Sure.
Open a Ps document to the size you desire. I used a 1200px x 1000px document.
Make your first layer a background layer. I used a Solid Color Fill Adjustment layer. You can set the color to what ever you like, I used a light grey color.
On a new layer, create a selection slightly wider than high. I used the Rectangular Marquis Tool for this.
Choose your Gradient Tool, select your Foreground to Transparent preset, set your foreground color to your color of choice.
Create the gradient from left to right while holding down the shift key. You can do this over and over until you get it the way you want it. Just back step using Cmd/Cntrl + Z.
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When you have the gradient where you like it, hit Cmd/Cntrl + D to deselect.
Next hit Cmd/Cntrl + T to enter Free Transform. Right click and choose "Warp"....
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At the top left hand side of the Tools Options bar, choose "Arc".
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Hit enter to accept the state change.
Should now look like this....
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At this point you can use free transform to size it down if you wish.
Go to "View" > New Guide > enter 600px or half the distance of your documents width.
This placec a guide in the middle of your document thereby dividing your arched gradient in two.
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Then pull a guide to the top center of the gradient, and another to the bottom center.
Like this.....
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More to come!
