My question involves a Divorce in the state of:California

Dear Sir / Madam,
I live in Orange county, California. I am a married man, and wants to file a divorce, I have two kids one is 20 and the other is 19 years old. And we all live together in California since many years.
My wife is refusing to come with me and file for divorce, and she recently traveled out of USA for a visit.
My question, is that can I file for a divorce and finish everything even if she is refusing, and even if she is out of USA?
Please I appreciate your kind reply, I have been suffering from this for almost 7 years.
thanks in advance.
Best regards.