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· · · · · · () TErahertz LImb Sounder (TELIS) LImb Sounder (TELIS) TELIS

06 2011

-1

2


()


Nb­AlOx­Nb Nb-AlN-NbN : J = 3 ­ 8 /2; : ~ 1 nm; C : ~ 1 m2



, SSIS ~ 0.8 m2

() 400*16 m2

, S~ 1 m2

Flux-Flow Oscillator (FFO)

Nb-AlOx-Nb; Nb-AlN-NbN; Jc = 5 - 8 kA/cm2 Nb kA/cm Optionally: SIS ­ Jc = 8 kA/cm2; FFO + HM = 4 kA/cm
2



Fiske
400 GHz

Flux-Flow

Frequency Tuning

700 GHz

JSC, VB = Vg/3



300 250

SIS Current (mkA)

200 150 100 50 0
FFO Frequency: 0 GHz 400 GHz 500 GHz 600 GHz 700 GHz

= 500

0

1

2

3

4

5

6

7

SIS Voltage (mV)

06 2011


Nb-AlN-NbN Nb-AlN-NbN ( 605 ; LW = 1.7 M; SR = 92 %) SR
-20 -25 IF Output Power (dBm) -30 -35 -40 -45
Power (dBm)

Ph ase lo ck e d at 605 GHz (S R = 92 % ) Frequency lock ed lo c Line width = 1.7 MH z

Span - 100 MHz R e so lu tion Ba nd w idth - 1 MH z

0

-20

Spectrum analyzer Resolution Banwidth RBW = 1 Hz

-50 -55 -60 360 380 400 420 440

-40

-60

Down-converted FFO Frequency (MHz)

-80

-100 -50

-40

-30

-20

-10

0

10

20

30

40

50

Of et fro Offset from carrier (Hz) (Hz)

06 2011

-1

7



7 100
(%%)

6
()

80 60 40
f f Nb-AlN-NbN Nb-AlN-NbN AlN NbN Nb-AlOx-Nb Nb-AlOx-Nb

5 4 3 2

20 0

1 0

300

400

500
()

600

700


TELIS (Terahertz Limb Sounder)
TELIS
ClO, BrO, O3, HCl, HOCl, etc; - ; ; ; · · ; : ­ 500 GHz by RAL ­ 450-650 GHz by SRON-IREE ­ 1.8 THz by DLR (PI) TH DLR (PI)

·



450 ­ 700 120 4-8 < 300 < 1 < 30 < 4.5

06 2011

-1

10


()
(K)
1000

800


600

, 497 601

400

200

0

450

500

550

600

650

()

, 4-8

-, 497



1E-5

IF amp SIS

Power meter BP filter
1E-6

Channel 1 Channel 2 Spectroscopic

FFO

2 A

1E-7

1E-8

Radiometer Eqn. di
1E-9 0.01

0.1

1

10

100

1000

t (sec)
(Allan Variance), 600 . , ­



40
-80.00 -72.00 -64.00 -56.00 -48.00

20

-40.00 -32.00 -24.00 -16.00 -8.000

Vertical scan, mm

0

0

40

-180.0 -120.0

-20
20

-60.00 0 60.00

Vertical scan, mm

120.0 180.0

-40 -40 -20 0 20 40

0

Horizontal scan, mm



-20

-40 -40 -20 0 20 40

Horizontal scan, mm




TELIS ­

12 10

FFO frequency 500 GHz

FFO linewidth, MHz

8 6 4 2 0

1,030

1,032

1,034

1,036

1,038

FFO voltage, mV


TELIS (Terahertz Limb Sounder) (Terahertz Limb Sounder)
TELIS-MIPAS Esrange, ; 2009 ., 2010, 2011 . : 400 000 3; : 1 200


, TELIS
## 1 2 3 4 5 6 7 8
06 2011

, 495.04 496.88 505.6 507.28 515.25 519.25 607.78 619.1

(High priority) H2 18O HDO BrO ( = 0.3 !!) ClO O2 /pointing /pressure /pressure BrO ( = 0.3 !!) O3 isotopes HCl (HOCl, ClO)
-1 16


,
FFO Freq = 495 GHz Orbit ­ 30 km; Increment

­

1.5 km,

Tangent: 10.5 ­ 30 km 45 degrees up

,

,


, ClO BrO (f = 495 519,3 ).

06 2011

-1

18




· () => ­ => ; · - ( < 1 ); · ­ ­ .





50 mm

· One pixel receiver with mechanical scanning
(NETD 13 mK; Spatial resolution 2 mm) Spatial resolution · Next step: linear array of SIRs


BSCCO mesa,
Huabing Wang Tsukuba, Japan Nanjing, China g,

Linewidth: down to 25 MHz Frequency range at 4.2 K: 584 736 GHz range

30 dB 2 GHz GHz 5 GHz



· () ; ; 300 ­ 700 , () 70%. «Esrange» () . 450 ­ 700 , 120 , 4 ­8 , 1 . , ClO BrO, . ( , ) . .
06 2011 -1 22

·

·

·