Text Formatting ⇒ Fourier transform custom command

[Hoopes]

Hi All,

I am trying to create a custom command that will display the Fourier transform of a given argument, with subscripts and superscripts in the correct position.
What I mean is something like the following,

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\ft{h_c^*} = \tilde{h}_c^*(f)

So basically, I want a tilde over the non-super or subscript (the h), and then apply the sub/superscripts (if any), and then postfix with (f). I would rather not use additional arguments, because I wanted to save that for a non-default choice of (f). E.g the closest I got was

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\newcommand{\ft}[2][f]{\ensuremath{\tilde{#2}\left(#1\right)}}

I thought maybe I could use some sort of \expandafter technique, but this didn't work.

Is there a way to break the ordering of the sub/superscript?