Optical Design - Zemax ray tracing software

Detector Selection

Mechanical Design

ATMOZ Workshop May 2016 Azores

Natalia Kouremeti, Julian Gröbner

Ricco Soder, Pascal Schlatter, Patrik Langer

Claudio Dellagiacoma

Marek Smid, Geiland Porrovechio

Design Objectives for Direct Irradiance Spectrometer O

ptical D

esig

n r

ela

ted

• Retrieval of total column of Ozone

• Measure over the range 295-335 nm with

high resolution (better than 0.3 nm FWHM)

• Retrieval of other trace gases UV-Vis-NIR range

(SO2,HCHO, NO2 ,O4 , H2O)

• “Oversampling” more than 3 pixels within the FWHM

Dete

cto

r • High Sensitivity & Signal to Noise Ratio in UV

• Stability

Optical Design Czerny-Turner design

ATMOZ Workshop May 2016 Azores

Optical Elements Off -Axis Parabolic Mirror

FL 125mm & 30o (40x40mm)

Grating

1800 lines/mm (44x44mm)

Custom made Spherical Mirror

FL 110mm (40x60mm)

Entrance Slit 60x1000 μm

Detector Length 24.567mm

Rotation

Min Wavelength (nm)

Maximum Wavelength (nm)

Imaged Wavelengths (nm)

linear step nm/pixel

FWHM (nm) Pixels within the

FWHM

UV -3.0 295.0 386.8 91.8 0.045 0.25±0.02 5.6

Vis 1.7 376.0 460.3 84.3 0.041 0.25±0.03 6.1

Vis (O4 & H2O)

15.6 600.0 660.0 60.0 0.029 0.21 to 0.31 7-10

NIR (O2) 25.5 740.0 790.0 45.0 0.020 0.17 to 0.32 10-15

Maximum 35.0 852.0 873.3 21.3 0.010 0.13 to 0.70 Up to 100

Rectangular Slit 60x1000μm

F# 8.9 - Full Cone Angle 6o Grating Position 1: UV Configuration 295-386.7 nm

wavelength (nm)

Dete

cto

r H

eig

ht

(mm

)

300 310 320 330 340 350 360 370 380-3

-2

-1

0

1

2

3

0 0.5 1-3

-2

-1

0

1

2

3

Normalized Distribution

-0.5 0 0.50

0.25

0.5

0.75

1

wavelength offset (nm)

Slit

Fu

ncti

on

-0.5 0 0.50

0.25

0.5

0.75

1

wavelength offset (nm)

Slit

Fu

ncti

on

-0.5 0 0.50

0.25

0.5

0.75

1

wavelength offset (nm)

Slit

Fu

ncti

on

2048x506

2048x250

ATMOZ Workshop May 2016 Azores

Magnification : 1.12 to 2.03

ATMOZ Workshop May 2016 Azores

300.0 - 300.3 nm 310.0 - 310.3 nm 320.0 - 320.3 nm

-0.3 -0.15 0 0.15 0.3

350.0 - 350.3 nm

-0.3 -0.15 0 0.15 0.3

370.0 - 370.3 nm

-0.3 -0.15 0 0.15 0.3

386.5 - 386.8 nm

-0.3 -0.15 0 0.15 0.3

360.0 - 360.3 nm

wavelength offset(nm)

0

0.25

0.5

0.75

1295.0 - 295.3 nm

Sli

t F

un

cti

on

-0.3 -0.15 0 0.15 0.30

0.25

0.5

0.75

1340.0 - 340.3 nm

Sli

t F

un

cti

on

330.0 - 330.3 nm

Slit= 60m, FCA=6o

Slit= 60m, FCA=8o

Slit= 60m, FCA=10o

Slit= 60m, FCA=12o

Sensitivity to acceptance angle

300.0 - 300.3 nm 310.0 - 310.3 nm 320.0 - 320.3 nm

-0.3 -0.15 0 0.15 0.3

350.0 - 350.3 nm

-0.3 -0.15 0 0.15 0.3

370.0 - 370.3 nm

-0.3 -0.15 0 0.15 0.3

386.5 - 386.8 nm

-0.3 -0.15 0 0.15 0.3

360.0 - 360.3 nm

wavelength offset(nm)

0

0.25

0.5

0.75

1295.0 - 295.3 nm

Sli

t F

un

cti

on

-0.3 -0.15 0 0.15 0.30

0.25

0.5

0.75

1340.0 - 340.3 nm

Sli

t F

un

cti

on

330.0 - 330.3 nm

Slit= 60m, FCA=6o

Slit= 60m, FCA=8o

Slit= 60m, FCA=10o

Slit= 60m, FCA=12o

ATMOZ Workshop May 2016 Azores

290 300 310 320 330 340 350 360 370 380 3900.2

0.25

0.3

0.35

0.4

0.45

0.5

0.55

wavelength (nm)

FW

HM

(n

m)

Slit= 60m, FCA=6o

Slit= 60m, FCA=8o

Slit= 60m, FCA=10o

Slit= 60m, FCA=12o

Sensitivity to acceptance angle

Resolution – Slit & Cone Angle

ATMOZ Workshop May 2016 Azores

0.2

0.25

0.3

0.35

0.4

0.45

0.5

Sli

t= 6

0u

m,

FC

A=

6d

eg

Sli

t= 6

0u

m,

FC

A=

8d

eg

Sli

t= 6

0u

m,

FC

A=

10d

eg

Sli

t= 6

0u

m,

FC

A=

12d

eg

Sli

t= 7

0u

m,

FC

A=

6d

eg

Sli

t= 7

0u

m,

FC

A=

8d

eg

Sli

t= 7

0u

m,

FC

A=

10d

eg

Sli

t= 7

0u

m,

FC

A=

12d

eg

FW

HM

(n

m)

Rectangular Slit 60x1000μm

F# 8.9 - Full Cone Angle 6o Grating Position 2: 376.0 - 460.3 nm

ATMOZ Workshop May 2016 Azores

wavelength (nm)

Dete

cto

r H

eig

ht

(mm

)

380 390 400 410 420 430 440 450 460-3

-2

-1

0

1

2

3

0 0.5 1-3

-2

-1

0

1

2

3

Normalized Distribution

375.6 375.8 376 376.2 376.4 376.60

0.5

1FWHM=0.27 nm

419.6 419.8 420 420.2 420.4 420.60

0.5

1FWHM=0.24 nm

459.6 459.8 460 460.2 460.4 460.60

0.5

1FWHM=0.24 nm

2048x506

2048x250

Rectangular Slit 60x1000μm

F# 8.9 - Full Cone Angle 6o Grating Position 3: 600 - 665 nm

ATMOZ Workshop May 2016 Azores

wavelength (nm)

Dete

cto

r H

eig

ht

(mm

)

610 620 630 640 650 660-3

-2

-1

0

1

2

3

0 0.5 1-3

-2

-1

0

1

2

3

Normalized Distribution

601.3 601.4 601.5 601.6 601.7 601.80

0.5

1FWHM=0.20 nm

628.2 628.4 628.6 628.8 629 629.20

0.5

1FWHM=0.24 nm

661 661.2 661.4 661.6 661.8 6620

0.5

1FWHM=0.30 nm

2048x506

2048x250

Rectangular Slit 60x1000μm

F# 8.9 - Full Cone Angle 6o Grating Position 4: 740 - 785 nm

ATMOZ Workshop May 2016 Azores

wavelength (nm)

Dete

cto

r H

eig

ht

(mm

)

745 750 755 760 765 770 775 780-3

-2

-1

0

1

2

3

0 0.5 1-3

-2

-1

0

1

2

3

Normalized Distribution

742.6 742.7 742.8 742.90

0.5

1FWHM=0.17 nm

760.7 760.8 760.9 7610

0.5

1FWHM=0.22 nm

781.3 781.4 781.5 781.6 781.7 781.80

0.5

1FWHM=0.32 nm

2048x506

2048x250

wavelength (nm)

Dete

cto

r H

eig

ht

(mm

)

854 856 858 860 862 864 866 868 870 872 874-3

-2

-1

0

1

2

3

0 0.5 1-3

-2

-1

0

1

2

3

Normalized Distribution

853.1 853.2 853.3 853.40

0.5

1FWHM=0.13 nm

863.3 863.4 863.5 863.60

0.5

1FWHM=0.20 nm

874.2 874.4 874.6 874.8 8750

0.5

1FWHM=0.70 nm

2048x506

2048x250

Rectangular Slit 60x1000μm

F# 8.9 - Full Cone Angle 6o Maximum Grating Position: 853-874nm

ATMOZ Workshop May 2016 Azores

Detector Selection

Hamamatsu Detectors

Active Pixels Image Size

H(mm )x V(mm) Type Board

Special Feature

1 S11639 2048x1 28.672x0.200 CMOS Jeti –SDCM3

16bits CMOS

2 S11156 2048x1 28.672x1.000 CCD Jeti –RU60

16bits Electronic

shutter

3 S10141-1107S 2048x122 24.576 x 1.464 CCD Jeti –VersaPic

16bits One stage TE-

cooled

4 S10141-1108S x250 x 3.000 CCD Jeti –VersaPic

16bits One stage TE-

cooled

5 S10141-1109S x506 x 6.072 CCD Jeti –VersaPic

16bits One stage TE-

cooled

6 S3903-1024Q 1024x1 25.6 x 2.5 NMOS (PSR)

PMOD-PSR 18bits

S3904-2048Q 2048x1 51.2 x 2.5 NMOS

ATMOZ Workshop May 2016 Azores

Detector Selection – Noise Level -EDR

ATMOZ Workshop May 2016 Azores

101

102

103

104

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

11000

Integration Time (ms)

ED

R(B

its A

D C

on

ve

rte

r -

Da

rk )

/ S

TD

of D

ark

-20.01 0.01 oC CCD-S10141-1109S (2048x506)

-20.00 0.00 oC CCD-S10141-1108S (2048x250)

-20.00 0.00 oC CCD-S10141-1107S (2048x122)

+20.20 0.03 oC NMOS-S39031024Q 18bit

+ 5.00 Sony ILX511

ATMOZ Workshop May 2016 Azores

Mechanical Design

ATMOZ Workshop May 2016 Azores

Mechanical Design

Manufacturing Progress

ATMOZ Workshop May 2016 Azores

Manufacturing

Progress

• Painting Black

• Testing 2 stages CCD cooling

• Alignment

• Testing of telescope & producing final

version

• Operational & Analysis Software ATMOZ Workshop May 2016 Azores

The EMRP is jointly funded by the EMRP participating

countries within EURAMET and the European Union

Optical Design

ATMOZ project meeting 29-30 October 2015 Prague

-10 0 10 20 30 40 500

0.5

1

1.5

X: -10

Y: 0.01861

Th

erm

al

Dark

Dark

=E

DA

RK

+ T

herm

alD

ark

x I

T

Sensor Temerature (oC)

Dark -PSR_005

data

extrapolation

386.3 386.4 386.5 386.6 386.7 386.80

0.2

0.4

0.6

0.8

1

wavelength (nm)

Sli

t F

un

cti

on

Image analysis ray table listing

Field Width : .06x1 Millimeters

Number of rays/pixel/unit intensity: 4

Optical Elements: Parabolic Mirror F# = 125, Grating Line/mm = 1800, Spherical Mirror F# = 110

Data-Zemax

Gauss Fit - FWHM 0.248 nm

Detector Selection – Noise Level

CCD 2048x122 pixels Dark Signal = Electronic Dark + Thermal Dark (Temp) x IT

200 400 600 800 1000 1200 1400 1600 1800 20002000

3000

4000

5000

6000

7000

8000

pixel

Dark

Sig

nal

for

IT=

500m

s

S10141_VersaPic Dark Signal Measurements

-20.0 S153

-20.0 S153

-10.0 S153

-10.0 S153

-0.0 S153

10.0 S153

20.0 S153

Sensor Temperature (oC)

200 400 600 800 1000 1200 1400 1600 1800 20002000

2100

2200

2300

2400

2500

pixel

Ele

ctr

on

ic D

ark

(D

ark

at

IT=

0m

s)

200 400 600 800 1000 1200 1400 1600 1800 20000

2

4

6

8

10

pixel

Th

erm

al

Dark

(co

un

ts/m

s)

-25 -20 -15 -10 -5 0 5 10 15 202050

2100

2150

2200

2250

2300

Sensor Temperature (oC)

Mean

Ele

ctr

on

ic D

ark

-20 -15 -10 -5 0 5 10 150

2

4

6

8

10

X: -20

Y: 0.02127 Sensor Temperature (oC)

Mean

Th

erm

al

Dark

(co

un

ts/m

s)

101

102

103

104

3000

3500

4000

4500

5000

5500

Integration Time (ms)

ED

R

(Bit

s A

D C

on

vert

er

- D

ark

) /

ST

D o

f D

ark

S10141117S_Cooled

-20.00 0.00 oC ,Sens=153, N=50,PreReads=5

-10.40 0.00 oC ,Sens=153, N=50,PreReads=5

100

101

102

103

104

400

500

600

700

800

900

Integration Time (ms)

Pix

elM

ean

Dark

Sig

nal

101

102

103

104

12

13

14

15

16

17

18

19

Integration Time (ms)

Pix

elM

ean

ST

D o

f D

ark

Sig

nal

-20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10400

500

600

700

800

900

Pix

elM

ean

D

ark

Sig

nal

Sensor Temperature (oC)

-20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -1012

13

14

15

16

17

18

19

Pix

elM

ean

S

td o

f D

ark

Sig

nal

Sensor Temperature (oC)

Detector Selection – Noise Level

CCD 2048x122 pixels

Detector Selection – Noise Level

CCD 2048x506 pixels

ATMOZ project meeting 29-30 October 2015 Prague

101

102

103

104

1000

2000

3000

4000

5000

6000

7000

8000

Integration Time (ms)

ED

R

(Bit

s A

D C

on

vert

er

- D

ark

) /

ST

D o

f D

ark S10141119S_Cooled

-20.01 0.01 oC ,Sens=157, N=50,PreReads=5

-10.02 0.00 oC ,Sens=157, N=50,PreReads=5

100

101

102

103

104

101

102

103

104

Integration Time (ms)

Pix

elM

ean

Dark

Sig

nal

101

102

103

104

0

10

20

30

40

50

Integration Time (ms)

Pix

elM

ean

ST

D o

f D

ark

Sig

nal

-22 -20 -18 -16 -14 -12 -100

1000

2000

3000

4000

5000

Pix

elM

ean

D

ark

Sig

nal

Sensor Temperature (oC)

-22 -20 -18 -16 -14 -12 -100

10

20

30

40

50

Pix

elM

ean

S

td o

f D

ark

Sig

nal

Sensor Temperature (oC)

Detector Selection

ATMOZ project meeting 29-30 October 2015 Prague

500 1000 1500 20000

500

1000

1500

2000

2500

3000

pixel

Da

rk S

ign

al

-20.00 0.00 oC ,S10141117S

Sens=153,PreReads=5

500 1000 1500 2000

10

20

30

40

50

pixel

Std

of D

ark

Sig

na

l

10

20

30

40

50

60

70

80

90

100

200

300

400

500

1000

2000

3000

4000

5000

6000

Integration Time(ms)

500 1000 1500 20000

500

1000

1500

2000

2500

3000

Da

rk S

ign

al

-20.01 0.01 oC , S10141119S

Sens=157,PreReads=5

pixel

500 1000 1500 2000

10

20

30

40

50

pixel

Std

of D

ark

Sig

na

l

Detector Selection

ATMOZ project meeting 29-30 October 2015 Prague

500 1000 1500 20000

500

1000

1500

2000

2500

3000

Da

rk S

ign

al

-20.01 0.01 oC , S10141119S

Sens=157,PreReads=5

pixel

500 1000 1500 2000

10

20

30

40

50

pixel

Std

of D

ark

Sig

na

l

200 400 600 800 1000 1200 1400 1600 1800 20000

500

1000

1500

2000

2500

3000

pixel

Dark

Sig

nal

-19.90 0.00 oC ,Sens=155,PreReads=5

200 400 600 800 1000 1200 1400 1600 1800 200010

20

30

40

50

pixel

Std

of

Dark

Sig

nal