal computer (IBM PC/AT Compatible)

Lens output Femtosecond Streak Camera GP-IB board

1 Input optics • Input optics A1976-01 Spectral transmittance ..................... 200 to 1600 nm Image magnification .......................................... 1 : 1 Effective F number ................................................. 5 Slit width ................................................... 0 to 5 mm Slit width reading precision ............................... 5 µm • Mirror optics A6856 Refractive spectral range ................. 200 to 1600 nm Image magnification .......................................... 1 : 1 Effective F number ................................................. 4 Slit width ................................................... 0 to 5 mm Slit width reading precision ............................... 5 µm

2 Output formats • Lens output for Cooled Digital Camera C4742-95 Magnification .......................... 1 : 0.7 Effective F number .................... F/2.0 F-mount • Video output Signal format .......... CCIR or RS-170 Coupling method ............ Fiber optics Resolution ..................... 768 × 493 or 756 × 581 pixels

3 Readout system * • HPD-TA The HPD-TA (Temporal Analyzer) is a high-performance digital data acquisition and control system specifically designed to read out images from the Hamamatsu streak camera’s phosphor screen. It enables precise, quantitative acquisition and pre-analysis of two dimensional streak data that includes photon counting plus a full range of data correction and calibration possibilities. It possible to select the best camera for a given streak configuration and application. The camera is connected to an IBM-compatible PC/AT via a frame grabber board that can support real-time data transfer. The HPD-TA allows the remote control of the femtosecond streak camera via GPIB interface. The entire system is controlled through a powerful but userfriendly software application that runs on a Microsoft Windows platform.

*

® A read out system based on the computer is also available. Please consult with our sales office for more details.

ISO 9001/ISO 13485 EN 46001 Certificate: 09 105 79045

★ ★ ★ • •

IBM is a registered trademark of IBM Co. Windows is a trademark of Microsoft Corporation in the U.S.A. is a registered trademark of Apple Computer, Inc. Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office. Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications and external appearance are subject to change without notice.

© 1999 Hamamatsu Photonics K.K.

Homepage Address http://www.hamamatsu.com HAMAMATSU PHOTONICS K.K., Systems Division 812 Joko-cho, Hamamatsu City, 431-3196, Japan, Telephone: (81)53-431-0124, Fax: (81)53-435-1574, E-mail:[email protected] U.S.A. and Canada: Hamamatsu Photonic Systems: 360 Foothill Road, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1)908-231-1116, Fax: (1)908-231-0852, E-mail:[email protected] Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658, E-mail:[email protected] France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: (33)1 69 53 71 00, Fax: (33)1 69 53 71 10, E-mail:[email protected] United Kingdom: Hamamatsu Photonics UK Limited: Lough Point, 2 Gladbeck Way, Windmill Hill, Enfield, Middlesex EN2 7JA, United Kingdom, Telephone: (44)208-367-3560, Fax: (44)208-367-6384, E-mai:[email protected] North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171-41 Solna, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01, E-mail:[email protected] Cat. No. SSCS1047E04 Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E 20020 Arese (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741, E-mail:[email protected]

AUG/99 CR Created in Japan (PDF)

Related Documents