LAICA Filters

Filters

A filter is needed for each of the four CCDs. Overall, 124 filters have been built for LAICA, both with a wide and medium wavelength range coverage:

11 wide-band filters (left table, see transmission curves of Johnson- and Sloan filters) and 20 medium-band filters (colored bands overlayed over SDSS bands in black, full optics + atmospheric transmission) designed for the ALHAMBRA cosmological survey.LAICA Alh filterset

Band name λcentral λFWHM Trans.

U_Johnson 

3500 520 Curve
B_Johnson  4200 1400 Curve
V_Johnson 5500 1150 Curve
R_Johnson 6600 1850 Curve
I_Johnson 9000 100 Curve
B2     4300 1480 Curve
u'   SDSS 3500 630 Curve
g'   SDSS 4900 1230 Curve
r'    SDSS 6200 1350 Curve
i'    SDSS 7700 1500 Curve
z'   SDSS 9200 1600

Curve