Development of Broadband Pulse-width Compressed Gratings in China Has Made Important Progress

The key laboratory of the Chinese Academy of Sciences for high-power laser materials has made important progress in the development of a wide-bandwidth pulsed grating with a central wavelength of 800 nm. The research group adopts a global optimization design method combining simulated annealing and Fourier mode to design a wide-media pulse width compression grating (PCG) with 800nm ​​center wavelength (see: Optical Letters, 35 (2010) 187). .

The members of the research group obtained a full dielectric film with a threshold value of ~1 J/cm2 (50 fs, TE, and 57° incidence) after extensive optimization and tolerance calculations, combined with excellent film-making techniques, and the relevant grating parameters have large process tolerances. . The research team of China University of Science and Technology Synchrotron Radiation Optics Laboratory and the Diffraction Grating of Tsinghua University carried out the grating verification of the entire dielectric film provided by the research group and obtained a PCG sample with a bandwidth better than 110 nm. The research team tested the sample 0-order reflectance spectrum, and used a method of calculating the complementarity of the -1 and 0-order reflectances to obtain a bandwidth above 110 nm where the -1 order diffraction efficiency was greater than 95%, and the bandwidth was obtained for the first time in the international arena. 100 nanometers above all medium PCG samples.

All-media film PCG has the advantages of high diffraction efficiency and high damage threshold compared with currently used gold film gratings. It has important application prospects in high-energy femtosecond lasers with 800 nm. This study was supported by the National High Technology 863 Program and the National Natural Science Foundation.

Telescopic Cylindrical Lift

Telescopic Cylindrical Lift:

Mobile Telescopic Cylinder Platforms are operated by the telescopic cylinders which is strong and work reliable. Even if you work at the 30 meter high, you still have the best performance and best reliability.

Portable Adjustable Cleaning Work Elevator Platform has two types, one is equipped with single ladder and the other has double ladders on both sides. 25m Cleaning Work Elevator Table could be raised up at the 2 speeds.

The biggest lifting height is 30 meters, the lifting capacity ranges from 120kg to 200kg. It is safe, reliable, beautiful and easily operated. The power sources could be 220V, 380V or chargeable battered power, hand pump.

Telescopic Cylindrical Lift Specifications Table:


Model

Lift Height

(m)

Overall Size

(m)

Lift Capacity (kg)

Speed

(m/s)

Platform Size(m)

Power Supply(v)

Power

(kw)

Weight(kg)

GTTY-6A

6

1.02*0.92*1.8

200

0.054

0.75*0.75

220

1.1

480

GTTY-8A

8

1.16*0.92*2.05

200

0.044

0.8*0.8

220

1.1

580

GTTY-10A

10

1.16*1*2.17

200

0.04

0.8*0.8

220

1.1

650

GTTY-12A

12

1.4*1.23*2.23

200

0.03

0.8*0.8

220

1.1

900

GTTY-14A

14

1.4*1.23*2.3

200

0.028

0.8*0.8

220

1.1

1075

GTTY-15A

15

1.4*1.23*2.4

200

0.026

0.8*0.8

220

1.1

1200

Model

Lift Height

(m)

Overall Size

(m)

Lift Capacity (kg)

Speed

(m/s)

Platform Size(m)

Power Supply(v)

Power

(kw)

Weight(kg)

GTTY-16B

16

1.68*1.39*2.36

200

0.026

0.8*0.8

220

1.5

1350

GTTY-18B

18

1.78*1.47*2.6

200

0.026

0.8*0.8

220

1.5

1430

GTTY-20B

20

1.78*1.56*2.65

150

0.042

0.8*0.8

220

1.1*2

1650

GTTY-21B

21

1.78*1.56*2.7

150

0.04

0.8*0.8

220

1.1*2

1700

GTTY-22B

22

1.97*1.65*2.8

150

0.035

0.8*0.8

220

1.1*2

1850

GTTY-23B

23

1.97*1.65*2.9

150

0.03

0.8*0.8

220

1.1*2

2000

GTTY-24B

24

1.97*1.65*3.0

150

0.043

0.8*0.8

220

1.1*2

2200

GTTY-25B

25

2.05*1.75*3.05

150

0.042

0.8*0.8

220

1.1*2

2350

GTTY-26B

26

2.05*1.75*3.20

150

0.04

0.8*0.8

220

1.1*2

2450

GTTY-28B

28

2.20*1.8*3.05

120

0.034

0.8*0.8

220

1.1*2

2500

GTTY-30B

30

2.25*1.9*3.25

120

0.034

0.8*0.8

220

1.1*2

2800

Cylindrical Lifr PlatformDual Mast Telescopic Cylindrical Plataforma Articulada


Application Area:

The Telescopic Cylindrical Lift can be used in the station, the workshop, practical hotels, airports, shopping mall, airport, stadium, dock, hotel, airport and all kinds of narrow site need to climb up the occasion of homework.

If you have any questions, please contact with us directly. Telescopic Cylindrical Lift are produced with High Quality and Good Appearance. Welcome you can visit our Factory. For inqury, Please send mail directly to us.


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Jinan East Machinery Co.,Ltd. , https://www.jneastmach.com